Although this review focuses on STGD3 and ELOVL4 mutation-associated disorders, recessive STGD1 (also known as fundus flavimaculatus) represents the more prevalent cases of juvenile-onset Stargardt macular dystrophy diseases (44, 45, 46, 47, 48, 49, 50, 51). The gene discussed is ELOVL4; the disease is Stargardt disease.