Karen M. Gehrs, MD

Portrait
Clinical Professor of Ophthalmology and Visual Sciences

Contact Information

105 East 9th Street
Coralville, IA 52241
--

Office:
319-467-2000

Education

BS, Chemistry, Rhodes College
MD, Medicine, University of Missouri-Columbia

Internship, St. John's Mercy Medical Center
Resident, Ophthalmology, Duke University Eye Center
Fellow, Vitreoretinal Surgery, Duke University Eye Center
Resident, Chief Resident, Ophthalmology, Retina, Duke University Eye Center

Licensure and Certifications

State of Florida Medical License (permanent) - Florida Board of Medicine
State of Iowa Medical License - Iowa Board of Medicine
Kansas State Medical License (Permanent) - Kansas Board of Medicine
State of Illinois Medical License - Illinois Board of Medicine
State of Missouri Medical License (permanent) - Missouri Board of Medicine
Ophthalmology Board Certification - American Board of Ophthalmology
State of North Carolina Medical License (permanent) - North Carolina Board of Medicine
NBME Diplomate - National Board of Medical Examiners

Publications

Lee, S. Y., Cheng, J. L., Gehrs, K. M., Folk, J. C., Sohn, E. H., Russell, S. R., Guo, Z., Abràmoff, M. D. & Han, I. C. (2017). Choroidal Features of Acute Macular Neuroretinopathy via Optical Coherence Tomography Angiography and Correlation With Serial Multimodal Imaging. JAMA ophthalmology, 135(11), 1177-1183. PMID: 28973538.

Chin, E. K., Almeida, D. R., Velez, G., Xu, K., Peraire, M., Corbella, M., Elshatory, Y. M., Kwon, Y. H., Gehrs, K. M., Boldt, H. C., Sohn, E. H., Russell, S. R., Folk, J. C. & Mahajan, V. B. (2017). Ocular hypertension after intravitreal dexamethasone (Ozurdex) sustained-release implant. Retina (Philadelphia, Pa.), 37(7), 1345-1351. PMID: 27806001.

Mahajan, V., Almeida, D., Chin, E., Shah, S., Bakall, B., Gehrs, K., Boldt, C., Russell, S. & Folk, J. (2016). Comparison of microbiology and visual outcomes of patients undergoing small-gauge and 20-gauge vitrectomy for endophthalmitis. Clinical Ophthalmology, 10, 167-172. DOI: 10.2147/opth.s95906.

Mahajan, V., Almeida, D., Tarantola, R., Tegins, E., Lopez, C., Boldt, C., Gehrs, K., Sohn, E., Russell, S., Folk, J. & Chin, E. (2015). Long-term outcomes in patients undergoing vitrectomy for retinal detachment due to viral retinitis. Clinical Ophthalmology, 9, 1307-1314. DOI: 10.2147/opth.s87644.

Mahajan, V. B., Chin, E. K., Tarantola, R. M., Almeida, D. R., Somani, R., Boldt, H. C., Folk, J. C., Gehrs, K. M. & Russell, S. R. (2015). Macular Hole Closure With Internal Limiting Membrane Abrasion Technique. JAMA Ophthalmology, 133(6), 635. DOI: 10.1001/jamaophthalmol.2015.204.

Chin, E., Almeida, D., Roybal, C. N., Niles, P., Gehrs, K., Sohn, E., Boldt, C., Russell, S. & Folk, J. (2015). Oral mineralocorticoid antagonists for recalcitrant central serous chorioretinopathy. Clinical Ophthalmology, 9, 1449-1456. DOI: 10.2147/opth.s86778.

Almeida, D. R., Chin, E. K., Roybal, C. N., Elshatory, Y. & Gehrs, K. M. (2015). Multiplane Peripheral Vitreous Dissection With Perfluoro-n-Octane and Triamcinolone Acetonide. Retina (Philadelphia, Pa.), 35(4), 827-8. PMID: 25768254.

