Retinitis pigmentosa refers to a set of eye disorders caused by changes in 60 genes that damage the retina. Vision loss happens in persons with RP when the light-sensing cells of the retina progressively die off. The severity and speed with which the illness advances varies from person to person with RP, depending on the affected gene. RP may manifest itself in infancy (early onset RP) or in maturity. The initial symptom of RP is generally a loss of night vision, often known as night blindness. Blind spots in the peripheral (side) vision occur later as a result of RP. These blind patches eventually lead to decreased peripheral vision. The condition worsens over time, ultimately affecting central vision, which is required for skills like reading, driving, and recognizing faces.
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