Chris A. Johnson, MSc, PhD, Dsc

Portrait
Director, Visual Field Reading Center
Professor of Ophthalmology and Visual Sciences

Contact Information

Office: 11196F PFP
200 Hawkins Dr.
Iowa City, IA 52242
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Primary Office: B150 MTF
2501 Crosspark Road
Coralville, IA 52241-3210
319-356-0384

Education

PhD, Psychology, Pennsylvania State University
BA, Psychology, University of Oregon
MSc, Psychology, Pennsylvania State University
DSc, State University of New York

Postdoctoral Fellow, Ophthalmology Research, University of Florida
Postdoctoral Fellow, Ophthalmology Research, University of California

Research Summary

I am currently the director of the Visual Field Reading Center at the University of Iowa. I have skills in the evaluation and interpretation of visual field information, and in determining the relationship between optic disc hemorrhages and visual field loss. I have maintained a long-standing interest in structure-function relationships in glaucoma.

Publications

Wall, M., Johnson, C. A. & Zamba, K. D. (In Press). SITA-Standard perimetry has better performance than FDT2 matrix perimetry for detecting glaucomatous progression. The British journal of ophthalmology. PMID: 29331951.

Lin, S., Mihailovic, A., West, S. K., Johnson, C. A., Friedman, D. S., Kong, X. & Ramulu, P. Y. (2018). Predicting Visual Disability in Glaucoma With Combinations of Vision Measures. Translational vision science & technology, 7(2), 22. PMID: 29670831.

Russell, S., Bennett, J., Wellman, J. A., Chung, D. C., Yu, Z. F., Tillman, A., Wittes, J., Pappas, J., Elci, O., McCague, S., Cross, D., Marshall, K. A., Walshire, J., Kehoe, T. L., Reichert, H., Davis, M., Raffini, L., George, L. A., Hudson, F. P., Dingfield, L., Zhu, X., Haller, J. A., Sohn, E. H., Mahajan, V. B., Pfeifer, W., Weckmann, M., Johnson, C., Gewaily, D., Drack, A., Stone, E., Wachtel, K., Simonelli, F., Leroy, B. P., Wright, J. F., High, K. A. & Maguire, A. M. (2017). Efficacy and safety of voretigene neparvovec (AAV2-hRPE65v2) in patients with RPE65-mediated inherited retinal dystrophy: a randomised, controlled, open-label, phase 3 trial. Lancet (London, England), 390(10097), 849-860. PMID: 28712537.

Klein, B. E., Johnson, C. A., Meuer, S. M., Lee, K., Wahle, A., Lee, K. E., Kulkarni, A., Sonka, M., Abràmoff, M. D. & Klein, R. (2017). Nerve Fiber Layer Thickness and Characteristics Associated with Glaucoma in Community Living Older Adults: Prelude to a Screening Trial?. Ophthalmic epidemiology, 24(2), 104-110. PMID: 28032805.

Johnson, C. A., Thapa, S., George Kong, Y. X. & Robin, A. L. (2017). Performance of an iPad Application to Detect Moderate and Advanced Visual Field Loss in Nepal. American journal of ophthalmology, 182, 147-154. PMID: 28844641.

Guo, Z., Kwon, Y. H., Lee, K., Wang, K., Wahle, A., Alward WLM,, Fingert, J. H., Bettis, D. I., Johnson, C. A., Garvin, M. K., Sonka, M. & Abràmoff, M. D. (2017). Optical Coherence Tomography Analysis Based Prediction of Humphrey 24-2 Visual Field Thresholds in Patients With Glaucoma. Investigative ophthalmology & visual science, 58(10), 3975-3985. PMID: 28796875.

Takahashi, G., Demirel, S. & Johnson, C. A. (2017). Predicting conversion to glaucoma using standard automated perimetry and frequency doubling technology. Graefe's archive for clinical and experimental ophthalmology, 255(4), 797-803. PMID: 28110356.

Joltikov, K. A., de Castro, V. M., Davila, J. R., Anand, R., Khan, S. M., Farbman, N., Jackson, G. R., Johnson, C. A. & Gardner, T. W. (2017). Multidimensional Functional and Structural Evaluation Reveals Neuroretinal Impairment in Early Diabetic Retinopathy. Investigative ophthalmology & visual science, 58(6), BIO277-BIO290. PMID: 28973314.

Ding, X., Chang, R. T., Guo, X., Liu, X., Johnson, C. A., Holden, B. A. & He, M. (2016). Visual field defect classification in the Zhongshan Ophthalmic Center-Brien Holden Vision Institute High Myopia Registry Study. British journal of ophthalmology, 100(12), 1697-1702. PMID: 27033693.

Johnson, C. A. (2016). Visual Fields: Visual Field Test Strategies. In Pearls of Glaucoma Management. pp. 145-151. Springer Nature. DOI: 10.1007/978-3-662-49042-6_15.

Wall, M., Johnson, C. A., Cello, K. E., Zamba, K. D., McDermott, M. P. & Keltner, J. L. (2016). Visual Field Outcomes for the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT). Investigative Opthalmology & Visual Science, 57(3), 805-12. PMID: 26934136.

Cello, K. E., Keltner, J. L., Johnson, C. A. & Wall, M. (2016). Factors Affecting Visual Field Outcomes in the Idiopathic Intracranial Hypertension Treatment Trial. Journal of Neuro-Ophthalmology: The Official Journal of the North American Neuro-Ophthalmology Society, 36(1), 12-Jun. PMID: 26618282.

Grobbel, J., Dietzsch, J., Johnson, C. A., Vonthein, R., Stingl, K., Weleber, R. G. & Schiefer, U. (2016). Normal Values for the Full Visual Field, Corrected for Age- and Reaction Time, Using Semiautomated Kinetic Testing on the Octopus 900 Perimeter. Translational Vision Science & Technology, 5(2), Article 5. PMID: 26966641.

Sergott, R. C., Johnson, C. A., Laxer, K. D., Wechsler, R. T., Cherny, K., Whittle, J., Feng, G., Lee, D. & Isojarvi, J. (2016). Retinal structure and function in vigabatrin-treated adult patients with refractory complex partial seizures. Epilepsia, 57(10), 1634-1642. PMID: 27580566.

Bourne, R., Johnson, C., Lawrenson, J. & Bui, B. V. (2015). Glaucoma: basic science and clinical translation. Ophthalmic & physiological optics, 35(2), 111-3. PMID: 25761578.

Weleber, R. G., Smith, T. B., Peters, D., Chegarnov, E. N., Gillespie, S. P., Francis, P. J., Gardiner, S. K., Paetzold, J., Dietzsch, J., Schiefer, U. & Johnson, C. A. (2015). VFMA: Topographic Analysis of Sensitivity Data From Full-Field Static Perimetry. Translational vision science & technology, 4(2), 14. PMID: 25938002.

Realini, T., Zangwill, L., Flanagan, J., Garway-Heath, D., Patella, V. M., Johnson, C. A., Artes, P., Gaddie, B. & Fingeret, M. (2014). Normative databases for Imaging Instrumentation. Journal of Glaucoma. PMID: 25265003.

Keltner, J. L., johnson, C. A., Cello, K. E., Wall, M. & Nordic Idiopathic Intracranial Hypertension Study Group (2014). Baseline Visual Field Findings in the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT). Invest Ophthalmol Vis Sci, 55(5), 3200-07. PMID: 24781936.

Johnson, C. A., Sherman, K., Doyle, C. & Wall, M. (2014). A comparison of false-negative responses for full threshold and SITA standard perimetry in glaucoma patients and normal observers. Journal of glaucoma, 23(5), 288-92. PMID: 23632399.

Johnson, C. A. (2014). Detecting functional changes in the patient's vision: visual field analysis. In J. R. Samples , P. N. Schacknow (Eds.) Clinical Glaucoma Care: The Essentials. pp. 117-59. New York: IN: Samples J R, Schacknow P N, eds, Clinical Glaucoma Care: The Essentials. New York: Springer.

Johnson, C. A. (2014). The role of visual fields in the early detection of glaucoma and its progression. Glaucoma Today, 42-44.

Johnson, C. A. (2014). Psychophysical and Electrophysiological Testing in Glaucoma: Visual Fields and Other Functional Tests, Chapter 8. In N. Choplin , C. Traverso (Eds.) Atlas of Glaucoma. (3rd ed.), pp. 87-112. IN Choplin N. and Traverso C, eds. Atlas of Glaucoma, 3rd ed..

Johnson, C. A. (2014). Advanced psychophysical tests for glaucoma. In Ophthalmology. Chapter 10.6. (4th), pp. 1036-1039. New York: IN: Ophthalmology, 4th ed. New York: Elsevier.

Carroll, J. N., Johnson, C. A. (2013). Visual field testing: from one medical student to another. pp. 1-14. Eye Rounds.

Anderson, A. J., Johnson, C. A. (2013). Author response: effect of intraocular pressure on the Bayesian estimation of rates of visual field progression in glaucoma. Invest Ophthalmol Vis Sci, 54(6), 4214. PMID: 23785102.

Wall, M., Doyle, C. K., Zamba, K. D., Artes, P. & Johnson, C. A. (2013). The repeatability of mean defect with size III and size V standard automated perimetry. Invest Ophthalmol Vis Sci, 54(2), 1345-1351. PMID: 23341012.

Gardiner, S. K., Johnson, C. A. & Demirel, S. (2013). The effect of test variability on the structure-function relationship in early glaucoma. Graefes Arch Clin Exp Ophthalmol, 250(12), 1851-1861. PMID: 22527311.

Lloyd, M. J., Mansberger, S. L., Fortune, B. A., Nguyen, H., Torres, R., Gardiner, S. K., Johnson, C. A. & Gioffi, G. A. (2013). Features of optic disc progression in patients with ocular hypertension and early glaucoma. J Glaucoma, 22(5), 343-348. PMID: 23719180.

Anderson, A. J., Johnson, C. A. (2013). How useful is population data for informing visual field progression rate estimation?. Invest Ophthalmol Vis Sci, 54(3), 2198-2206. PMID: 23462750.

Kummet, C. M., Zamba, K. D., Doyle, C. K., Johnson, C. A. & Wall, M. (2013). Refinement of pointwise linear regression criteria for determining glaucoma progression. Invest Ophthalmol Vis Sci, 54(9), 6234-41. PMID: 23908183.

Johnson, C. A. (2013). Psychophysical factors that have been applied to clinical perimetry. Vision Res, 90, 25-31. PMID: 23872241.

Salvetat, M. L., Zeppieri, M., Arisi, L., Johnson, C. A., Sampaolesi, R. & Brusini, P. (2013). Learning effect and test-retest variability of pulsar perimetry. J Glaucoma, 22(3), 230-237. PMID: 22027935.

Wall, M., Doyle, C. K., Eden, T. & Johnson, C. A. (2013). Size threshold perimetry performs as well as conventional automated perimetry with stimulus sizes III, V, and VI for glaucomatous loss. Invest Ophthalmol Vis Sci, 54(6), 3975-3983. PMID: 23633660.

Johnson, C. A. (2012). Answers in a flash: A look at perimetry and guidelines for the proper evaluation of visual field results. Optometric Management.

Kymes, S. M., Lambert, D. L., Lee, P. P., Musch, D. C., Siegfried, C. J., Kotak, S. V., Stwalley, D. L., Fain, J., Johnson, C. A. & Gordon, M. O. (2012). The development of a decision analytic model of changes in mean deviation in people with glaucoma: The COA model. Ophthalmology, 119(7), 1367-1374. PMID: 22537616.

Gardiner, S. K., Johnson, C. A. & Demirel, S. (2012). Factors predicting the rate of functional progression in early and suspected glaucoma. Invest Ophthalmol Vis Sci, 53(7), 3598-3604. PMID: 22570353.

Hood, D. C., Raza, A. S., de Moraes, C. G., Johnson, C. A., Liebmann, J. M. & Ritch, R. (2012). The nature of macular damage in glaucoma as revealed by averaging optical coherence tomography data. Transl Vis Sci Technol, 1(1), 3. PMID: 23626924.

Twa, M. D., Parthasarathy, S., Johnson, C. A. & Bullimore, M. A. (2012). Morphometric analysis and classification of glaucomatous optic neuropathy using radial polynomials. Journal of Glaucoma, 21(5), 302-312. PMID: 21423035.

Johnson, C. A., Keltner, J. L. & Artes, P. H. (2011). Fields of OHTS: The Ocular Hypertension Treatment Study. Glaucoma Today, 9, 20-23.

Johnson, C. A., Anderson, D., Fingeret, M., Garway-Heath, D. T. & Harwerth, R. (2011). Glaucoma: recent discoveries and patient care. (Vols. 88). (1), pp. 2-3. Optom Vis Sci. PMID: 21191285.

Johnson, C. A., Wall, M. & Thompson, H. S. (2011). A history of perimetry and visual field testing. Optom Vis Sci, 88(1), E8-15. PMID: 21131878.

McKendrick, A. M., Johnson, C. A. (2011). Temporal Properties of Vision, Chapter 37. In Levin , Nilsson , Ver Hoeve , Wu , Kaufman , Alm (Eds.) Adler’s Physiology of the Eye, Chapter 37. (11), pp. 698-712. Edinburgh: IN: Adler’s Physiology of the Eye, 11th ed. Saunders, Elsevier.

Zeppieri, M., Brusini, P., Johnson, C. A. & Salvetat, M. L. (2011). Pulsar Perimetry in the Diagnosis of Early Glaucoma [Reply]. American Journal of Ophthalmology, 152(3), 501-2. PMID: 21855675.