Meyers, K. J., Liu, Z., Millen, A. E., Iyengar, S. K., Blodi, B. A., Johnson, E., Snodderly, D. M., Klein, M. L., Gehrs, K. M., Tinker, L., Sarto, G. E., Robinson, J., Wallace, R. B. & Mares, J. A. (2015). Joint Associations of Diet, Lifestyle, and Genes with Age-Related Macular Degeneration. Ophthalmology, 122(11), 2286-2294. PMID: 26354764.

Meyers, K. J., Mares, J. A., Igo Jr, R. P., Truitt, B., Liu, Z., Millen, A. E., Klein, M., Johnson, E. J., Engelman, C. D., Karki, C. K., Blodi, B., Gehrs, K., Tinker, L., Wallace, R., Robinson, J., Leblanc, E. S., Sarto, G., Bernstein, P. S., Sangiovanni, J. P. & Iyengar, S. K. (2014). Genetic Evidence for Role of Carotenoids in Age-Related Macular Degeneration in the Carotenoids in Age-Related Eye Disease Study (CAREDS). (Epub 2013/12/19). Invest Ophthalmol Vis Sci, 55(1), 587-599. PMID: 24346170.

Chin, E. K., Almeida, D. R., Sohn, E. H., Boldt, H. C., Mahajan, V. B., Gehrs, K. M., Russell, S. R. & Folk, J. C. (2014). Incomplete vitreomacular traction release using intravitreal ocriplasmin. Case Reports Ophthalmology, 5(3), 455-462. PMID: 25606039.

Koffron, P., Jacobsen, J. & Gehrs, K. (2013). Use of ophthalmic lidocaine gel as an anesthetic for intravitreal injections. Insight, 38(2), 22-23. PMID: 23724560.

Perlee, L. T., Bansal, A. T., Gehrs, K., Heier, J. S., Csaky, K., Allikmets, R., Oeth, P., Paladino, T., Farkas, D. H., Rawlings, P. L. & Hageman, G. S. (2013). Inclusion of genotype with fundus phenotype improves accuracy of predicting choroidal neovascularization and geographic atrophy. Ophthalmology, 120(9), 1880-1892. PMID: 23523162.

Meyers, K. J., Johnson, E. J., Bernstein, P. S., Iyengar, S. K., Gngelman, C. D., Carki, C. K., Liu, Z., Igo Jr, R. P., Truitt, B., Klein, M. L., Snodderly, D. M., Bloldi, B. A., Gehrs, K. M., Sarto, G. E., Wallace, R. B., Robinson, J., Leblanc, E. S., Hageman, G., Tinker, L. & Mares, J. A. (2013). Genetic determinants of macular pigments in women of the carotenoids in age-related eye disease study. Invest Ophthalmol Vis sci, 54(3), 2333-2345. PMID: 23404124.

Kitzmann, A. S., Fethke, N. B., Baratz, K. H., Zimmerman, M. B., Hackbarth, D. J. & Gehrs, K. M. (2012). A survey study of musculoskeletal disorders among eye care physicians compared with family medicine physicians. Ophthalmology, 119(2), 213-220. PMID: 21925736.

Skeie, J. M., Brown, E. N., Martinez, H. D., Russell, S. R., Birkholz, E. S., Folk, J. C., Boldt, H., Gehrs, K. M., Stone, E. M., Wright, M. E. & Mahajan, V. B. (2012). Proteomic analysis of vitreous biopsy techniques. Retina, 32(10), 2141-2149. PMID: 23095728.

Mares, J. A., Voland, R. P., Sondel, S. A., Millan, A. E., Larowe, T., Moeller, S. M., Klein, M. L., Blodi, B. A., Chappell, R. J., Tinker, L., Ritenbaugh, C., Gehrs, K. M., Sarto, G. E., Johnson, E., Snodderly, D. M. & Wallace, R. B. (2011). Healthy lifestyles related to subsequent prevalence of age-related macular degeneration. Arch Ophthalmol, 129(4), 470-480. PMID: 21149749.

