Normal retina
Normal retina

Retina with retinitis pigmentosa
Retina with retinitis pigmentosa

The retina is the layer of light-sensing cells lining the back of your eye that converts light rays into nerve impulses. The impulses are sent through the optic nerve to your brain, where they are recognized as images.

With RP, cells in the retina called rods and cones die. With most forms of RP, rods — which are mainly in the outer regions of the retina and are responsible for our peripheral and night vision — degenerate first. When the retina’s more centrally-located cones are affected, the result is loss of color perception and central (reading) vision.

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