High Quality Content by WIKIPEDIA articles! Retinal degeneration is the deterioration of the retina(1) caused by the progressive and eventual death of the cells of the retina.(2) There are several reasons for retinal degeneration, including artery or vein occlusion, diabetic retinopathy, R.L.F./R.O.P. (retrolental fibroplasia/ retinopathy of prematurity), or disease (usually hereditary).(3) These may present in many different ways such as impaired vision, night blindness, retinal detachment, light sensitivity, tunnel vision, and loss of peripheral vision to total loss of vision(4). Of the retinal degenerative diseases retinitis pigmentosa (RP) is a very important example.