Hageman, G. H., Gehrs, K. M., Lejnine, S., Bansal, A. T., Deangelis, M. M., Guymer, R. H., Baird, P. N., Allikmets, R., Deciu, C., Oath, P. & Perlee, L. T. (2011). Clinical validation of a genetic model to estimate the risk of developing choroidal neovascular age-related macular degeneration. Human Genomics, 5(5), 420-440. PMID: 21807600.

Mahajan, V. B., Elkins, K. A., Russell, S. R., Boldt, H., Gehrs, K. M., Weingeist, T. A., Stone, E. M., Abramoff, M. D., Liu, D. & Folk, J. C. (2011). Bilateral intravitreal injection of antivascular endothelial growth factor therapy. Retina, 31(1), 31-35. PMID: 21187731.

Kay, C. N., Tarantola, R. M., Gehrs, K. M., Folk, J. C., Mahajan, V. B., Boldt, H. C., Syed, N. A. & Russell, S. R. (2011). Uveitis following intravitreal bevacizumab: a non-infectious cluster. Ophthalmic Surg Lasers Imaging, 42(4), 292-296. PMID: 21800802.

Millen, A. E., Voland, R., Sondel, S. A., Parekh, M., Horst, R. L., Wallace, R. B., Hageman, G. S., Chappell, R., Blodi, B. A., Klein, M. L., Gehrs, K. M., Sarto, G. E., Mares, J. A. & CAREDS Study Group (2011). Vitamin D status and early age-related macular degeneration in postmenopausal women. Arch Ophthalmol, 129(4), 481-489. PMID: 21482873.

Gehrs, K. M., Jackson, J. R., Brown, E. N., Allikmets, R. & Hageman, G. S. (2010). Complement, age-related macular degeneration and a vision of the future. Arch Ophthalmol, 128(3), 349-358. PMID: 20212207.

Mares, J. A., Voland, R., Adler, R., Tinker, L., Millen, A. E., Moeller, S. M., Blodi, B., Gehrs, K. M., Wallace, R. B., Chappell, R. J., Neuhouser, M. L., Sarto, G. & CAREDS Study Group (2010). Healthy diets and the subsequent prevalence of nuclear cataract in women. Arch Ophthalmol, 128(6), 738-749. PMID: 20547952.

Gehrs, K. M. (2010). How soon should a patient with floaters be examined and how should I manage a patient with an acute posterior vitreous detachment?. In S. Fekrat (Eds.) Curbside Consultations in Retina, 49 Clinical Questions. pp. 25-28. Slack, Inc.

Mahajan, V. B., Gehrs, K. M., Goldstein, D. A., Fischer, D. H., Lopez, J. S. & Folk, J. C. (2009). Management of sympathetic ophthalmia with the fluocinolone acetonide implant. Ophthalmology, 116(3), 552-557. PMID: 19147232.

CAREDS Macular Pigment Study Group, LaRowe, T. L., Mares, J. A., Snodderly, D. M., Klein, M. L., Wooten, B. R., Chappell, R., Gehrs, K. M. & 10 Collaborators (2008). Macular pigment density and age-related maculopathy in the Carotenoids in Age-Related Eye Disease Study. An ancillary study of the women's health initiative. Ophthalmology, 115(5), 876-883. PMID: 17868874.

Complications of Age-related Macular Degeneration Prevention Trial (CAPT) Research Group, Gehrs, K. M. & 334 Collaborators (2008). Risk factors for choroidal neovascularization and geographic atrophy in the complications of age-related macular degeneration prevention trial. Ophthalmology, 115(9), 1474-1479. PMID: 18502512.

CAREDS Study Group; Women's Helath Initiative, Moeller, S. M., Voland, R., Tinker, L., Blodi, B. A., Klein, M. L., Gehrs, K. M., Johnson, E. J., Snodderly, D. M., Wallace, R. B., Chappell, R. J., Parekh, N., Ritenbaugh, C. & Mares, J. A. (2008). Associations between age-related nuclear cataract and lutein and zeaxanthin in the diet and serum in the Carotenoids in the Age-Related Eye Disease Study, an Ancillary Study of the Women's Health Initiative. Arch Ophthalmol, 126(3), 354-364. PMID: 18332316.

