Cilia- and flagella-associated protein 418 (CFAP418) is a causative gene for retinitis pigmentosa (7–9), cone-rod dystrophy (9–11), Bardet-Biedl syndrome (BBS) (12, 13), and combined retinal dystrophy and macular atrophy (14). The gene discussed is CFAP418; the disease is retinitis pigmentosa.