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Neuro-Ophthalmology Faculty and Staff


Matthew Thurtell

Service Director, Dr. Matthew Thurtell, MBBS, MSc, joined our Department in December 2010, as Assistant Professor with a joint appointment in Ophthalmology, Neurology, and the Department of Veterans Affairs Medical Center. Dr. Thurtell trained in Neurology in Sydney, Australia under the mentorship of Dr. G. Michael Halmagyi, one of the most well-known experts in ocular motility and the vestibular system. Following his residency, Dr. Thurtell completed a two-year fellowship in Neuro-ophthalmology with Drs. John Leigh and Robert Tomsak at Case Western Reserve in Cleveland, Ohio. During his clinical fellowship in Cleveland, Dr. Thurtell continued to develop his expertise in eye movement and in the visual afferent system, with special interest in the pathophysiology and treatment of raised intracranial pressure as it pertains to the visual system. Dr. Thurtell then completed a third year of Neuro-ophthalmology fellowship at Emory University in Atlanta, Georgia under the direction and mentorship of Drs. Nancy Newman, Valerie Biousse, and Beau Bruce. Dr. Thurtell adds important expertise to our Iowa Neuro-ophthalmology Service in central and peripheral aspects of ocular motility physiology and pathology. He also continues his interest and expertise in the afferent visual system, including idiopathic intracranial hypertension.


Sophia Chung, MDSophia M. Chung, MD, joined our Department in January 2020 after 6 months sabbatical as the Helen C Levitt Endowed Annual Visiting Professor.  Previously, she held the Walter and Sharon Ryan Davisson Endowed Professorship of Ophthalmology at Saint Louis University School of Medicine in Saint Louis, MO, where she served for 30 years.  She holds a second appointment in the Department of Neurology.  She completed her residency in ophthalmology and fellowship in neuro-ophthalmology at the Cullen Eye Institute, Baylor College of Medicine.  Dr. Chung is an Emeritus Board Director of the American Board of Ophthalmology, current Vice-Chair for the ACGME RRC for Ophthalmology, and Fellow of the North American Neuro-Ophthalmology Society having served on its’ board and numerous committees.  Dr. Chung considers her greatest contribution to the field of ophthalmology to be the education of residents, medical students, and fellows.  She has won 5 teaching and 3 best lecturer awards and was amongst the inaugural group of awardees of the Distinguished Teacher Award at Saint Louis University School of Medicine.  She will continue her teaching endeavors and continue her research on optic nerve blood flow using laser speckle flowgraphy. 

Randy Kardon

Randy Kardon MD, PhD, has been part of the neuro-ophthalmology faculty in this Department since 1989. He has continued the Iowa tradition of interest in pupillary questions and has taken pupillary research to a new level of technical sophistication. He is recognized as an important innovator; he has developed several new tests for examining visual function, and has a number of nationally competitive grants supporting his pupil studies. In addition, he is known as an astute diagnostician, an effective teacher, and is a much sought after lecturer.




Michael WallMichael Wall, M.D. is a neurologist who trained as a neuro-ophthalmologist in Boston. Dr. Wall has been part of the Neuro-ophthalmology faculty at Iowa since 1991. Before that, he had been a neuro-ophthalmologist at Tulane University in New Orleans. Dr. Wall holds a secondary appointment in the Department of Neurology. He has a special clinical interest in increased intracranial pressure and its effect on vision. He was the principal investigator of the NIH funded Idiopathic Intracranial Hypertension Treatment Trial. Dr. Wall is also an expert on testing the visual fields and a respected investigator on the subtleties of this important test.




Stan Thompson

H. Stanley Thompson, M.D., M.S. founded the Neuro-ophthalmology Unit in Iowa City, was its director for 30 years (1967-1997) and is now retired. His interest in the workings of the pupil of the eye stimulated pupillary research in Iowa City and made Iowa known around the world as a place where unusual pupillary problems might be solved.




Ramona WeberRamona Weber is our service secretary

View group photos of past faculty and fellows