Ophthalmology Times
In results that challenge conventional models for color vision circuitry, researchers used gene therapy in a dichromatic primate model to add a third photopigment and bring about red-green vision. This successful treatment of adult monkeys with a congenital color vision defect shows that the adult nervous system can respond to newly added sensory input and is encouraging for the possibility of using gene therapy to treat various cone-based vision disorders in human adults, said Katherine Mancuso, MD, of the Department of Ophthalmology, Medical College of Wisconsin, Milwaukee.