Nork Lab

Electrophysiologic Testing of the Visual System

Our research focuses on the mechanisms by which various ocular diseases affect the outer retina (especially the rods and cones) and how injury to the outer retina might, in turn, affect disease pathogenesis. For example, Dr. Nork and his colleagues have found selective blue cone loss in retinal detachment and diabetic retinopathy. They are currently investigating the possibility that the retinal cones may also be injured in glaucoma – a disease that is not traditionally associated with the outer retina. Working with other members of the Department, they have described morphologic changes in the photoreceptors in post-mortem human eyes that were donated by people who carried a diagnosis of glaucoma.