Macular Dystrophy, Vitelliform, 5, also known as vitelliform macular dystrophy 5, is related to macular dystrophy, vitelliform, 1 and macular dystrophy, vitelliform, 4. An important gene associated with Macular Dystrophy, Vitelliform, 5 is IMPG2 (Interphotoreceptor Matrix Proteoglycan 2). Affiliated tissues include retina, and related phenotypes are reduced visual acuity and macular dystrophy