Maguire, M. A., Alexander, J., Fine, S. L., Complications of Age-related Macular Degeneration Prevention Trial (CAPT) Research Group., Gehrs, K. M. & 334 Collaborators (2008). Characteristics of choroidal neovascularization in the complications of age-related macular degeneration prevention trial. Ophthalmology, 115(9), 1468-1473. PMID: 18486222.

Hageman, G. S., Gehrs, K. M., Johnson, L. V. & Amderson, D. (2008). Age-related macular degeneration (Part XN). In H. Kolb , E. Fernandez , R. Nelson (Eds.) Webvision: The organization of the retina and visual system.. Provo UT: John Moran Eye Center.

Gehrs, K. (2008). Repair of primary rhegmatogenous retinal detachment. pp. 30-32. Retina Today.

AMD Clinical Study Group, Hageman, G. S., Hancox, L. S., Taiber, A. J., Gehrs, K. M., Anderson, D. H., Johnson, L. V., Radeke, M. J., Kavanaugh, D., Richards, A., Atkinson, J., Meri, S., Bergeron, J., Zernant, J., Merriam, J., Gold, B., Allikmets, R. & Dean, M. (2006). Extended haplotypes in the complement factor H (CFH) and CFH-related (CFHR) family of genes protect against age-related macular degeneration: characterization, ethnic distribution and evolutionary implications. Ann Med, 38(8), 592-604. PMID: 17438673.

Gold, B., Merriam, J. E., Zernant, J., Hancox, L. S., Taiber, A. J., Gehrs, K. M., Cramer, K., Neel, J., Bergeron, J., Barile, G. R., Smith, R. T., The AMD Genetics Clinical Study Group, Hageman, G. S., Dean, M. & Allikmets, R. (2006). Variation in factor B (BF) and complement component 2 (C2) genes is associated with age-related macular degeneration. Nat Genet, 38(4), 458-462. PMID: 16518403.

Gehrs, K. M., Anderson, D. H., Johnson, L. V. & Hageman, G. S. (2006). Age-related macular degeneration-emerging pathogenetic and therapeutic concepts. Ann Med, 38(7), 450-471. PMID: 17101537.

Complications of Age-Related Macular Degeneration Prevention Trial Research Group, Gehrs, K. M. (2006). Laser treatment in patients with bilateral large drusen: The complications of age-related macular degeneration prevention trial. Ophthalmology, 113(11), 1974-1986. PMID: 17074563.

The PKC-DRS Study Group, Gehrs, K. M. (2005). The effect of ruboxistaurin on visual loss in patients with moderately severe to very severe nonproliferative diabetic retinopathy. Initial results of the protein kinase C beta inhibitor diabetic retinopathy study (PKC-DRS) multicenter randomized clinical. Diabetes, 54(7), 2188-2197. PMID: 15983221.

Hageman, G. S., Anderson, D. H., Johnson, L. V., Hancox, L. S., Taiber, A. J., Hardisty, L. I., Hageman, J. L., Stockman, H. A., Borchardt, J. D., Gehrs, K. M., Smith, R. J., Silvestri, G., Russell, S. R., Klaver, C. C., Barbazetto, I., Chang, S., Yannuzzi, L. A., Barile, G. R., Merriam, J. C., Smith, R. T., Olsh, A. K., Bergeron, J., Zernant, J., Merriam, J. E., Gold, B., Dean, M. & Allikmets, R. (2005). A common haplotype in the complement regulatory gene factor H (HF1/CFH) predisposes individuals to age-related macular degeneration. Proceedings of the National Academy of Sciences of the United States of America, 102(20), 7227-7232. PMID: 15870199.

