what are the symptoms for retinitis pigmentosa
Retinitis Pigmentosa Symptoms and Signs. 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.A small area of central vision in both eyes usually persists for years.P is sometimes associated with other systemic illnesses. Usher syndrome, characterized by retinitis pigmentosa and neural hearing loss, is the most common cause of deaf-blindness in the United States. The hearing loss usually is diagnosed earlier than the eye changes. Medically Reviewed by a Doctor on 6/4/2015.