Variants in the ABCA4 gene are now understood as a spectrum of phenotypes–macular dystrophy/atrophy, cone-rod degeneration, rod-cone degeneration—collectively termed ABCA4-Related Retinopathy (ABCA4R), affecting approximately 1 in 8000–10,000 individuals worldwide [5–7]. This evidence concerns the gene ABCA4 and Atrophy.