Johnson, C. A., Wall, M. (2011). The Visual Field, Chapter 35. In Levin , Nilsson , Ver Hoeve , Wu , Kaufman , Alm (Eds.) Adler’s Physiology of the Eye. (11), pp. 655-676. Edinburgh: IN: Adler’s Physiology of the Eye, 11th ed. Edinburgh: Saunders, Elsevier.

Vislisel, J. M., Doyle, C. K., Johnson, C. A. & Wall, M. (2011). Variability of Rarebit and standard perimetry sizes I and III in normals. Optom Vis Sci, 88(5), 635-630. PMID: 21336225.

Johnson, R. K., Premraj, S., Patel, S. S., Wahle, A., Stolpen, A., Sonka, M. & Scholz, T. D. (2011). Quantitative assessment of the entire thoracic aorta from magnetic resonance images. Cardiol Young, 21(2), 170-7. PMID: 21205418.

Gardiner, S. K., Johnson, C. A. & Demirel, S. (2011). Cup size predicts subsequent functional change in early glaucoma. Optom Vis Sci, 88(12), 1470-1476. PMID: 21912304.

Sample, P. A., Dannheim, F., Artes, P. H., Dietzsch, J., Henson, D., Johnson, C. A., Ng, M., Schiefer, U. & Wall, M. (2011). Imaging and Perimetry Society standards and guidelines. Optometry and vision science, 88(1), 4-7. PMID: 21099442.

Gardiner, S. K., Demirel, S. & Johnson, C. A. (2011). Perimetric indices as predictors of future glaucomatous functional change. Optom Vis Sci, 88(1), 56-62. PMID: 20966804.

Anderson, A. J., Johnson, C. A. & Werner, J. S. (2011). Measuring visual function in age-related macular degeneration with frequency-doubling (matrix) perimetry. Optom Vis Sci, 88(7), 806-15. PMID: 21478785.

Gardiner, S. K., Demirel, S., Johnson, C. A. & Swanson, W. H. (2011). Assessment of linear-scale indices for perimetry in terms of progression in early glaucoma. Vision Res, 51(16), 1801-10. PMID: 21704057.

Berson, E. L., Rosner, B., Sandberg, M. A., Weigel-DiFranco, C., Brockhurst, R. J., Hayes, K. C., Johnson, E. J., Anderson, E. J., Johnson, C. A., Gaudio, A. R., Willett, W. C. & Schaefer, E. J. (2010). Clinical trial of Lutein in patients with retinitis pigmentosa receiving vitamin A. Arch Ophthalmol, 128(4), 403-411. PMID: 20385935.

Johnson, C. A. (2010). Detecting functional changes in the patient’s vision - Visual Field Analysis, Chapter 23. In Schacknow , Samples (Eds.) The Glaucoma Book. pp. 229-264. Wilmington, PA: IN: Schackmow & Samples. The Glaucoma Book: Wilmington. PA: Springer.

Johnson, C. A. (2010). Five questions concerning improving the utility of visual field testing. Glaucoma Today, 8, 64-66.

Johnson, C. A. (2010). Visual Fields: visual field test strategies, Chapter 15. In Giaconi , Law , Coleman , Caprioli (Eds.) Pearls of Glaucoma Management. pp. 123-128. New York: IN: Pearls of Glaucoma Management. New York: Springer.

Brown, R. H., Humayun, M., Johnson, C. A., Latina, M. A., Lewis, R. A. & Shields, M. B. (2010). The pathway to medical innovation. Glaucoma Today, 8, 30-37.

Johnson, C. A. (2010). New progression software for the optic disc and visual field. Glaucoma Today, 8, 32-36.

Johnson, C. A. (2010). Learning effects and perimetry. Optometric Glaucoma Society E-journal, 5, 4-8.

Johnson, C. A. (2010). Short-Wavelength Automated Perimetry (SWAP) May Not Predict Glaucoma Conversion. Glaucoma Today, 8, 49.

Zeppieri, M., Brusini, P., Parisi, L., Johnson, C. A., Sampaolesi, R. & Salvetat, M. L. (2010). Pulsar perimetry in the diagnosis of early glaucoma. Am J Ophthalmol, 149(1), 102-12. PMID: 19800607.

Johnson, C. A., Wilkinson, M. E. (2010). Vision and driving: the United States. Journal of neuro-ophthalmology, 30(2), 170-6. PMID: 20523184.

Keltner, J. L., Johnson, C. A., Cello, K. E., Dontchev, M., Gal, R. L., Beck, R. W. & Optic Neuritis Study Group (2010). Visual field profile of optic neuritis: a final follow-up report from the optic neuritis treatment trial from baseline through 15 years. Arch Ophthalmol, 128(3), 330-7. PMID: 20212204.

Kass, M. A., Gordon, M. O., Gao, F., Heuer, D. K., Higginbotham, E. J., Johnson, C. A., Keltner, J. K., Miller, J. P., Parrish, R. K., Wilson, M. R. & Ocular Hypertension Treatment Study Group (2010). Delaying treatment of ocular hypertension: the ocular hypertension treatment study. Arch Ophthalmol, 128(3), 276-87. PMID: 20212196.

O'Leary, N., Crabb, D. P., Mansberger, S. L., Fortune, B., Twa, M. D., Lloyd, M. J., Kotecha, A., Garway-Heath, D. F., Cioffi, G. A. & Johnson, C. A. (2010). Glaucomatous progression in series of stereoscopic photographs and Heidelberg retina tomograph images. Arch Ophthalmol, 128(5), 560-8. PMID: 20457976.

Artes, P. H., Chauhan, B. C., Keltner, J. L., Cello, K. E., Johnson, C. A., Anderson, D. R., Gordon, M. O., Kass, M. A. & Ocular Hypertension Treatment Study Group (2010). Longitudinal and cross-sectional analyses of visual field progression in participants of the Ocular Hypertension Treatment Study. Arch Ophthalmol, 128(12), 1528-32. PMID: 21149774.

Terry, A. L., Paulose-Ram, R., Tilert, T. J., Johnson, C. A., Zhang, X., Lee, P. P. & Saaddine, J. B. (2010). The methodology of visual field testing with frequency doubling technology in the National Health and Nutrition Examination Survey, 2005-2006. Ophthalmic Epidemiol, 17(6), 411-21. PMID: 21090914.

Wall, M., Johnson, C. A., Kardon, R. H. & Crabb, D. P. (2009). Use of a continuous probability scale to display visual field damage. Arch Ophthalmol, 127(6), 749-56. PMID: 19506193.

Johnson, C. A. (2009). The decision tree in glaucoma diagnosis: Our knowledge of glaucoma is rapidly expanding. New knowledge about glaucoma can lead to earlier clinical intervention. Review of Optometry, 146.3, 100-108.

Johnson, C. A. (2009). Determining progression in glaucoma. Glaucoma Today, 7, 22-27.

Johnson, C. A. (2009). Advanced psychophysical tests for glaucoma, Chapter 10.6. In M. Yanoff , J. Duker (Eds.) Ophthalmology. (3), pp. 1137-1140. New York: IN: Yanoff M, Duker J, eds. Ophthalmology, 3rd ed. New York: Elsevier.

Demirel, S., Fortune, B., Fan, J., Levine, R. A., Torres, R., Nguyen, H., Mansberger, S. L., Gardiner, S. K., Cioffi, G. A. & Johnson, C. A. (2009). Predicting progressive glaucomatous optic neuropathy using baseline standard automated perimetry data. Invest Ophthalmol Vis Sci, 50(2), 674-80. PMID: 18936149.

Schiefer, U., Pascual, J. P., Edmunds, B., Feudner, E., Hoffmann, E. M., Johnson, C. A., Lagrèze, W. A., Pfeiffer, N., Sample, P. A., Staubach, F., Weleber, R. G., Vonthein, R., Krapp, E. & Paetzold, J. (2009). Comparison of the new perimetric GATE strategy with conventional full-threshold and SITA standard strategies. Investigative ophthalmology & visual science, 50(1), 488-94. PMID: 19060285.

Fortune, B., Zhang, X., Hood, D. C., Demirel, S., Patterson, E., Jamil, A., Mansberger, S. L., Cioffi, G. A. & Johnson, C. A. (2008). Effect of recording duration on the diagnostic performance of multifocal visual-evoked potentials in high-risk ocular hypertension and early glaucoma. J Glaucoma, 17(3), 175-82. PMID: 18414101.

Johnson, C. A. (2008). Is FDT better than SWAP for the detection of early glaucoma?. International Glaucoma Review, 10(2), 7-8.

Johnson, C. A. (2008). Evaluation of visual function, Chapter 17. In Tasman , Jaeger (Eds.) Duane’s Ophthalmology Solutions. pp. 1-51. Philadelphia: IN: Duane’s Ophthalmology Solutions (Tasman, Jaeger, eds.) Philadelphia: Lippincott.

Johnson, C. A., Demirel, S. (2008). Psychophysiology of Glaucoma: From form to function, Chapter 29. M. B. Shields , J. Tombran-Tink , C. J. Barnstable (Eds.) pp. 527-548. Totowa NJ: IN: Ophthalmology Research: Mechanisms of the Glaucomas. Totowa NJ:Humana Press.

Gardiner, S. K., Demirel, S. & Johnson, C. A. (2008). Is there evidence for continued learning over multiple years in clinical perimetry?. Optometry and Visual Science, 85(11), 1043-1048. PMID: 18981919.

Johnson, C. A. (2008). What visual field tests should I use in my glaucoma suspects? My patients with manifest glaucoma? Chapter 7. In Heuer , Gedde , Lewis (Eds.) Curbside Conversations in Glaucoma, Chapter 7. pp. 31-39. Thoroughfare NJ: IN: Curbside Conversations in Glaucoma (Heuer, Gedde, Lewis eds.), Thoroughfare NJ:Slack Incorporated.

Wall, M., Brito, C. F., Woodward, K. R., Doyle, C. K., Kardon, R. H. & Johnston, C. A. (2008). Total deviation probability plots for stimulus size V perimetry: A comparison with size III stimuli. Arch Ophthalmol, 126(4), 473-479. PMID: 18413515.

Nevalainen, J., Paetzold, J., Krapp, E., Vonthein, R., Johnson, C. A. & Schiefer, U. (2008). The use of Semi-automated Kinetic Perimetry (SKP) to monitor advanced glaucomatous visual field loss. Graefes Arch Clin Exp Ophthalmol, 246(9), 1331-1339. PMID: 18563431.

Nevalainen, J., Krapp, E., Paetzold, J., Mildenberger, I., Besch, D., Vonthein, R., Keltner, J. L., Johnson, C. A. & Schiefer, U. (2008). Visual field defects in acute optic neuritis--distribution of different types of defect pattern, assessed with threshold-related supraliminal perimetry, ensuring high spatial resolution. Graefe's archive for clinical and experimental ophthalmology, 246(4), 599-607. PMID: 18239928.

Johnson, C. A. (2008). Occupational psychophysics to establish vision requirements. Optom Vis Sci, 85(10), 910-23. PMID: 18832974.

Johnson, C. A. (2008). Frequency Doubling Technology (FDT) perimetry for detection of glaucomatous visual field loss. Effectiveness of the FDT and Humphrey Matrix perimeters. Glaucoma Today, 26-28.

Spry, P., Johnson, C. A., Anderson, A. J., Gunvant, P., Fingeret, M., Keltner, J. L., Wall, M. & Werner, J. S. (2008). A Primer for Frequency Doubling Technology (FDT) Perimetry Using the Humphrey Matrix. Dublin CA: Dublin CA: Carl Zeiss Meditec.

Wall, M., Doyle, C. K., Brito, C. F., Woodward, K. R. & Johnson, C. A. (2008). A comparison of catch trial methods used in standard automated perimetry in glaucoma patients. J Glaucoma, 17(8), 626-30. PMID: 19092457.

Gardiner, S. K., Swanson, W. H., Demirel, S., McKendrick, A. M., Turpin, A. & Johnson, C. A. (2008). A two-stage neural spiking model of visual contrast detection in perimetry. Vision research, 48(18), 1859-69. PMID: 18602414.

Taravati, P., Woodward, K. R., Keltner, J. L., Johnson, C. A., Redline, D., Carolan, J., Huang, C. Q. & Wall, M. (2008). Sensitivity and specificity of the Humphrey Matrix to detect homonymous hemianopias. Investigative ophthalmology & visual science, 49(3), 924-8. PMID: 18326713.

Huang, C. Q., Carolan, J., Redline, D., Taravati, P., Woodward, K. R., Johnson, C. A., Wall, M. & Keltner, J. L. (2008). Humphrey Matrix perimetry in optic nerve and chiasmal disorders: comparison with Humphrey SITA standard 24-2. Investigative ophthalmology & visual science, 49(3), 917-23. PMID: 18326712.

Zeppieri, M., Demirel, S., Kent, K. & Johnson, C. A. (2008). Perceived spatial frequency of sinusoidal gratings. Optom Vis Sci, 85(5), 318-29. PMID: 18451736.

Monaco, W. A., Kalb, J. T. & Johnson, C. A. (2007). Motion detection in the far peripheral visual field. (Vols. ARL-MR-0684). pp. 1-19. Army Research Laboratory Technical Report.

Brusini, P., Johnson, C. A. (2007). Staging functional damage in glaucoma: Review of different classification methods. Surv Ophthalmol, 52(2), 156-179. PMID: 17355855.

Johnson, C. A. (2007). Short Wavelength Automated Perimetry (SWAP). IPS Website.

Johnson, C. A. (2007). The future for assessing functional visual field loss in glaucoma. Glaucoma Today, 5, 37-39.

Johnson, C. A. (2007). Flicker Perimetry. IPS Website.

