Any Leber congenital amaurosis in which the cause of the disease is a mutation in the GDF6 gene. The disease is MONDO_0014145 (Leber congenital amaurosis 17). Also known as: GDF6 Leber congenital amaurosis, LCA17, Leber congenital amaurosis caused by mutation in GDF6, Leber congenital amaurosis type 17.