John S. Cohen, M.D. is Director Emeritus of the Glaucoma Service at the Cincinnati Eye Institute (CEI). He is a graduate of the University of Louisville School of Medicine, received his Ophthalmology training at the University of Cincinnati, and completed his glaucoma Fellowship at the University of California, San Francisco. Dr. Cohen was Assistant Professor of Ophthalmology at the University of South Florida from 1975 to 1977 where he taught glaucoma and cataract implant surgery. He was Chief of the Glaucoma Service at the University of Cincinnati College of Medicine from 1977 to 1984, is presently Volunteer Clinical Professor in the Department of Ophthalmology and Director Emeritus of the Glaucoma Service, Cincinnati Eye Institute.