Rein, D. B., Wirth, K. E., Johnson, C. A. & Lee, P. P. (2007). Estimating quality-adjusted life year losses associated with visual field deficits using methodological approaches. Ophthalmic Epidemiology, 14, 258-264. PMID: 17896306.

Keltner, J. L., Johnson, C. A., Cello, K. E., Bandermann, S. E., Fan, J., Levine, R. A., Kass, M. A., Gordon, M. O. & Ocular Hypertension Treatment Study Group (2007). Visual field quality control in the Ocular Hypertension Treatment Study (OHTS). Journal of glaucoma, 16(8), 665-9. PMID: 18091452.

Fortune, B., Demirel, S., Zhang, X., Hood, D. C., Patterson, E., Jamil, A., Mansberger, S. L., Cioffi, G. A. & Johnson, C. A. (2007). Comparing multifocal VEP and standard automated perimetry in high-risk ocular hypertension and early glaucoma. Invest Ophthalmol Vis Sci, 48(3), 1173-80. PMID: 17325161.

Mansberger, S. L., Johnson, C. A. & Cioffi, G. A. (2007). The results of screening frequency doubling technology perimetry in different locations of the community. J Glaucoma, 16(1), 73-80. PMID: 17224754.

Mansberger, S. L., Edmunds, B., Johnson, C. A., Kent, K. J. & Cioffi, G. A. (2007). Community visual field screening: prevalence of follow-up and factors associated with follow-up of participants with abnormal frequency doubling perimetry technology results. Ophthalmic Epidemiol, 14(3), 134-40. PMID: 17613848.

Zeppieri, M., Johnson, c. a. (2006). Frequency Doubling Technology (FDT) Perimetry. IPS Web Site.

Schiefer, U., Nowomiejska, K., Krapp, E., Patzold, J. & Johnson, C. A. (2006). K-TRAIN - A computer-based interactive training program with an incorporated certification system for practicing kinetic perimetry: evaluation of acceptance and success rate. Graefe’s Arch Clin Exp Ophthalmol, 244(10), 1300-1309. PMID: 16550404.

Gardiner, S. K., Demirel, S. & Johnson, C. A. (2006). Modeling the sensitivity to variability relationship in perimetry. Vision Res, 46(11), 1732-1745. PMID: 16412491.

Dolderer, J., Vonthein, R., Johnson, C. A., Schiefer, U. & Hart, W. (2006). Scotoma mapping by semi-automated kinetic perimetry – The effects of stimulus properties and the speed of subjects’responses. Acta Ophthalmol Scandinavica, 84(3), 338-344. PMID: 16704695.

Johnson, C. A. (2006). New developments in perimetry, including SITA, ZEST and TOP. In Eye on the Bayou: New Concepts in Glaucoma, Cataract and Neuro-Ophthalmology. Transactions of the 54th Annual Symposium of the New Orleans Academy of Ophthalmology. pp. 137-146. The Hague: IN: Eye on the Bayou: New Concepts in Glaucoma, Cataract and Neuro-Ophthalmology. Transactions of the 54th Annual Symposium of the New Orleans Academy of Ophthalmology. The Hague: Kugler Publications.

Johnson, C. A. (2006). Visual field variability. Optometric Glaucoma Society E-Journal, 1(2), 13.

Johnson, C. A. (2006). Update on Short Wavelength Automated Perimetry (SWAP) and Frequency Doubling Technology (FDT) in glaucoma and neuro-ophthalmologic disorders. In Eye on the Bayou: New Concepts in Glaucoma, Cataract and Neuro-Ophthalmology. Transactions of the 54th Annual Symposium of the New Orleans Academy of Ophthalmology. pp. 123-133. The Hague: IN: Eye on the Bayou: New Concepts in Glaucoma, Cataract and Neuro-Ophthalmology. Transactions of the 54th Annual Symposium of the New Orleans Academy of Ophthalmology. The Hague: Kugler Publications.

Johnson, C. A. (2006). Evaluation of visual field loss in glaucoma: Progression and classification of perimetric damage. In Eye on the Bayou: New Concepts in Glaucoma, Cataract and Neuro-Ophthalmology. Transactions of the 54th Annual Symposium of the New Orleans Academy of Ophthalmology. pp. 147-157. The Hague: IN: Eye on the Bayou: New Concepts in Glaucoma, Cataract and Neuro-Ophthalmology. Transactions of the 54th Annual Symposium of the New Orleans Academy of Ophthalmology. The Hague: Kugler Publications.

Keltner, J. L., Johnson, C. A., Anderson, D. R., Levine, R. A., Fan, J., Cello, K. E., Quigley, H. A., Budenz, D. L., Parrish, R. K., Kass, M. A., Gordon, M. O. & Ocular Hypertension Treatment Study Group (2006). The association between glaucomatous visual fields and optic nerve head features in the Ocular Hypertension Treatment Study. Ophthalmology, 113(9), 1603-12. PMID: 16949445.

Levine, R. A., Demirel, S., Fan, J., Keltner, J. L., Johnson, C. A., Kass, M. A. & Ocular Hypertension Treatment Study Group (2006). Asymmetries and visual field summaries as predictors of glaucoma in the ocular hypertension treatment study. Invest Ophthalmol Vis Sci, 47(9), 3896-903. PMID: 16936102.

Newkirk, M. R., Gardiner, S. K., Demirel, S. & Johnson, C. A. (2006). Assessment of false positives with the Humphrey Field Analyzer II perimeter with the SITA Algorithm. Invest Ophthalmol Vis Sci, 47(10), 4632-7. PMID: 17003461.

Anderson, A. J., Johnson, C. A. (2006). Comparison of the ASA, MOBS and ZEST threshold methods. Vision Res, 46(15), 2403-2411. PMID: 16516258.

Quinn, L. M., Gardiner, S. K., Wheeler, D. T., Newkirk, M. & Johnson, C. A. (2006). Frequency doubling technology perimetry in normal children. Am J Ophthalmol, 142(6), 983-9. PMID: 17046702.

Gardiner, S. K., Anderson, D. R., Fingeret, M., McSoley, J. J. & Johnson, C. A. (2006). Evaluation of decision rules for frequency-doubling technology screening tests. Optom Vis Sci, 83(7), 432-7. PMID: 16840859.

Johnson, C. A. (2006). Clinical Trial Review. Optometric Glaucoma Society E-Journal, 1(2), 16-18.

Fortune, B., Demirel, S., Zhang, X., Hood, D. C. & Johnson, C. A. (2006). Repeatability of normal multifocal VEP: implications for detecting progression. J Glaucoma, 15(2), 131-41. PMID: 16633227.

Gardiner, S. K., Johnson, C. A. & Spry, P. G. (2006). Normal age-related sensitivity loss for a variety of visual functions throughout the visual field. Optom Vis Sci, 83(7), 438-43. PMID: 16840869.

Fingeret, M., Flanagan, J., Johnson, C. A., Cavallerano, A. & Semes, L. (2005). “Glaucoma Without Cupping”. (Vols. 76). pp. 223-224. J Am Optom Assoc.

Cioffi, G. A., Johnson, C. A. (2005). Structural / Functional Relationships in Glaucoma, Chapter 6. In The Essential HRT Primer. pp. 60-69. IN: The Essential HRT Primer. Heidelberg Engineering.

Johnson, C. A. (2005). Early diagnosis with functional tests: Myths and reality. Glaucoma Today, 3, 28-31.

Anderson, A. J., Johnson, C. A., Fingeret, M., Keltner, J. L., Spry, P. G., Wall, M. & Werner, J. S. (2005). Characteristics of the normative database for the Humphrey Matrix perimeter. Invest Ophthalmol Vis Sci, 46(4), 1540-1548. PMID: 15790927.

Wall, M., Johnson, C. A. (2005). Principles and Techniques of the Examination of the Visual Sensory System, Chapter 2. In Walsh and Hoyt’s Textbook of Neuro-Ophthalmology, Chapter 2. pp. 83-149. Philadelphia: IN: Walsh and Hoyt’s Textbook of Neuro-Ophthalmology. Lippincott, Williams and Wilkens.

Spry, P. G., Johnson, C. A., Mansberger, S. L. & Cioffi, G. A. (2005). Psychophysical investigation of ganglion cell loss in early glaucoma. J Glaucoma, 14(1), 11-9. PMID: 15650598.

Johnson, C. A. (2005). Vision requirements for driver's license examiners. Optom Vis Sci, 82(8), 779-89. PMID: 16127345.

Keltner, J. L., Johnson, C. A., Levine, R. A., Fan, J., Cello, K. E., Kass, M. A., Gordon, M. O. & Ocular Hypertension Treatment Study Group (2005). Normal visual field test results following glaucomatous visual field end points in the Ocular Hypertension Treatment Study. Arch Ophthalmol, 123(9), 1201-6. PMID: 16157799.

Gardiner, S. K., Johnson, C. A. & Cioffi, G. A. (2005). Evaluation of the structure-function relationship in glaucoma. Invest Ophthalmol Vis Sci, 46(10), 3712-7. PMID: 16186353.

Mansberger, S. L., Romero, F. C., Smith, N. H., Johnson, C. A., Cioffi, G. A., Edmunds, B., Choi, D. & Becker, T. M. (2005). Causes of visual impairment and common eye problems in Northwest American Indians and Alaska Natives. Am J Public Health, 95(5), 881-6. PMID: 15855469.

Mansberger, S. L., Johnson, C. A., Cioffi, G. A., Choi, D., Krishnadas, S. R., Srinivasan, M., Balamurugan, V., Kim, U., Smith, S. D., Wilkins, J. H. & Gritz, D. C. (2005). Predictive value of frequency doubling technology perimetry for detecting glaucoma in a developing country. J Glaucoma, 14(2), 128-34. PMID: 15741814.

Johnson, C. A., Fingeret, M. & Iwase, I. (2004). Frequency Doubling Technology Perimetry. In R. N. Weinreb , E. L. Greve (Eds.) Glaucoma Diagnosis, Structure and Function. pp. 109-117. IN: Glaucoma Diagnosis, Structure and Function (RN Weinreb and EL Greve, eds). The Hague: Kugler Publications.

Johnson, C. A. (2004). Establishing thresholds with Bayesian forecasting. Review of Optometry, 7-8.

Johnson, C. A. (2004). Frequency doubling technology perimetry for neuro-ophthalmological diseases. (Vols. 88). (10), pp. 1232-1233. Br J Ophthalmol. PMID: 15377539.

Johnson, C. A. (2004). Software upgrades for automated perimetry. Glaucoma Today, 2, 32-34.

Fingeret, M., Johnson, C. A. (2004). Peripheral visual field testing rarely necessary. Primary Care Optometry News, 9, 26-28.

Spry, P. G., Johnson, C. A. (2004). Variability components of standard perimetry. In Henson , Wall (Eds.) Perimetry Update 2002/2003. pp. 37-38. The Hague: Kugler Publications.

Fortunate, B., Goh, K., Demirel, S., Novitsky, K., Mansberger, S. L., Johnson, C. A. & Cioffi, G. A. (2004). Detection of glaucomatous visual field loss using multifocal VEP. In Henson , Wall (Eds.) Perimetry Update 2002/2003. pp. 251-260. IN: Perimetry Update 2002/2003 (Henson and Wall, eds.) The Hague: Kugler Publications.

Ennis, F. A., Blachly, C., Cioffi, G. A., Mansberger, S. L. & Johnson, C. A. (2004). The effect of contour-line drawing criteria on optic disc parameters as measured with the HRT. In Henson , Wall (Eds.) Perimetry Update 2002/2003. pp. 329-330. The Hague: Kugler Publication.

Berson, E. L., Rosner, B., Sandberg, M. A., Weigel-DiFranco, C., Moser, A., Brockhurst, R. J., Hayes, K. C., Johnson, C. A., Anderson, E. J., Gaudio, A. R., Willett, W. C. & Schaefer, E. J. (2004). Clinical trial of docosahexaenoic acid in patients with retinitis pigmentosa receiving vitamin A treatment. Archives of ophthalmology (Chicago, Ill. : 1960), 122(9), 1297-305. PMID: 15364708.

Johnson, C. A., Spry, P. G. (2004). Cumulative defect (Bebie') curves for frequency doubling technology (FDT) perimetry. In Henson , Wall (Eds.) Perimetry Update 2002/2003. pp. 3-12. IN: Perimetry Update 2002/2003 (Henson and Wall, eds.) The Hague: Kugler Publications.

Hood, D. C., Ohri, N., Yang, E. B., Rodarte, C., Zhang, X., Fortune, B. & Johnson, C. A. (2004). Determining abnormal latencies of multifocal visual evoked potentials: a monocular analysis. Doc Ophthalmol, 109(2), 189-99. PMID: 15881265.

Hood, D. C., Zhang, X., Rodarte, C., Yang, E. B., Ohri, N., Fortune, B. & Johnson, C. A. (2004). Determining abnormal interocular latencies of multifocal visual evoked potentials. Doc Ophthalmol, 109(2), 177-87. PMID: 15881264.

Berson, E. L., Rosner, B., Sandberg, M. A., Weigel-DiFranco, C., Moser, A., Brockhurst, R. J., Hayes, K. C., Johnson, C. A., Anderson, E. J., Gaudio, A. R., Willett, W. C. & Schaefer, E. J. (2004). Further evaluation of docosahexaenoic acid in patients with retinitis pigmentosa receiving vitamin A treatment: subgroup analyses. Archives of ophthalmology (Chicago, Ill. : 1960), 122(9), 1306-14. PMID: 15364709.

Sample, P. A., Araie, M., Chauhan, B. C., Heijl, A. & Johnson, C. A. (2004). Comparison of methods for measurement of function. In R. N. Weinreb , E. L. Greve (Eds.) Glaucoma Diagnosis, Structure and Function. pp. 70-74. IN: Glaucoma Diagnosis, Structure and Function (RN Weinreb and EL Greve , eds.) The Hague: Kugler Publications.

