Among the 60 different genes associated with RP found in their cohort, the most common genes were RPGR, USH2A, RHO, RP1, RP2, PDE6B, PRPF31, NR2E3, RDH12, SNRNP200, PRPF8, PRPF3, CNGB1, EYS, and PRPH2. This evidence concerns the gene PRPH2 and retinitis pigmentosa 1.