Longman, Randy S MD

Royce Chen, MD, is the Helen and Martin Kimmel Assistant Professor of Ophthalmology at Columbia University Medical Center and Attending Ophthalmologist at the New York-Presbyterian Hospital. He is a board-certified ophthalmologist who specializes in surgical and medical management of vitreoretina...

Dr. Jason Horowitz, Associate Professor of Ophthalmology at Columbia University Irving Medical Center, joined Columbia in 2011 after a rewarding 25-year experience delivering retinal care to the Waterbury, Connecticut community. A graduate of Harvard College and Yale Medical School, Dr. Horowitz was an ophthalmology resident at Yale before completing a retinal fellowship at Cornell, where he trained under Dr. Stanley Chang.Dr. Horowitz's interests in ophthalmology are wide ranging. He is currently Medical Director of the Residents' Eye Clinic at Harkness, where some of the most complicated and diverse patients in the world are evaluated and treated for an astonishing variety of ocular diseases. In a completely different domain, Dr. Horowitz has assumed the role of performing essential evaluations for retinopathy of prematurity in the infant patients of the world famous neonatal intensive care unit at Columbia's Morgan Stanley Children's Hospital of New York.In yet another realm, Dr. Horowitz manages complex retinal and macular disorders in adults such as retinal detachments and macular pucker. Together with his 36 years of retinal practice experience, Dr. Horowitz employs the full range of cutting-edge medical and surgical modalities in his practice. He particularly values the ability to use the most improved, up-to-date laser, pharmacological, and surgical therapies to successfully prevent (and, in some cases, even correct) profound visual impairment in conditions such as diabetic retinopathy and macular holes or epiretinal membranes.

Dr. Noga Harizman, MD is Associate Professor at Columbia University Irving Medical Center specializing in glaucoma and cornea. Dr. Harizman is a leader in minimally invasive glaucoma surgery techniques, both as a teacher and practitioner...