Leber Congenital Amaurosis 9, also known as lca9, is related to retinal degeneration and leber plus disease. An important gene associated with Leber Congenital Amaurosis 9 is NMNAT1 (Nicotinamide Nucleotide Adenylyltransferase 1), and among its related pathways/superpathways are Metabolism of water-soluble vitamins and cofactors and Visual phototransduction. Affiliated tissues include retina and eye, and related phenotypes are photophobia and reduced visual acuity