Retinitis Pigmentosa 18, also known as rp18, is related to retinitis pigmentosa 1 and retinitis pigmentosa 33. An important gene associated with Retinitis Pigmentosa 18 is PRPF3 (Pre-MRNA Processing Factor 3), and among its related pathways/superpathways is Metalloprotease DUBs. Affiliated tissues include retina and eye, and related phenotypes are nyctalopia and rod-cone dystrophy