Vesti, E., Chauhan, B. C. & Johnson, C. A. (2004). Comparison of different methods for detecting glaucomatous visual field progression. In Henson , Wall (Eds.) Perimetry Update 2002/2003. pp. 39-40. IN: Perimetry Update 2002/2003 (Henson and Wall, eds.) The Hague: Kugler Publications.

Fortune, B., Zhang, X., Hood, D. C., Demirel, S. & Johnson, C. A. (2004). Normative ranges and specificity of the multifocal VEP. Doc Ophthalmol, 109(1), 87-100. PMID: 15675203.

Vesti, E., Johnson, C. A. & Chauhan, B. C. (2003). Comparison of different methods for detecting glaucomatous visual field progression. Invest Ophthalmol Vis Sci, 44, 3873-3879.

Johnson, C. A. (2003). Frequency Doubling Technology (FDT) Perimetry. Glaucoma Management News, 1, 1,7,8.

Johnson, C. A. (2003). Update on perimetry: New Developments. In Glaucoma in the New Millennium: Proceedings of the 49th Annual Symposium of the New Orleans Academy of Ophthalmology. pp. 185-206. The Hague: IN: Glaucoma in the New Millennium: Proceedings of the 49th Annual Symposium of the New Orleans Academy of Ophthalmology. The Hague: Kugler Publications.

Spry, P. G., Johnson, C. A., McKendrick, A. M. & Turpin, A. (2003). Measurement error of visual field tests in glaucoma. Br J Ophthalmol, 87(1), 107-112. PMID: 12488273.

Keltner, J. L., Johnson, C. A., Cello, K. E., Bandermann, S. E., Edwards, M. A., Kass, M. A., Gordon, M. O. & The Ocular Hypertension Treatment Study Group (2003). Classification of visual field abnormalities in the Ocular Hypertension Treatment Study. Arch Ophthalmol, 121(5), 643-650. PMID: 12742841.

Johnson, C. A. (2003). The use of a visual illusion to detect glaucoma: Frequency Doubling Technology Perimetry. In Andre , Owens , Harvey (Eds.) Visual Perception: The Influence of H. W. Leibowitz. IN: Visual Perception: The Influence of H. W. Leibowitz (Andre, Owens, Harvey, eds.) American Psychological Association Books.

Johnson, C. A. (2003). Questions directed to Dr. Johnson in his absence. In Glaucoma in the New Millenium: Proceedings of the 49th Annual Symposium of the New Orleans Academy of Ophthalmology. pp. 207-209. The Hague: IN: Glaucoma in the New Millenium: Proceedings of the 49th Annual Symposium of the New Orleans Academy of Ophthalmology. The Hague: Kugler Publications.

Turpin, A., McKendrick, A. M., Johnson, C. A. & Vingrys, A. J. (2003). Properties of perimetric threshold estimates from full threshold, ZEST, and SITA-like strategies, as determined by computer simulation. Invest Ophthalmol Vis Sci, 44(11), 4787-95. PMID: 14578400.

Fingeret, M., Johnson, C. A. (2003). The new Humphrey Matrix FDT. Optometric Management.

Beck, R. W., Moke, P. S., Turpin, A. H., Ferris, F. L., San Giovanni, J. P., Johnson, C. A., Birch, E. E., Chandler, D. L., Cox, T. A., Blair, R. C. & Kraker, R. T. (2003). A computerized method of visual acuity testing: Adaptation of the early treatment of diabetic retinopathy study testing protocol. Am J Ophthalmol, 135, 194-205.

Anderson, A. J., Johnson, C. A. (2003). Anatomy of a supergroup: does a criterion of normal perimetric performance generate a supernormal population?. Invest Ophthalmol Vis Sci, 44(11), 5043-8. PMID: 14578433.

Anderson, A. J., Johnson, C. A. (2003). Frequency-doubling technology perimetry and optical defocus. Invest Ophthalmol Vis Sci, 44(9), 4147-52. PMID: 12939339.

McKendrick, A. M., Anderson, A. J., Johnson, C. A. & Fortune, B. (2003). Appearance of the frequency doubling stimulus in normal subjects and patients with glaucoma. Invest Ophthalmol Vis Sci, 44(3), 1111-6. PMID: 12601037.

Johnson, C. A., Sample, P. A., Zangwill, L. M., Vasile, C. G., Cioffi, G. A., Liebmann, J. R. & Weinreb, R. N. (2003). Structure and function evaluation (SAFE): II. Comparison of optic disk and visual field characteristics. Am J Ophthalmol, 135(2), 148-54. PMID: 12566017.

Anderson, A. J., Johnson, C. A. (2003). Frequency-doubling technology perimetry. Ophthalmology clinics of North America, 16(2), 213-25. PMID: 12809159.

Brigell, M., Johnson, C. A. (2002). Visual fields and tiagabine: a quandary. (Vols. 11). pp. 139-140. Siezure.

Johnson, C. A., Takahashi, G. & Demirel, S. (2002). The ability of frequency doubling technology (FDT) perimetry to predict the onset of glaucomatous visual field loss for standard automated perimetry. Journal of Vision, 2, 100.

Vesti, E., Spry, P. G., Chauhan, B. C. & Johnson, C. A. (2002). Sensitivity differences between real-patient and computer-stimulated visual fields. J Glaucoma, 11(1), 35-45. PMID: 11821688.

Johnson, C. A. (2002). Testing Visual Function in Glaucoma, Chapter 13. In Morrison , Pollack (Eds.) Glaucoma: Science and Practice. pp. 125-147. New York: IN: Glaucoma: Science and Practice (Morrison and Pollack, eds.) New York: Thieme Publishers.

Johnson, C. A. (2002). “Work and the Eye” by Rachel North. Cornea, 21, 437-438.

McKendrick, A. M., Cioffi, G. A. & Johnson, C. A. (2002). Short-wavelength sensitivity deficits in patients with migraine. Arch Ophthalmol, 120(2), 154-61. PMID: 11831917.

Spry, P. G., Johnson, C. A., Bates, A. B., Turpin, A. & Chauhan, B. C. (2002). Spatial and temporal processing of threshold data for detection of progressive glaucomatous visual field loss. Arch Ophthalmol, 120(2), 173-80. PMID: 11831919.

Spry, P. G., Johnson, C. A. (2002). Identification of progressive glaucomatous visual field loss. Surv Ophthalmol, 47(2), 158-73. PMID: 11918896.

Demirel, S., Takahashi, G. & Johnson, C. A. (2002). A comparison of visual field indices for standard FDT and a spatially finer testing pattern. Journal of Vision, 2, 96.

McKendrick, A. M., Johnson, C. A. (2002). Temporal Properties of Vision, Section 9: Visual Perception, Chapter 20. In A. Alm , P. Kaufmann (Eds.) Adler’s Physiology of the Eye, Section 9: Visual Perception, Chapter 20. (10th ed), pp. 511-530. St Louis: IN: Adler’s Physiology of the Eye, 10th ed (Alm A, Kaufmann P, eds.) St Louis: CV Mosby.

Fortune, B., Johnson, C. A. (2002). Decline of photopic multifocal electroretinogram responses with age is due primarily to preretinal optical factors. J Opt Soc Am A Opt Image Sci Vis, 19(1), 173-84. PMID: 11778721.

Demirel, S., Johnson, C. A. (2002). Prävalenz und inzidenz der mittels kurzwelliger Blau/Gelb-Perimetrie bestimmten Gesichtsfelddefekte bei Patienten mit okulärer Hypertonie. Search on Glaucoma, 10, 29-33.

Johnson, C. A., Sample, P. A. (2002). Perimetry and Visual Field Testing, Section 9: Visual Perception, Chapter 22. In A. Alm , P. Kaufmann (Eds.) Adler’s Physiology of the Eye, 10th ed.. (10th ed), pp. 552-577. St Louis: IN: Adler’s Physiology of the Eye (Alm A, Kaufmann P, eds) , Section 9: Visual Perception, Chapter 22. St Louis: CV Mosby.

Spry, P., Johnson, C. A. (2002). Advances in Automated Perimetry. Focal Points: Clinical Modules for Ophthalmologists, American Academy of Ophthalmology, (10), 1-12.

Johnson, C. A. (2002). Book Review of "Work and the Eye" by Rachel North. Cornea, 21, 437-438.

Anderson, A. J., Johnson, C. A. (2002). Mechanisms isolated by frequency-doubling technology perimetry. Invest Ophthalmol Vis Sci, 43(2), 398-401. PMID: 11818383.

Johnson, C. A., Sample, P. A., Cioffi, G. A., Liebmann, J. R. & Weinreb, R. N. (2002). Structure and function evaluation (SAFE): I. criteria for glaucomatous visual field loss using standard automated perimetry (SAP) and short wavelength automated perimetry (SWAP). Am J Ophthalmol, 134(2), 177-85. PMID: 12140023.

Gordon, M. O., Beiser, J. A., Brandt, J. D., Heuer, D. K., Higginbotham, E. J., Johnson, C. A., Keltner, J. L., Miller, J. P., Parrish, R. K., Wilson, M. R. & Kass, M. A. (2002). The Ocular Hypertension Treatment Study: baseline factors that predict the onset of primary open-angle glaucoma. Arch Ophthalmol, 120(6), 714-20; discussion 829-30. PMID: 12049575.

Spry, P. G., Johnson, C. A. (2002). Within-test variability of frequency-doubling perimetry using a 24-2 test pattern. J Glaucoma, 11(4), 315-20. PMID: 12169968.

Budenz, D. L., Rhee, P., Feuer, W. J., McSoley, J., Johnson, C. A. & Anderson, D. R. (2002). Sensitivity and specificity of the Swedish interactive threshold algorithm for glaucomatous visual field defects. Ophthalmology, 109(6), 1052-8. PMID: 12045043.

Fortune, B., Bearse, M. A., Cioffi, G. A. & Johnson, C. A. (2002). Selective loss of an oscillatory component from temporal retinal multifocal ERG responses in glaucoma. Invest Ophthalmol Vis Sci, 43(8), 2638-47. PMID: 12147597.

Ennis, F. A., Johnson, C. A. (2002). Are high-pass resolution perimetry thresholds sampling limited or optically limited?. Optom Vis Sci, 79(8), 506-11. PMID: 12199543.

Anderson, A. J., Johnson, C. A. (2002). Effect of dichoptic adaptation on frequency-doubling perimetry. Optom Vis Sci, 79(2), 88-92. PMID: 11868852.

Budenz, D. L., Rhee, P., Feuer, W. J., McSoley, J., Johnson, C. A. & Anderson, D. R. (2002). Comparison of glaucomatous visual field defects using standard full threshold and Swedish interactive threshold algorithms. Arch Ophthalmol, 120(9), 1136-41. PMID: 12215086.

Wilson, M. R., Kosoko, O., Cowan, C. L., Sample, P. A., Johnson, C. A., Haynatzki, G., Enger, C. & Crandall, D. (2002). Progression of visual field loss in untreated glaucoma patients and glaucoma suspects in St. Lucia, West Indies. Am J Ophthalmol, 134(3), 399-405. PMID: 12208252.

Sample, P. A., Goldbaum, M. H., Chan, K., Boden, C., Lee, T. W., Vasile, C., Boehm, A. G., Sejnowski, T., Johnson, C. A. & Weinreb, R. N. (2002). Using machine learning classifiers to identify glaucomatous change earlier in standard visual fields. Invest Ophthalmol Vis Sci, 43(8), 2660-5. PMID: 12147600.

Anderson, A. J., Johnson, C. A. (2002). Effect of spatial waveform on apparent spatial frequency. Vision Res, 42(6), 725-32. PMID: 11888538.

Brigell, M., Johnson, C. A. (2002). Visual field defects. (Vols. 11). (2), pp. 139-40. Seizure. PMID: 11945104.

Kass, M. A., Heuer, D. K., Higginbotham, E. J., Johnson, C. A., Keltner, J. L., Miller, J. P., Parrish, 2nd, R. K., Wilson, M. R. & Gordon, M. O. (2002). The Ocular Hypertension Treatment Study: a randomized trial determines that topical ocular hypotensive medication delays or prevents the onset of primary open-angle glaucoma. Archives of ophthalmology (Chicago, Ill. : 1960), 120(6), 701-13; discussion 829-30. PMID: 12049574.

Turpin, A., McKendrick, A. M., Johnson, C. A. & Vingrys, A. J. (2002). Development of efficient threshold strategies for frequency doubling technology perimetry using computer simulation. Invest Ophthalmol Vis Sci, 43(2), 322-31. PMID: 11818373.

Turpin, A., McKendrick, A. M., Johnson, C. A. & Vingrys, A. J. (2002). Performance of efficient test procedures for frequency-doubling technology perimetry in normal and glaucomatous eyes. Invest Ophthalmol Vis Sci, 43(3), 709-15. PMID: 11867588.

Johnson, C. A., Keltner, J. L., Cello, K. E., Edwards, M., Kass, M. A., Gordon, M. O., Budenz, D. L., Gaasterland, D. E. & Werner, E. (2002). Baseline visual field characteristics in the ocular hypertension treatment study. Ophthalmology, 109(3), 432-7. PMID: 11874743.

McKendrick, A. M., Johnson, C. A., Anderson, A. J. & Fortune, B. (2002). Elevated vernier acuity thresholds in glaucoma. Invest Ophthalmol Vis Sci, 43(5), 1393-9. PMID: 11980852.

Johnson, C. A. (2002). Recent developments in automated perimetry in glaucoma diagnosis and management. Curr Opin Ophthalmol, 13(2), 77-84. PMID: 11880719.

