These include autosomal recessive Leber congenital amaurosis (LCA1; MIM#204000), autosomal dominant or recessive cone-rod dystrophy 6 (CORD6; MIM#601777), choroidal dystrophy, central areolar (CACD1; MIM#215500) and night blindness, congenital stationary, Type1I (CSNB1I; MIM#618555). Here, GUCY2D is linked to central areolar choroidal dystrophy.