Deafness, Cataract, Retinitis Pigmentosa, and Sperm Abnormalities An important gene associated with Deafness, Cataract, Retinitis Pigmentosa, and Sperm Abnormalities is DFCTRPS (Deafness, Cataract, Retinitis Pigmentosa, And Sperm Abnormalities). Affiliated tissues include skin, and related phenotypes are hearing impairment and cataract