Spry, P. G., Johnson, C. A., McKendrick, A. M. & Turpin, A. (2001). Variability components of standard automated perimetry and frequency doubling technology perimetry. Invest Ophthalmol Vis Sci, 42(6), 1404-1410. PMID: 11328758.

Savage, G. L., Johnson, C. A. & Howard, D. L. (2001). A comparison of non-invasive objective and subjective measurements of the optical density of human ocular media. Optom Vis Sci, 78, 386-395. PMID: 11444627.

Johnson, C. A. (2001). Diagnosing and following glaucoma: Frequency Doubling Technology (FDT) Perimetry. Glaucoma Perspectives in Practice, 3(1), 7.

Moke, P. S., Turbin, A. H., Beck, R. W., Holmes, J. M., Repka, M. X., Birch, E. E., Hertle, R. W., Kraker, R. T., Miller, J. M. & Johnson, C. A. (2001). Computerized method of visual acuity testing: adaptation of the amblyopia treatment study visual acuity testing protocol11Additional technical information about the Electronic Visual Acuity Tester and the Amblyopia Treatment Study visual acuity testing protocol application can be obtained from the lead author (pmoke@jaeb.org). American Journal of Ophthalmology, 132, 903-909.

Vesti, E., Spry, P. G., Chauhan, B. C. & Johnson, C. A. (2001). Sensitivity differences between real-patient and computer-simulated visual fields. In M. Wall , R. P. Mills (Eds.) Perimetry 2000/2001. pp. 357. The Hague: Kugler Publications.

Turpin, A., Johnson, C. A. & Spry, P. G. (2001). Development of a maximum likelihood procedure for Short Wavelength Automated Perimetry (SWAP). In M. Wall , R. P. Mills (Eds.) Perimetry Update 2000/2001. pp. 139-147. The Hague: Kugler Publications.

Spry, P. G., Gibbs, M. L., Johnson, C. A. & Howard, D. L. (2001). Frequency Doubling Perimetry using a liquid crystal display. Am J Ophthalmol, 131(3), 332-338. PMID: 11239865.

Spry, P. G., Johnson, C. A., Bates, A. B. & Chauhan, B. C. (2001). Discriminatory power of pointwise linear regression for detection of glaucomatous visual field defect progression. In M. Wall , R. P. Mills (Eds.) Perimetry Update 2000/2001. pp. 363-369. The Hague: Kugler Publications.

Fortune, B., Johnson, C. A. & Cioffi, G. A. (2001). The topographic relationship between multifocal electroretinographic and behavioral perimetric measures of function in glaucoma. Optometry and vision science, 78(4), 206-14. PMID: 11349928.

Spry, P. G., Johnson, C. A. (2001). Senescent changes of the normal visual field: an age-old problem. Optom Vis Sci, 78(6), 436-441. PMID: 11444634.

Demirel, S., Johnson, C. A. (2001). Incidence and prevalence of short wavelength automated perimetry deficits in ocular hypertensive patients. American journal of ophthalmology, 131(6), 709-15. PMID: 11384565.

Fingeret, M., Smith, E., Reminick, L. & Johnson, C. A. (2001). Frequency doubling perimetry as a screening tool in the general ophthalmic elderly population. Kugler Publications, 271-275.

Johnson, C. A. (2001). Psychophysical measurement of glaucomatous damage. Survey of Ophthalmology, 45(Suppl 3), S313-S318. PMID: 11377455.

Sample, P. A., Johnson, C. A. (2001). Functional assessment of glaucoma. J Glaucoma Supplement, 20((5:Suppl 1)), S49-S52. PMID: 11890275.

Johnson, C. A., Cioffi, G. A., Liebmann, J. R., Sample, P. A., Zangwill, L. & Weinreb, R. N. (2000). The relationship between structural and functional alterations in glaucoma: A review. Seminars in Ophthalmology, 15(4), 221-233. PMID: 17585436.

Johnson, C. A. (2000). What is progression of visual field loss? Chapter 7. In Glaucoma in the 21st Century. pp. 43-48. London: IN: Glaucoma in the 21st Century. London: Harcourt Health Communications.

Cello, K. E., Nelson-Quigg, J. M. & Johnson, C. A. (2000). Frequency Doubling Technology (FDT) perimetry for detection of glaucomatous visual field loss. Am J Ophthalmol, 129(3), 314-322. PMID: 10704546.

Fortune, B., Cioffi, G. A., Johnson, C. A., Kondo, Y., Mochizuki, K. & Kitazawa, Y. (2000). The relationship between multifocal electroretinography and standard automated perimetry findings in normal-tension glaucoma, Chapter 11. In Glaucoma in the 21st Century. pp. 73-78. London: IN: Glaucoma in the 21st Century. London: Harcourt Health Communications.

Johnson, C. A. (2000). Screening fields on the cutting edge. Promising developments designed to improve your ability to detect glaucoma at the early stages. (Vols. 137). pp. 1-5. Review of Optometry.

Cioffi, G. A., Liebmann, J. M., Johnson, C. A. & Weinreb, R. N. (2000). Structural-functional relationships of the optic nerve in glaucoma. (Vols. 9). pp. 3-4. J Glaucoma.

Keltner, J. L., Johnson, C. A., Quigg, J. M., Cello, K. E., Kass, M. A. & Gordon, M. O. (2000). Confirmation of visual field abnormalities in the Ocular Hypertension Treatment Study. Ocular Hypertension Treatment Study Group. Archives of ophthalmology (Chicago, Ill. : 1960), 118(9), 1187-94. PMID: 10980763.

Johnson, C. A., Cello, K. E. & Nelson-Quigg, J. M. (2000). Reply to Dr.Brusini “Frequency Doubling Technology perimetry for detection of glaucomatous visual field loss”. (Vols. 130). pp. 860=861. Am J Ophthalmol.

Spry, P. G., Bates, A. B., Johnson, C. A. & Chauhan, B. C. (2000). Simulation of longitudinal threshold visual field data. Invest Ophthalmol Vis Sci, 41, 2192-2200. PMID: 10892862.

Demirel, S., Johnson, C. A. (2000). Isolation of short-wavelength sensitive mechanisms in normal and glaucomatous visual field regions. J Glaucoma, 9(1), 63-73. PMID: 10708234.

Anderson, D., Chauhan, B., Johnson, C., Katz, J., Patella, M. & Drance, S. (2000). Criteria for progression of glaucoma in clinical management and outcome studies. Am J Ophthalmol, 130, 827-829.

Bosworth, C. F., Sample, P. A., Johnson, C. A. & Weinreb, R. N. (2000). Current practice with standard automated perimetry. Seminars in Ophthalmology, 15(4), 172-187. PMID: 17585432.

Johnson, C. A. (2000). New Developments in Perimetry, Chapter 18. In Fingeret , Lewis (Eds.) Primary Care of the Glaucomas. pp. 271-294. New York: IN: Primary Care of the Glaucomas (Fingeret and Lewis, eds.) New York: McGraw-Hill.

Cioffi, G. A., Mansberger, S., Spry, P., Johnson, C. & Van Buskirk, E. M. (2000). Frequency doubling perimetry and the detection of eye disease in the community. Transactions of the American Ophthalmologic Society, 98, 195-199. PMID: 11190023.

Spry, P., Johnson, C. A. (2000). Assessing visual function in clinical practice. Ophthalmology Clinics of North America, 13(3), 361-382.

Nelson-Quigg, J. M., Cello, K. E. & Johnson, C. A. (2000). Predicting binocular visual field sensitivity from monocular visual field results. Invest Ophthalmol Vis Sci, 41(8), 2212-2221. PMID: 10892865.

McKendrick, A. M., Johnson, C. A. (2000). Aliasing for rapidly counterphasing stimuli: a failure to demonstrate an M-cell sampling limit to resolution. J Opt Soc Am A Opt Image Sci Vis, 17, 1703-1712.

Johnson, C. A. (1999). Determination of glaucomatous visual field progression using standard automated perimetry and specialized visual field test procedures. Uppsala: The Gullstrand Foundation.

Johnson, C. A., Cioffi, G. A. & Van Buskirk, E. M. (1999). Frequency doubling technology perimetry using a 24-2 stimulus presentation pattern. Optom Vis Sci, 76(8), 571-581. PMID: 10472963.

Johnson, C. A., Cioffi, G. A. & Van Buskirk, E. M. (1999). Evaluation of two screening tests for frequency doubling technology perimetry. In Perimetry Update 1998/1999. pp. 103-109. Amsterdam: Kugler Publications.

Johnson, C. A. (1999). California Department of Forestry and Fire Protection: Report and Recommendations. pp. 1-61. California State Personnel Board Technical Report.

Keltner, J. L., Johnson, C. A., Spurr, J. O., Beck, R. W. & The Optic Neuritis Study Group (1999). Comparison of central and peripheral visual field properties in the Optic Neuritis Treatment Trial (ONTT). Am J Ophthalmol, 128(5), 543-553. PMID: 10577521.

Demirel, S., Thibos, L. A. & Johnson, C. A. (1999). Age and eccentricity effects on grating detection and grating resolution automated perimetry. In Perimetry Update 1998/1999. pp. 229-239. Amsterdam: Kugler Publications.

Johnson, C. A. (1999). Psychophysical endpoints. (Vols. 9). (Suppl 1), pp. S48-S51. Eur J Ophthalmol. PMID: 10230608.

Chauhan, B. C., Johnson, C. A. (1999). Test-retest variability characteristics of Frequency-Doubling Perimetry and conventional perimetry in glaucoma patients and normal subjects. Invest Ophthalmol Vis Sci, 40(3), 648-656. PMID: 10067968.

Fingeret, M., Johnson, C. A. (1999). The changing nature of glaucoma. (Vols. 76). pp. 515. Optom Vis Sci.

Sullivan, P., Cioffi, G. A., Wang, L., Johnson, C. A., Van Buskirk, E. M., Sherman, K. R. & Bacon, D. R. (1999). The influence of ocular pulsatility on scanning laser doppler flowmetry. Am J Ophthalmol, 128, 81-87.

Adams, C. W., Bullimore, M. A., Wall, M., Fingeret, M. & Johnson, C. A. (1999). Normal aging effects for frequency doubling technology perimetry. Optom Vis Sci, 76(8), 582-587. PMID: 10472964.

Johnson, C. A., Keltner, J. L. (1998). Principles and Techniques of the Examination of the Visual Sensory System, Chapter 7. In Miller , Newman (Eds.) Walsh and Hoyt’s Textbook of Neuro-Ophthalmology. pp. 153-235. IN: Walsh and Hoyt’s Textbook of Neuro-Ophthalmology (Miller and Newman, eds..

Wall, M., Johnson, C. A., Kutzko, K. E., Nguyen, R., Brito, C. & Keltner, J. L. (1998). Long- and short-term variability of automated perimetry results in patients with optic neuritis and healthy subjects. Arch Ophthalmol, 116(1), 53-61. PMID: 9445208.

Johnson, C. A., Wall, M., Fingeret, M. & Lalle, P. (1998). A Primer for Frequency Doubling Technology Perimetry. Skaneateles, New York: Skaneateles, New York: Welch Allyn.

Johnson, C. A., Samuels, S. J. (1997). Screening for glaucomatous visual field loss using the frequency-doubling contrast test. Invest Ophthalmol Vis Sci, 38(2), 413-425. PMID: 9040475.

Lynch, S., Johnson, C. A. & Demirel, S. (1997). Is early damage in glaucoma selective for a particular cell type or pathway?. In Perimetry Update, 1996/1997. pp. 253-261. Kugler Publications.

Johnson, C. A., Demirel, S. (1997). The role of spatial and temporal factors in frequency doubling perimetry. In Perimetry Update, 1996/1997. pp. 13-19. Amsterdam: Kugler Publications.

Demirel, S., Johnson, C. A., Fendrich, R. & Vingrys, A. J. (1997). The slope of frequency-of-seeing curves in normal, amblyopic and pathologic vision. J Opt Soc Am Technical Digest Series, 244-247.

Gutierrez, P., Wilson, M. R., Johnson, C. A., Gordon, M., Cioffi, G. A., Ritch, R., Sherwood, M., Curnow, B. & Mangione, C. M. (1997). Influence of Glaucomatous Visual Field Loss on Health-Related Quality of Life. Archives of Ophthalmology, 115, 777-784.

Sample, P. A., Johnson, C. A., Haegerstrom-Portnoy, G. & Adams, A. J. (1997). Optimale parameter Fur die automatische Kurzwellen-Perimetrie. Search on Glaucoma, 5, 52-56.

Johnson, C. A., Nelson-Quigg, J. M. & Morse, L. M. (1997). Wavelength dependent lens transmission properties in diabetics and non-diabetics. In V. Lakshminarayanan (Eds.) Basic and Clinical Applications of Vision Science. pp. 217-220. Amsterdam: Kluwer Publishers.

Johnson, C. A. (1997). Visual function measures in experimental glaucoma. (Vols. 6). pp. 351-352. J Glaucoma.

Johnson, C. A., Brintz, N. (1997). Entry-level vision standards for Academic Teachers in the California Department of the Youth Authority. In California Department of the Youth Authority Vision Study: Final Report. pp. 1-103. California Youth Authority.

Demirel, S., Johnson, C. A. (1997). Validation of a risk model for glaucomatous loss: Application to standard automated perimetry and SWAP. In Perimetry Update, 1996/1997. pp. 275-279. Kugler Publications.

Gutierrez, P., Wilson, M. R., Johnson, C., Gordon, M., Cioffi, G. A., Ritch, R., Sherwood, M., Meng, K. & Mangione, C. M. (1997). Influence of glaucomatous visual field loss on health-related quality of life. Archives of ophthalmology (Chicago, Ill. : 1960), 115(6), 777-84. PMID: 9194730.

