Since retinitis pigmentosa begins as rod degeneration, the patient first notices increasing difficulty in night vision, followed by difficulty seeing in the periphery.Slowly progressive constriction of the visual field leads to tunnel vision.
This will also determine if there is any cone involvement.
Recently, gene testing for defects is being done to clarify the basic cause for RP and assist in ultimately finding a treatment.
As of now there is no specific cure for retinitis pigmentosa.
In this progressive degeneration of the retina, the peripheral vision slowly constricts and central vision is usually retained until late in the disease.
Retinitis pigmentosa is an inherited condition which involves both eyes.