Leber congenital amaurosis 4 (MONDO_0011458) is any Leber congenital amaurosis in which the cause of the disease is a mutation in the AIPL1 gene. Also known as: AIPL1 Leber congenital amaurosis, LCA4, Leber congenital amaurosis caused by mutation in AIPL1, Leber congenital amaurosis type 4.