Johnson, C. A., Cioffi, G. A., Drance, S. M., Gaasterland, D., Mills, R. P., Ashburn, F., Hnik, P. & Van Coevorden, R. E. (1997). A multicenter comparison study of the Humphrey Field Analyzer I and the Humphrey Field Analyzer II. Ophthalmology, 104(11), 1910-1917. PMID: 9373125.

Yoshiyama, K. K., Johnson, C. A. (1997). Which method of flicker perimetry is most effective for detection of glaucomatous visual field loss?. Invest Ophthalmol Vis Sci, 38(11), 2270-2277. PMID: 9344350.

Johnson, C. A., Brintz, N. (1996). Entry-level vision standards for Parole Agent, California Youth Authority. In California Youth Authority Technical Report. pp. 1-256. California Youth Authority.

Sample, P. A., Johnson, C. A., Haegerstrom-Portnoy, G. & Adams, A. J. (1996). Optimum parameters for short-wavelength automated perimetry. J Glaucoma, 5(6), 375-383. PMID: 8946293.

Johnson, C. A. (1996). Ocular hypertension treatment study - determination of progression. In D. Anderson , S. Drance (Eds.) Encounters in Glaucoma 3: How to ascertain progression and outcome. (Vols. 3). pp. 165-182. New York: Kugler Publications.

Johnson, C. A. (1996). Diagnostic value of Short Wavelength Automated Perimetry (SWAP). Curr Opin Ophthalmol, 7(2), 54-58. PMID: 10163323.

Johnson, C. A. (1996). Perimetry and Visual Field Testing. In K. Zadnik (Eds.) The Optometric Examination: Measurements and Findings. Orlando: IN: The Optometric Examination: Measurements and Findings (Zadnik K ed). Orlando: WB Saunders.

Keltner, J. L., Johnson, C. A., Spurr, J. O., Beck, R. W. & The Optic Neuritis Study Group, (1996). The Optic Neuritis Treatment Trial in the United States. Nippon Ganka Gakkai Zasshi (Japanese Journal of Ophthalmology), 101(Suppl (Centenary of the Japanese Ophthalmological Society)), S 17-04-07.

Johnson, C. A. (1996). The basis for early losses of visual function in glaucoma. Search on Glaucoma (German), 4, 4-7.

Demirel, S., Johnson, C. A. (1996). Short Wavelength Automated Perimetry (SWAP). Optometry Today, 30-32.

Demirel, S., Johnson, C. A. (1996). Short Wavelength Automated Perimetry (SWAP) in ophthalmic practice. J Am Optom Assoc, 67(8), 451-456. PMID: 8888875.

Johnson, C. A. (1996). Standardizing the measurement of visual fields for clinical research: Guidelines from the Eye Care Technology Forum. Ophthalmology, 103(1), 186-189. PMID: 8628553.

Keltner, J. L., Johnson, C. A. (1995). Short-Wavelength Automated Perimetry (SWAP) in neuro-ophthalmologic disorders. Arch Ophthalmol, 113(4), 475-481. PMID: 7710398.

Johnson, C. A. (1995). The Glenn A. Fry Award Lecture: Early losses of visual function in glaucoma. Optom Vis Sci, 72(6), 359-370. PMID: 7566898.

Fendrich, R., Wessinger, C. M., Marshall, D. & Johnson, C. A. (1995). Stabilized image perimetry: Evaluating the influence of eye movements on perimetry data. Vision Science and its Applications, J Opt Soc Am Technical Digest Series, 254-257.

Bedell, H. E., Johnson, C. A. (1995). The effect of flicker on foveal and peripheral thresholds for oscillatory motion. Vision Res, 35, 2179-2189.

Johnson, C. A., Keltner, J. L. (1995). Short Wavelength Automated Perimetry (SWAP) in optic neuritis. In R. P. Mills , M. Wall (Eds.) Perimetry Update 1994/95. pp. 91-96. Amsterdam: Kugler Publications.

Johnson, C. A., Marshall, D. & Eng, K. (1995). Displacement threshold perimetry in glaucoma using a Macintosh computer system and a 21 inch monitor. In R. P. Mills , M. Wall (Eds.) Perimetry Update 1994/95. pp. 103-110. Amsterdam: Kugler Publications.

Johnson, C. A., Brandt, J. D., Khong, A. M. & Adams, A. J. (1995). Short wavelength automated perimetry (SWAP) in low-, medium-, and high-risk ocular hypertensive eyes: Initial baseline results. Arch Ophthalmol, 113(1), 70-76. PMID: 7826296.

Johnson, C. A., Marshall, D. (1995). Aging effects for opponent mechanisms in the central visual field. Optom Vis Sci, 72(2), 75-82. PMID: 7753531.

Johnson, C. A., Casson, E. J. (1995). Effects of luminance, contrast and blur on visual acuity. Optom Vis Sci, 72, 864-869. PMID: 8749333.

Johnson, C. A. (1995). Occupational Psychophysics: Establishing job-related vision standards. Vision Science and its Applications, J Opt Soc Am Technical Digest Series, 242-245.

Johnson, C. A., Day, T. (1994). Enter Level Vision Standards for Lifeguards. pp. 1-226. California Department of Parks and Recreation Technical Report.

Keltner, J. L., Johnson, C. A., Spurr, J. O., Beck, R. W. & The Optic Neuritis Study Group (1994). Visual field profile of optic neuritis: One-year follow-up in the Optic Neuritis Treatment Trial. Arch Ophthalmol, 112(7), 946-953. PMID: 8031275.

Johnson, C. A., Day, T. (1994). Enter Level Vision Standards for Park Rangers. pp. 1-234. California Department of Parks and Recreation Technical Report.

Johnson, C. A., Day, T. (1994). Entry Level Vision Standards for Fish and Game Wardens. pp. 1-224. California Department of Fish and Game Technical Report.

Chauhan, B. C., Johnson, C. A. (1994). Evaluating and optimizing test strategies in automated perimetry. Journal of Glaucoma, 3(Suppl 1), S73-S81. PMID: 19920592.

Johnson, C. P., Persinger, M. A. (1994). The sensed presence may be facilitated by interhemispheric intercalation: relative efficacy of the Mind's Eye, Hemi-Sync Tape, and bilateral temporal magnetic field stimulation. Perceptual and motor skills, 79(1 Pt 1), 351-4. PMID: 7991330.

Johnson, C. A., Brandt, J. D., Khong, A. M. & Adams, A. J. (1994). Short-wavelength sensitivity losses in low, moderate and high risk ocular hypertensives: Initial baseline results in 250 subjects. Vision Science and its Applications, J Opt Soc Am Technical Digest Series, 2, 290-293.

Johnson, C. A., Brintz, N. (1994). Entry Level Vision Standards for Group Supervisors and Youth Counselors. pp. 1-280. California Department of the Youth Authority Technical Report.

Johnson, C. A. (1994). Evaluation of visual function, Chapter 17. In Tasman , Jaeger (Eds.) Duane’s Foundations of Clinical Ophthalmology. pp. 1-20. Philadelphia: IN: Duane’s Foundations of Clinical Ophthalmology. (Tasman and Jaeger, eds.) Philadelphia: Lippincott.

Johnson, C. A. (1994). Selective vs nonselective losses in glaucoma. Journal of Glaucoma, 3(Suppl 1), S32-S44. PMID: 19920586.

Lewis, R. A., Johnson, C. A. & Adams, A. J. (1993). Automated static visual field testing and perimetry of short-wavelength-sensitive (SWS) mechanisms in patients with asymmetric intraocular pressures. Graefe's Arch Clin Exp Ophthalmology, 231, 274-278.

Johnson, C. A., Nelson-Quigg, J. M. (1993). A prospective three-year study of response properties of normal subjectss and patients during automated perimetry. Ophthalmology, 100(2), 269-274. PMID: 8437837.

Lewis, R. A., Johnson, C. A. & Adams, A. J. (1993). Automated perimetry and short-wavelength-sensitivity (SWS) in patients with asymmetric intraocular pressures. Graefe's Arch Clin Exp Ophthalmol, 231(5), 274-278. PMID: 8319917.

Maddock, R. J., Casson, E. J., Lott, L. A., Carter, C. S. & Johnson, C. A. (1993). Benzodiazepine effects on flicker sensitivity: Role of stimulus frequency and size. Progress in Neuropsychopharmacology and Biological Psychiatry, 17, 955-970.

Johnson, C. A., Adams, A. J. & Casson, E. J. (1993). Blue-on-yellow perimetry: A five year overview. In R. P. Mills (Eds.) Perimetry Update 1992/93. pp. 459-466. New York: Kugler Publications.

Johnson, C. A., Adams, A. J., Casson, E. J. & Brandt, J. D. (1993). Blue-on-yellow perimetry can predict the development of glaucomatous visual field loss. Arch Ophthalmol, 111(5), 645-650. PMID: 8489447.

Johnson, C. A. (1993). Final Report on Entry Level Vision Standards for Licensing and Registration Examiners in the California Department of Motor Vehicles. pp. 1-114. California Department of Motor Vehicles Technical Report.

Johnson, C. A., Groome, W. R. (1993). Final Report on Entry Level Drawbridge Operator Vision Standards for the California Department of Transportation. pp. 1-44. California State Personnel Board Test Validation and Construction Division Technical Report.

Khong, A. M., Mannis, M. J., Plotnik, R. D. & Johnson, C. A. (1993). Computerized topographic analysis of the healing graft after penetrating keratoplasty for keratoconus. Arch Ophthalmol, 115, 209-215.

Casson, E. J., Johnson, C. A. (1993). Flicker perimetry in ocular hypertensives: Evidence for high and low sensitivity defects. Noninvasive Assessment of the Visual System, J Opt Soc Am Technical Digest Series, 3, 304-307.

Johnson, C. A., Adams, A. J., Casson, E. J. & Brandt, J. D. (1993). Progression of early glaucomatous visual field loss as detected by blue-on-yellow and standard white-on-white automated perimetry. Arch Ophthalmol, 111(5), 651-656. PMID: 8489448.

Johnson, C. A., Howard, D. L., Marshall, D. & Shu, H. (1993). A noninvasive video-based method of measuring lens transmission properties of the human eye. Optom Vis Sci, 70, 944-955. PMID: 8302531.

Keltner, J. L., Johnson, C. A., Spurr, J. O. & Beck, R. W. (1993). Baseline visual field profile of optic neuritis. The experience of the optic neuritis treatment trial. Optic Neuritis Study Group. Archives of ophthalmology (Chicago, Ill. : 1960), 111(2), 231-4. PMID: 8431161.

Casson, E. J., Johnson, C. A. & Shapiro, L. R. (1993). Longitudinal comparison of temporal-modulation perimetry with white-on-white and blue-on-yellow perimetry in ocular hypertension and early glaucoma. Journal of the Optical Society of America. A, Optics, image science, and vision, 10(8), 1792-806. PMID: 8350162.

Johnson, C. A. (1993). Modern developments in clinical perimetry. Curr Opin Ophthalmol, 4(2), 7-13. PMID: 10148456.

Casson, E. J., Johnson, C. A. & Nelson-Quigg, J. M. (1993). Temporal modulation perimetry: the effects of aging and eccentricity on sensitivity in normals. Invest Ophthalmol Vis Sci, 11, 3096-3102. PMID: 8407217.

Keltner, J. L., Johnson, C. A., Beck, R. W., Cleary, P. A., Spurr, J. O. & The Optic Neuritis Study Group (1993). Quality control functions of the Visual Field Reading Center (VFRC) for the Optic Neuritis Treatment Trial (ONTT). Controlled Clin Trials, 14(2), 143-159. PMID: 8500303.

Keltner, J. L., Johnson, C. A., Spurr, J. & Beck, R. W. (1993). “Baseline visual field profile of optic neuritis” by Keltner JL, et al. (Vols. 111). pp. 1315-1317. Arch Ophthalmol.

Casson, E. J., Johnson, C. A. (1993). Temporal modulation perimetry in glaucoma and ocular hypertension. In R. P. Mills (Eds.) Perimetry Update 1992/93. pp. 443-450. New York: Kugler Publications.

Johnson, C. A. (1993). Role of automation in new instrumentation. Optom Vis Sci, 70(4), 288-298. PMID: 8502457.

Johnson, C. A., Adams, A. J. & Casson, E. J. (1992). Short-wavelength-sensitive perimetry (SWSP) can predict which glaucoma suspects will develop visual field loss. In Progress in Biomedical Optics: Proceedings of Ophthalmic Technologies II. (Vols. 1644). pp. 230-236. SPIE Publications.

Keltner, J. L., Johnson, C. A. (1992). Visual function and driving safety. (Vols. 110). pp. 1697-1698. Arch Ophthalmol.

Johnson, C. A., Chauhan, B. C. & Shapiro, L. R. (1992). Properties of staircase procedures for estimating thresholds in automated perimetry. Invest Ophthalmol Vis Sci, 33(10), 2966-2974. PMID: 1526745.

Osako, M., Casson, E. J. & Johnson, C. A. (1992). Comparison of spatial summation between glaucoma and optic neuritis patients with statokinetic dissociation. Jap J Ophthalmol, 46, 837-841.

Mutti, D. O., Zadnik, K., Johnson, C. A., Howland, H. C. & Murphy, C. J. (1992). Retinoscopic measurement of the refractive state of the rat. Vision Res, 32, 583-586.

Johnson, C. A., Casson, E. J. & Zadnik, K. (1992). Final Report on Entry Level Correctional Officer Vision Standards for the California Department of Corrections. California Department of Corrections Techincal Report, 1-102.