The Complications of Age-Related Macular Degeneration Prevention Trial Study Group, Gehrs, K. M. (2004). The complications of age-related macular degeneration prevention trial (CAPT): rationale, design and methodology. Clinical Trials, 1(1), 91-107. PMID: 16281465.

Liu, J. C., Boldt, H. C., Folk, J. C. & Gehrs, K. M. (2004). Photodynamic therapy of subfoveal and juxtafoveal choroidal neovascularization in ocular histoplasmosis syndrome: a retrospective case series. Retina, 24(6), 863-870. PMID: 15579982.

The Anecortave Acetate Clinical Study Group, Gehrs, K. M. (2003). Anecortave acetate as monotherapy for treatment of subfoveal neovascularization in age-related macular degeneration: Twelve-month clinical outcomes. Ophthalmology, 110(12), 2372-2385. PMID: 14644721.

Choroidal Neovascularization Prevention Trial Research Group, Gehrs, K. M. (2003). Laser treatment in fellow eyes with large drusen: Updated findings from a pilot randomzied clinical trial. Ophthalmology, 110(5), 971-978. PMID: 12750100.

Oh, K. T., Longmuir, R. A., Oh, D. M., Stone, E. M., Kopp, K., Brown, J., Fishman, G. A., Sonkin, P., Gehrs, K. M. & Weleber, R. G. (2003). Comparison of the clinical expression of retinitis pigmentosa associated with rhodopsin mutations at codon 347 and codon 23. Am J Ophthalmol, 136(2), 306-313. PMID: 12888054.

Gehrs, K. M., Danesh, S. (2003). Clinical trials in vitreoretinal disease. In S. M. Steidl , M. E. Hartnett (Eds.) Clinical Pathways in Vitreoretinal Disease. pp. 406-427. New York: Thieme Medical Publishers, Inc.

Honkanen, R. A., Baruah, S., Zimmerman, M. B., Khanna, C. L., Weaver, Y. K., Narkiewicz, J., Waziri, R., Gehrs, K. M., Weingeist, T. A., Boldt, H., Folk, J. C., Russell, S. R. & Kwon, Y. H. (2003). Vitreous amino acid concentrations in patients with glaucoma undergoing vitrectomy. Arch Ophthalmol, 121(2), 183-188. PMID: 12583783.

The Anecortave Acetate Clinical Study Group, Gehrs, K. M. (2003). Anecortave acetate as monotherapy for the treatment of subfoveal lesions in patients with exudative age-related macualr degeneration (AMD): Interim (Month 6) analysis of clinical safety and efficacy. Retina, 23(1), 14-23. PMID: 12652226.

Kherani, F., Kherani, A., Gehrs, K. M., Heilskov, T. W., Sutphin, J. E. & Wagoner, M. D. (2002). Xanthomonas maltophilia endophthalmitis following penetrating corneal injury. Can J Ophthalmol, 37(5), 301-303. PMID: 12322863.

Haimovici, R., D'Amico, D. J., Gragoudas, E. S., Sokol, S., The Deferoxamine Retinopathy Study Group & Gehrs, K. M. (2002). The expanded clinical spectrum of deferoxamine retinopathy. Ophthalmology, 109(1), 164-171. PMID: 11772599.

White, N. H., Cleary, P. A., Dahms, W., Goldstein, D., Malone, J., Tamborlane, W. V., Diabetes Control and Complications Trial (DCCT)/Epidemiology of Diabetes Interventions and Complications (EDIC) Research Group & Gehrs, K. M. (2001). Beneficial effects of intensive therapy of diabetes during adolescence: Outcomes after the conclusion of the Diabetes Control and Complications Trial (DCCT). Journal of Pediatrics, 139(6), 804-812. PMID: 11743505.

Gehrs, K. M. (2001). Visual disturbance associated with celecoxib-A comment. Pharmacotherapy, 21(8), 1014. PMID: 11718490.

Gehrs, K. M. (2001). Efficacy of octreotide in the therapy of severe nonproliferative and early proliferative diabetic retinopathy: a randomized controlled study. Response to Grant et al. (Vols. 24). (1), pp. 182-3. Diabetes care. PMID: 11194232.

