NORD gratefully acknowledges Alessandro Iannaccone, MD, MS, Associate Professor of Ophthalmology, Director, Retinal Degeneration & Ophthalmic Genetics Service and Lions Visual Function Diagnostic Lab, University of Tennessee Health Science Center, Hamilton Eye Institute, for assistance in the preparation of this report.
Retinitis pigmentosa (RP) comprises a large group of inherited vision disorders that cause progressive degeneration of the retina, the light sensitive membrane that coats the inside of the eyes. Peripheral (or side) vision gradually decreases and eventually is lost in most cases. Central vision is usually preserved until late in these conditions. Some forms of RP can be associated with deafness, obesity, kidney disease, and various other general health problems, including central nervous system and metabolic disorders, and occasionally chromosomal abnormalities.
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