Adams, C. W., Johnson, C. A. (1991). Steady-state and dynamic response properties of the Mandelbaum effect. Vision Res, 31, 751-760.

Keltner, J. L., Johnson, C. A., Spurr, J. O. & The Optic Neuritis Study Group (1991). The Optic Neuritis Study Group: Visual Field Reading Center: Optic Neuritis Treatment Trial. In Perimetry Update 1990/1991 (Proceedings of the IX International Visual Field Symposium). pp. 151 (Brief Summary). Amsterdam: Kugler and Ghedini.

Casson, E. J., Osako, M., Johnson, C. A. & Hwang, P. (1991). Temporal and spatial response properties of optic neuritis patients manifesting statokinetic dissociation. Appl Opt, 30(16), 2136-2142. PMID: 20700188.

Osako, M., Casson, E. J., Johnson, C. A., Huang, P. & Keltner, J. L. (1991). Statokinetic dissociation: Analysis of spatial and temporal characteristics by perimetry. In Perimetry Update 1990/1991 (Proceedings of the IX International Visual Field Symposium). pp. 129-134. Amsterdam: Kugler and Ghedini.

Keltner, J. L., Johnson, C. A., Beck, R. W., Spurr, J. O. & The Optic Neuritis Study Group (1991). The Optic Neuritis Treatment Trial in the United States - Visual Field Reading Center. pp. 74-105. CIBA Vision Symposium Proceedings.

Johnson, C. A., Adams, A. J., Casson, E. J. & Nelson-Quigg, J. M. (1991). Can short wavelength sensitivity losses predict the development of glaucomatous visual field defects?. Noninvasive Assessment of the Visual System, J Opt Soc Am Technical Digest Series, 1, 216-219.

Osako, M., Casson, E. J., Johnson, C. A., Huang, P. & Keltner, J. L. (1991). Stato-kinetic dissociation in optic neuritis: Analysis of spatial and temporal characteristics. Jap J Ophthalmol, 85, 294-297.

Johnson, C. A., Shapiro, L. R. (1991). A rapid heuristic test procedure for automated perimetry. In Perimetry Update 1990/1991 (Proceedings of the IX International Visual Field Symposium). pp. 251-256. Amsterdam: Kugler and Ghedini.

Shapiro, L. R., Johnson, C. A. (1991). Evaluation of the diagnosis of visual fields. In Perimetry Update 1990/1991 (Proceedings of the IX International Visual Field Symposium). pp. 281-285. Amsterdam: Kugler and Ghedini.

Adams, A. J., Johnson, C. A. & Lewis, R. A. (1991). S cone pathway sensitivity loss in ocular hypertension and early glaucoma has nerve fiber bundle pattern. In Drum , Moreland & Serra (Eds.) Proceedings of the 10th Symposium of the International Research Group on Colour Vision Deficiencies. pp. 535-542. The NEtherlands: Kluwer Academic Publishers.

Keltner, J. L., Johnson, C. A., Spurr, J. O. & The Optic Neuritis Study Group (1991). Optic neuritis treatment trial: Initial visual field defects. In Perimetry Update 1990/1991 (Proceedings of the IX International Visual Field Symposium). pp. 135 (Brief Summary). Amsterdam: Kugler and Ghedini.

Casson, E. J., Hwang, P., Johnson, C. A. & Osako, M. (1990). Temporal response properties of optic neuritis patients manifesting statokinetic dissociation (SKD). J Opt Soc Am Technical Digest Series, 3, 48-51.

Casson, E. J., Shapiro, L. R. & Johnson, C. A. (1990). Short-term fluctuation as an estimate of variability in visual field data. Invest Ophthalmol Vis Sci, 31(11), 2459-2463. PMID: 2243009.

Johnson, C. A., Nelson-Quigg, J. M. (1990). Reliability of automated perimetric tests: In reply. (Vols. 108). pp. 777-778. Arch Ophthalmol.

Shapiro, L. R., Johnson, C. A. (1990). Quantitative evaluation of manual kinetic perimetry using computer simulation. Appl Opt, 29(10), 1445-50. PMID: 20563024.

Mannis, M. J., Zadnik, K. & Johnson, C. A. (1990). Contrast sensitivity: A viewpoint for clinicians, Chapter 1. In M. P. Nadler , D. Miller & D. J. Nadler (Eds.) Glare and Contrast Sensitivity for Clinicians. pp. 1-4. Berlin: IN: Glare and Contrast Sensitivity for Clinicians (Nadler MP, Miller D, Nadler DJ ,eds.) Berlin: Springer-Verlag.

Shu, H., Howard, D. L. & Johnson, C. A. (1990). Development of a noninvasive video-based method of measuring transmission properties of the human lens. J Opt Soc Am Technical Diget Series, 3, 151-154.

Wedemeyer, L., Johnson, C. A. & Keltner, J. L. (1989). Statokinetic dissociation in optic nerve disease. In Perimetry Update 1988/89, Proceedings of the VIIIth International Perimetric Society Meeting. pp. 9-14. Amsterdam: Kugler & Ghedini.

Chauhan, B. C., Drance, S. M., Douglas, G. R. & Johnson, C. A. (1989). Visual field damage in normal-tension and high-tension glaucoma. (Vols. 108). (6), pp. 636-642. Am J Ophthalmol. PMID: 2596542.

Nelson-Quigg, J. M., Twelker, J. D. & Johnson, C. A. (1989). Response properties of normal observers and patients during automated perimetry. Arch Ophthalmol, 107(11), 1612-1615. PMID: 2818281.

Lewis, R. A., Vijayan, N., Watson, C., Keltner, J. & Johnson, C. A. (1989). Visual field loss in migraine. Ophthalmology, 96, 321-326.

Johnson, C. A., Adams, A. J. & Lewis, R. A. (1989). Evidence for a neural basis of age-related visual field loss in normal observers. Invest Ophthalmol Vis Sci, 30(9), 2056-2064. PMID: 2777523.

Applegate, R. A., Johnson, C. A., Howland, H. C. & Yee, R. W. (1989). Monochromatic wavefront aberrations following radial keratotomy. (Vols. 7). pp. 98-102. Noninvasive Assessment of the Visual System, J Opt Soc Am Technical Digest Series.

Johnson, C. A., Shapiro, L. R. (1989). A comparison of MOBS (Modified Binary Search) and staircase test procedures in automated perimetry. In Noninvasive Assessment of the Visual System. (Vols. 7). pp. 84-87. J Opt Soc Am Technical Digest Series.

Johnson, C. A., Adams, A. J. & Lewis, R. A. (1989). Automated perimetry of short-wavelength sensitive mechanisms in glaucoma and ocular hypertension. Preliminary findings. In A. Heijl (Eds.) Perimetry Update 1988/89. Proceedings of the VIIIth International Perimetric Society Meeting. pp. 31-37. Amsterdam: Kugler & Ghedini.

Shapiro, L. R., Johnson, C. A. & Kennedy, R. L. (1989). KRAKEN. A computer simulation procedure for static, kinetic, suprathreshold static and heuristic perimetry. In A. Heijl (Eds.) Perimetry Update 1988/89. Proceedings of the VIIIth International Perimetric Society Meeting. pp. 431-438. Amsterdam: Kugler & Ghedini.

Ruben, J. B., Lewis, R. A., Johnson, C. A. & Adams, C. (1988). The effect of Goldmann applanation tonometry on automated static threshold perimetry. Ophthalmology, 95(2), 267-270. PMID: 2902545.

Johnson, C. A., Adams, C. W. & Lewis, R. A. (1988). Fatigue effects in automated perimetry. Appl Opt, 27(6), 1030-1037. PMID: 20531515.

HIlls, J., Johnson, C. A. (1988). Evaluation of the T test as a method of detecting visual field changes. Ophthalmology, 95(2), 261-266. PMID: 3050680.

Johnson, C. A., Adams, A. J., Twelker, J. D. & Quigg, J. M. (1988). Age-related changes in the central visual field for short-wavelength-sensitive pathways. J Opt Soc Am A Opt Image Sci Vis, 5, 2131-2139.

Mannis, M. J., Zadnik, K., Johnson, C. & Adams, C. (1988). Contrast sensitivity after epikeratophakia. Cornea, 7, 280-284. PMID: 3219862.

Zadnik, K., Mannis, M. J., Johnson, C. A. & Rich, D. (1987). Rapid contrast sensitivity assessment in keratoconus. Am J Ophthalmol, 64, 693-697.

Johnson, C. A., Lewis, R. A. (1987). Staircase scoring procedures for automated perimetry. Doc Ophthalmol Proc Series, 49, 575-580.

Johnson, C. A., Keltner, J. L. (1987). Optimal rates of movement for kinetic perimetry. Arch Ophthalmol, 105(1), 73-75. PMID: 3800748.

Johnson, C. A. (1987). Peripheral visual function at various adaptation levels. In Symposium Proceedings: Night Vision - Current Research and Future Directions. pp. 256-274. Washington DC: National Academy Press.

Keltner, J. L., Johnson, C. A. (1987). Visual function, driving safety and the elderly. Ophthalmology, 94(9), 1180-1188. PMID: 3684236.

Johnson, C. A., Keltner, J. L. & Lewis, R. A. (1987). JAWS (Joint Automated Weighting Statistic): A method of converting results between automated perimeters. Doc Ophthalmol Proc Series, 49, 567-568.

Mannis, M. J., Zadnik, K., Johnson, C. A. & Adams, C. (1987). Contrast sensitivity after penetrating keratoplasty. Arch Ophthalmol, 105, 1220-1223. PMID: 3307719.

Johnson, C. A., Keltner, J. L. & Lewis, R. A. (1987). Automated kinetic perimetry: An efficient method of evaluating peripheral visual field loss. Appl Opt, 26(8), 1409-1414. PMID: 20454335.

Reed, D. B., Mannis, M. J., Hills, J. F. & Johnson, C. A. (1987). Corneal epithelial healing after penetrating keratoplasty using topical Healon versus balanced salt solution. Ophthal Surg, 18, 525-528. PMID: 3306545.

Post, R. B., Johnson, C. A. (1986). Motion sensitivity in central and peripheral vision. Am J Opt Physiol Opt, 63, 104-107.

Lewis, R. A., Johnson, C. A., Keltner, J. L. & Labermeier, P. K. (1986). Variability of quantitative automated perimetry in normal observers. Ophthalmology, 93(7), 878-881. PMID: 3763131.

Keltner, J. L., Johnson, C. A. (1986). Current status of automated perimetry. Is the ideal automated perimeter available?. Arch Ophthalmol, 104(3), 247-349. PMID: 3513743.

Keltner, J. L., Johnson, C. A. (1986). Comparative material on automated and semiautomated perimeters - 1986. Ophthalmology, 93(Suppl 9), 1-25. PMID: 3808636.

Keltner, J. L., Johnson, C. A. & Lewis, R. A. (1985). Quantitative office perimetry. Ophthalmology, 92(7), 862-872. PMID: 4022569.

Lewis, R. A., Keltner, J. L. & Johnson, C. A. (1985). Preliminary clinical trials with the Humphrey Field Analyzer. Doc Ophthalmol Proc Series, 42, 159-165.

Keltner, J. L., May, W. N., Johnson, C. A. & Post, R. B. (1985). The California syndrome: Functional visual complaints with potential economic impact. Ophthalmology, 92, 427-435.

Verriest, G., Bailey, J. L., Calabria, G., Campos, E., Crick, R. P., Enoch, J. M., Esterman, B., Friedmann, A. C., Hill, A. R., Ikeda, M., Johnson, C. A., Overington, I., Ronchi, L., Saida, S., Serra, A., Villani, S., Weale, R. A., Wolbarsht, M. L. & Zingirian, M. (1985). The occupational visual field: II. Practical aspects: The functional visual field in abnormal conditions and its relationship to visual ergonomics, visual impairment and job fitness. Doc Ophthalmol Proc Series, 42, 281-326.

Lewis, R. A., Johnson, C. A. & Keltner, J. L. (1985). The variables of automated perimetry. (Vols. 66). pp. 273-275. Transactions of the Pacific Coast Oto-Ophthalmological Society.

Keltner, J. L., Johnson, C. A. (1985). The Synemed "Fieldmaster" perimeters, Chapter 8. In S. M. Drance , D. R. Anderson (Eds.) Automated Perimetry in Glaucoma. pp. 89-98. Orlando: IN: Automated Perimetry in Glaucoma (Drance SM, Anderson DR, eds.) Grune & Stratton.

Lewis, R. A., Johnson, C. A. (1985). Early detection of glaucomatous damage. I. Psychophysical disturbances. Surv Ophthalmol, 30(2), 111-126. PMID: 3906972.

Johnson, C. A., Keltner, J. L. (1985). Automated visual field testing, monograph 33. pp. 215-221. Proceedings of the Triservice Aeromedical Research Panel.

Johnson, C. A., Keltner, J. L. & Jacob, M. P. (1985). New test procedures for the SQUID automated perimeter. Doc Ophthalmol Proc Series, 42, 91-94.

Lewis, R. A., Keltner, J. L. & Johnson, C. A. (1985). A clinician's guide to automated perimetry. (Vols. 66). pp. 263-265. Transactions of the Pacific Coast Oto-Ophthalmological Society.

Keltner, J. L., Johnson, C. A. (1985). Comparative material on automated and semi-automated perimeters - 1985. Ophthalmology, 92(Suppl 8), 34-57. PMID: 3900851.

Post, R. B., Johnson, C. A. & Owens, D. A. (1985). Does performance of tasks affect the resting focus of accommodation?. Am J Opt Physiol Opt, 62, 533-537.

