Leber Congenital Amaurosis 1, also known as lca1, is related to cone-rod dystrophy 6 and senior-loken syndrome 1, and has symptoms including photophobia An important gene associated with Leber Congenital Amaurosis 1 is GUCY2D (Guanylate Cyclase 2D, Retinal), and among its related pathways/superpathways are Visual phototransduction and Ciliopathies. The drugs Prednisolone and Prednisolone acetate have been mentioned in the context of this disorder. Affiliated tissues include retina and eye, and related phenotypes are nystagmus and reduced visual acuity