Retinitis Pigmentosa (RP) |
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"Retinitis pigmentosa, also known as RP, refers to a group of inherited diseases causing retinal degeneration. The retina is a thin piece of tissue lining the back of the eye. It converts light into electrical signals that the brain interprets as vision. People with RP experience a gradual decline in their vision, because photoreceptor cells in the retina degenerate. Forms of RP and related diseases include Usher syndrome, Leber congenital amaurosis, and Bardet-Biedl syndrome, among others." (from blindness.org) What is it? One person's experience Some visual examples |