Algazi, V. R., Keltner, J. L. & Johnson, C. A. (1985). Computer analysis of the optic cup in glaucoma. Invest Ophthalmol Vis Sci, 26, 1759-1770.

Keltner, J. L., Johnson, C. A. (1984). Automated and manual perimetry - A six year overview. Special emphasis on neuro-ophthalmic problems. Ophthalmology, 91(1), 68-85. PMID: 6709321.

Keltner, J. L., Johnson, C. A. (1984). Automated perimetry. (Vols. Suppl). pp. 51-57. Ophthalmology.

Hamill, T. R., Post, R. B., Johnson, C. A. & Keltner, J. L. (1984). Correlation of color vision deficits and observable changes in the optic disc in a population of ocular hypertensives. Arch Ophthalmol, 102(11), 1637-1639. PMID: 6333864.

Keltner, J. L., Johnson, C. A. (1984). Comparative material on automated and semiautomated perimeters - 1984. Ophthalmology, Suppl, 25-50.

Post, R. B., Scobey, R. P. & Johnson, C. A. (1984). Effects of retinal eccentricity on displacement thresholds for unidirectional and oscillatory stimuli. Vision Res, 24, 835-840.

Post, R. B., Johnson, C. A. & Tsuetaki, T. K. (1984). Comparison of laser and infrared techniques for measurement of the resting focus of accommodation: Mean differences and long-term variability. Ophthal Physiol Opt, 4, 327-332.

Zadnik, K., Mannis, M. J. & Johnson, C. A. (1984). An analysis of contrast sensitivity in identical twins with keratoconus. Cornea, 3, 99-103.

Keltner, J. L., Johnson, C. A. (1984). Peripheral vision screening in a driving population. Science Writers Seminar in Ophthalmology, Research to Prevent Blindness, Inc, Washington DC, 27-29.

Schor, C. M., Johnson, C. A. & Post, R. B. (1984). Adaptation of tonic accommodation. Ophthal Physiol Opt, 4, 133-137.

Mannis, M., Zadnik, K. & Johnson, C. A. (1984). The effect of penetrating keratoplasty on contrast sensitivity in patients with keratoconus. Arch Ophthalmol, 102, 1513-1516.

Bedell, H. E., Johnson, C. A. (1984). The perceived size of targets in the peripheral and central visual fields. Ophthal Physiol Opt, 4, 123-131.

Johnson, C. A., Post, R. B. & Tsuetaki, T. K. (1984). Short-term variability of the resting focus of accommodation. Ophthal Physiol Opt, 4, 319-325.

Johnson, C. A. (1984). The rime of the ancient perimetrist. Surv Ophthalmol, 28, 428-429.

Verriest, G., Barca, L., Dubois-Poulsen, A., Houtmans, M. J., Inditsky, B., Johnson, C., Overington, I., Ronchi, L. & Villani, S. (1983). The occupational visual field. I. Theoretical aspects: the normal functional visual field. Doc Ophthalmol Proc Series, 35, 165-185.

Keltner, J. L., Johnson, C. A. (1983). Preliminary examination of the SQUID automated perimeter. Doc Ophthalmol Proc Series, 35, 371-377.

Johnson, C. A. (1983). The test logic of automated perimetry. In ACTA:XXIV International Congress of Ophthalmology. pp. 151-155. Philadelphia: JB Lippincott.

Matsumoto, E. R., Johnson, C. A. & Post, R. B. (1983). Effect of X-Chrom lens wear on chromatic discrimination and stereopsis in color-deficient observers. Am J Opt Physiol Opt, 60, 297-302.

Johnson, C. A., Keltner, J. L. (1983). The incidence of visual field loss in 20,000 eyes and its relationship to driving performance. Arch Ophthalmol, 101, 371-376. PMID: 6830485.

Keltner, J. L., Johnson, C. A. (1983). Comparative material on automated and semiautomated perimeters - 1983. Ophthalmology, Suppl, 1-35. PMID: 6646629.

Keltner, J. L., Johnson, C. A. (1983). Screening for visual field abnormalities with automated perimetry. Surv Ophthalmol, 28(3), 175-183. PMID: 6422573.

Drance, S. M., Keltner, J. L. & Johnson, C. A. (1983). Automated and semi-automated perimetry. Focal Points: Clinical Modules for Ophthalmologists, American Academy of Ophthalmology, Module #11.

Keltner, J. L., Johnson, C. A. (1983). Correlations between peripheral visual function and driving performance. Doc Ophthalmol Proc Series, 35, 211-216.

Johnson, C. A., Keltner, J. L. (1983). Properties of scotomata in glaucoma and optic nerve disease: computer analysis. Doc Ophthalmol Proc Series, 35, 281-286.

Johnson, C. A., Post, R. B., Chalupa, L. M. & Lee, T. J. (1982). Monocular deprivation in humans: a study of identical twins. Invest Ophthalmol Vis Sci, 23, 135-138. PMID: 7200966.

Johnson, C. A., Scobey, R. P. (1982). Effects of reference lines on displacement thresholds at various durations of movement. Vision Res, 22, 819-821.

Keltner, J. L., Johnson, C. A. (1982). Comparative material on automated and semiautomated perimeters - 1982. Ophthalmology, 89(Suppl), 65-80.

Keltner, J. L., Johnson, C. A. (1982). Effectiveness of automated perimetry in following glaucomatous visual field progression. Ophthalmology, 89(3), 247-254. PMID: 7088508.

Keltner, J. L., Johnson, C. A. (1981). Comments on: Visual field defect characteristics in cases of hyper- prolactinaemia by R. Fulmek and F. Friedrich. Doc Ophthalmol Proc Series 26, 26, 334-335.

Keltner, J. L., Johnson, C. A. (1981). Comparative material on automated and semi-automated perimeters - 1981. Ophthalmology, Suppl, 67-69.

Keltner, J. L., Johnson, C. A. (1981). Capabilities and limitations of automated suprathreshold static perimetry. Doc Ophthalmol Proc Series 26, 26, 49-55.

Johnson, C. A., Keltner, J. L. (1981). Computer analysis of visual field loss and optimization of automated perimetric test strategies. Ophthalmology, 88(10), 1058-1065. PMID: 7335310.

Keltner, J. L., Johnson, C. A. (1981). Automated perimetry. II. Devices manufactured in the United States and abroad. Ann Ophthalmol, 13(4), 395-397. PMID: 7247185.

Scobey, R. P., Johnson, C. A. (1981). Psychophyscial properties of Displacement Thresholds for Moving Targets. Acta Psychologica, 48, 59-65. PMID: 7304239.

Keltner, J. L., Johnson, C. A. (1981). Automated perimetry. I. A consumer's guide. Ann Ophthalmol, 13(3), 275-279. PMID: 7258935.

Scobey, R. P., Johnson, C. A. (1981). Displacement thresholds for unidirectional and oscillatory movement. Vision Res, 21, 1297-1302.

Johnson, C. A., Keltner, J. L. (1981). Static and acuity profile perimetry in optic neuritis. Doc Ophthalmol Proc Series 26, 26, 305-312.

Scobey, R. P., Johnson, C. A. (1981). Psychophysical properties of displacement thresholds for moving targets. Acta psychologica, 48(1-3), 49-55. PMID: 7304239.

Maddock, R. J., Millodot, M., Leat, S. & Johnson, C. A. (1981). Accommodation responses and refractive error. Invest Ophthalmol Vis Sci, 20, 387-391. PMID: 7203882.

Keltner, J. L., Johnson, C. A. (1980). Mass visual field screening in a driving population. Ophthalmology, 87(8), 785-790. PMID: 7443211.

Johnson, C. A., Scobey, R. P. (1980). Foveal and peripheral displacement thresholds as a function of stimulus luminance, line length and duration of movement. Vision Res, 20, 709-715.

Johnson, C. A., Keltner, J. L. (1980). Automated Visual Field Plotters vs Tangent Screen Kinetic Perimetry-Reply. Archives of Ophthalmology, 98, 931-932.

Johnson, C. A., Keltner, J. L. (1980). Comparative evaluation of the Autofield-1, CFA-120 and Fieldmaster Model 101-PR automated perimeters. Ophthalmology, 87(8), 777-784. PMID: 7443210.

Keltner, J. L., Johnson, C. A. & Cowley, I. J. (1980). Acuity profile perimetry in a unique case of bilateral central serous retinopathy. Ann Ophthalmol, 12, 726-731.

Johnson, C. A., Keltner, J. L. (1980). Automated suprathreshold static perimetry. Am J Ophthalmol, 89(5), 731-741. PMID: 7377271.

Johnson, C. A., Keltner, J. L. & Balestrery, F. G. (1979). Suprathreshold static perimetry in glaucoma and other optic nerve disease. Ophthalmology, 86(7), 1278-1286. PMID: 233860.

Keltner, J. L., Johnson, C. A. & Balestrery, F. G. (1979). Suprathreshold static perimetry: Initial clinical trials with the Fieldmaster automated perimeter. Arch Ophthalmol, 97(2), 260-272. PMID: 399178.

Johnson, C. A., Leibowitz, H. W. (1979). Practice effects for visual resolution in the periphery. Perception & Psychophysics, 25, 439-442.

Johnson, C. A., Keltner, J. L., Krohn, M. A. & Portney, G. L. (1979). Photogrammetry of the optic disc in glaucoma and ocular hypertension with simultaneous stereo photography. Investigative ophthalmology & visual science, 18(12), 1252-63. PMID: 511466.

Krohn, M. A., Keltner, J. L. & Johnson, C. A. (1979). Comparison of photographic techniques and films used in stereophotogrammetry of the optic disk. Am J Ophthalmol, 88, 859-863.

Keltner, J. L., Johnson, C. A. (1979). Ophthalmology-epitomes of progress: automated perimetry. The Western journal of medicine, 130(6), 543. PMID: 18748431.

Johnson, C. A., Keltner, J. L. (1979). Comparison of manual and automated perimetry in 1,000 eyes. In Computers in Ophthalmology. pp. 178-181. New York: IEEE Computer Society Publications.

Johnson, C. A., Keltner, J. L. & Balestrery, F. G. (1979). Acuity profile perimetry: Description of technique and preliminary clinical trials. Arch Ophthalmol, 97(4), 684-689. PMID: 426683.

Johnson, C. A., Keltner, J. L. & Balestrery, F. (1978). Effects of target size and eccentricity on visual detection and resolution. Vision Res, 18, 1217-1222.

Enoch, J. M., Johnson, C. A. (1977). The Westheimer function as an indicator of fixation locus. Am J Ophthalmol, 83(4), 495-498. PMID: 868950.

Enoch, J. M., Johnson, C. A. & Fitzgerald, C. R. (1977). Human psychophysical analysis of receptive field-like properties: VII. Initial clinical trials of the psychophysical transient-like function. Doc Ophthalmol Proc Series XIV (Second International Visual Field Symposium), 14, 373-378.

Leibowitz, H. W., Johnson, C. A. & Guez, J. R. (1977). Differences in the processing of peripheral stimuli. Doc Ophthalmol Proc Series XIV (Second International Visual Field Symposium), 14, 299-302.

Johnson, C. A., Enoch, J. M. (1977). Human psychophysical analysis of receptive field-like properties: VI. Current summary and analysis of factors affecting the psychophysical transient-like function. Doc Ophthalmol Proc Series XIV (Second International Visual Field Symposium), 14, 367-371.

Johnson, C. A., Leibowitz, H. W., Millodot, M. & Lamont, A. (1976). Peripheral visual acuity and refractive error: Evidence for "two visual systems"?. Perception and Psychophysics, 20, 460-462.

Enoch, J. M., Johnson, C. A. & Fitzgerald, C. R. (1976). Human psychophysical analysis of receptive field-like properties: V. Adaptation of stationary and moving windmill target characteristics to clinical populations. Doc Ophthalmol, 41(2), 347-370. PMID: 1009821.

Johnson, C. A. (1976). Some psychophysical considerations for visual training. Low Vision Abstracts, 2, 1-3.

Johnson, C. A., Leibowitz, H. W. (1976). Velocity-time reciprocity in the perception of motion: Foveal and peripheral determinations. Vision Res, 16, 177-180.

Enoch, J. M., Lazarus, J. & Johnson, C. A. (1976). Human psychophysical analysis of receptive field-like properties: I. A new transient like visual response using a moving windmill (Werblin-type) target. Sensory Processes, 1, 14-32.

Johnson, C. A. (1976). Effects of luminance and stimulus distance on accommodation and visual resolution. J Opt Soc Am, 66, 138-142. PMID: 1082014.

Johnson, C. A., Enoch, J. M. (1976). Human psychophysical analysis of receptive field-like properties: IV. Further examination and specification of the psychophysical transient-like function. Doc Ophthalmol, 41(2), 329-345. PMID: 1009820.

Enoch, J. M., Johnson, C. A. (1976). Additivity of effects within sectors of the sensitization zone of the Westheimer function. Am J Opt Physiol Opt, 53, 350-358.

Johnson, C. A., Enoch, J. M. (1976). Human psychophysical analysis of receptive field-like properties: II. Dichoptic properties of the Westheimer function. Vision Res, 16, 1455-1462.

Johnson, C. A., Enoch, J. M. (1976). Human psychophysical analysis of receptive field-like properties: III. Dichoptic properties of a new transient-like psychophysical function. Vision Res, 16, 1463-1470.

Johnson, C. A., Leibowitz, H. W. (1974). Practice, refractive error and feedback as factors influencing peripheral motion thresholds. Perception and Psychophysics, 15, 276-280.

Leibowitz, H. W., Johnson, C. A. & Isabelle, E. (1972). Peripheral motion detection and refractive error. Science, 177, 1207-1208. PMID: 5057628.