A group of degenerative diseases of the retina, usually hereditary, marked by progressive loss of retinal response, contraction of the field of vision first including loss of peripheral vision then severe tunnel vision and ultimately blindness.
The name given to a group of disorders of the Retina, all of which result in a progressive reduction in vision. See Retinitis Pigmentosa Details.
(RP): Set of inherited retinal degenerations. Death of photoreceptors gradually leads to night-blindness and to loss of peripheral vision, causing tunnel vision.