Retinitis Pigmentosa is an inherited disease that affects the photoreceptor cells of the retina. These are cells that process light and help us to see. The first symptom is usually night blindness. Other symptoms are decrease in color vision, and eventually peripheral vision. When peripheral vision is progressively lost, this ends up in what is referred to as tunnel vision. This is like looking through a keyhole.
Since this is hereditary, family members should be screened for the disease.
To date, there is still no treatment for Retinitis Pigmentosa. As this disease is progressive, vision rehabilitation can help you maximize your visual potential through devices and solutions.