Mutations of the human CRX gene are associated with diseases characterized by photoreceptor cell destruction: Autosomal-dominant cone-rod dystrophy 2, Leber’s congenital amaurosis-7 (LCA7) (both autosomal-recessive and -dominant patterns), and, in rare cases, autosomal-dominant RP [108,109,110,111,112]. The gene discussed is CRX; the disease is Leber congenital amaurosis 7.