Cellosaurus Disease Terminology Hereditary Retinal Dystrophy Retinitis Pigmentosa Retinitis Pigmentosa Cellosaurus Disease or Syndrome A rare inherited retinal dystrophy disorder characterized by spots of black bone-spicule pigmentation of the retinal pigment epithelium. It is manifested with decreased vision in low light or in the night, followed by decreased peripheral vision, and, eventual decreased central vision. It may lead to blindness. C4013933 C85045 Retinitis Pigmentosa