Kherani, F., Kherani, A., Gehrs, K. M., Halgren, J. T., Omphroy, L. C., Heilskov, T. W., Sutphin, J. E. & Wagoner, M. D. (2001). Sequential culture-negative endophthalmitis, fungal keratitis, and late xanthomonas maltophilia endophthalmitis following penetrating corneal injury. Middle East Journal of Ophthalmology, 9, 124-127.

Folk, J. C., Gehrs, K. M. (2001). Multifocal choroiditis with panuveitis, diffuse subretinal fibrosis, and punctate inner choroidopathy. In S. J. Ryan , A. P. Schachat (Eds.) Retina. (3rd), pp. 1709-1720. St Louis: Mosby.

Gehrs, K. M. (2001). Efficacy of octreotide in the therapy of severe nonproliferative and early proliferative diabetic retinopathy: a randomized controlled study (Letter to the Editor). Diabetes Care, 24(1), 182-183. PMID: 11194232.

Gehrs, K. M. (2001). Alport Syndrome. In D. H. Gold , T. A. Weingeist (Eds.) Color Atlas of the Eye in Systemic Disease. pp. 461-464. Philadelphia: Lippincott Williams & Wilkins.

Russell, S. R., Gehrs, K. M. & Hess, C. L. (2000). Estimate and measure of the region of view and myopia resulting from vitreous gas. Retina, 20(3), 282-288. PMID: 10872934.

Shappell, K. K., Gehrs, K. M., Keech, R. V., Cannon, T. C. & Folberg, R. (1999). Meningococcemia with vitreous opacities: endophthalmitis or vitreous hemorrhage?. Archives of ophthalmology, 117(2), 268-9. PMID: 10037579.

Davitt, B., Gehrs, K. M. & Bowers, T. (1998). Endogenous nocardia endophthalmitis. Retina, 18(1), 71-73. PMID: 9502286.

Gehrs, K. M. (1997). No reliable results reported in ARMD radiation studies. Ophthalmol World News, 2, 8-9.

Gehrs, K. M. (1997). Sustained-release ganciclovir implants represent an effective treatment option for many patient with cytomegalovirus (CMV) retinitis. Retina, 17(5), 463-464. PMID: 9355202.

Polk, T. D., Russell, S. R., Gehrs, K. M. & Folk, J. C. (1997). Sustained-release ganciclovir implants represent an effective treatment option for many patients with cytomegalovirus (CMV) retinitis. (Vols. 17). (5), pp. 463-4. Retina (Philadelphia, Pa.). PMID: 9355202.

Folk, J. C., Gehrs, K. M. & Kolder, H. E. (1997). Diagnosis of occult lenticular nuclear sclerosis using the Hruby lens. Arch Ophthalmol, 115(8), 1086. PMID: 9258242.

Small, K. W., Gehrs, K. M. (1996). Clinical study of a large family with autosomal dominant progressive cone degeneration. Am J Ophthalmol, 121(1), 1-12. PMID: 8554074.

Small, K. W., Syrquin, M., Mullen, L. & Gehrs, K. M. (1996). Mapping of autosomal dominant cone degeneration to chromosome 17p. Am J Ophthalmol, 121(1), 13-18. PMID: 8554076.

Gehrs, K. M., Pollock, S. C. & Zilkha, G. (1995). Clinical features and pathogenesis of Alport retinopathy. Retina, 15(4), 305-311. PMID: 8545576.

Gehrs, K. M., Tiedeman, J. S. (1992). Hemeralopia in an older adult. Surv Ophthalmol, 37(3), 185-189. PMID: 1475752.

Gehrs, K. M., Heriot, W. J. & deJuan, Jr., E. (1992). Transmission electron microscopic study of a choroidal neovascular membrane due to age-related macular degeneratin. Arch Ophthalmol, 110(6), 833-837. PMID: 1375827.