By analyzing the most recurrent causative genes, we found the highest prevalence of CME in patients with autosomal dominant RP forms due to variants in RHO (58.2%), PRPF8 (72.7%), and PRPF3 (75.0%), whereas the lowest prevalence was observed in X-linked cases with mutations in RP2 (3.4%) and RPGR (8.8%). This evidence concerns the gene RP2 and retinitis pigmentosa 1.