ABCA4 and Stargardt disease: Variants in the ABCA4 gene have been linked to a broad spectrum of inherited retinal degenerations, including Stargardt macular dystrophy (OMIM #248200) (1, 2, 3, 4, 5, 6, 7, 8, 9) fundus flavimaculatus (10, 11, 12, 13), autosomal recessive retinitis pigmentosa (OMIM #601718) (8, 13, 14, 15, 16, 17, 18), cone-rod dystrophy (OMIM #604116) (15, 19, 20, 21, 22, 23, 24), and potentially contribute to age-related macular degeneration (1, 2, 19, 25, 26, 27, 28).