Leber congenital amaurosis 11 (MONDO_0013454) is any Leber congenital amaurosis in which the cause of the disease is a mutation in the IMPDH1 gene. Also known as: IMPDH1 Leber congenital amaurosis, LCA11, Leber congenital amaurosis caused by mutation in IMPDH1, Leber congenital amaurosis type 11.