label: Vitelliform Macular Dystrophy
label_lc: vitelliform macular dystrophy
description: A rare genetic disorder characterized by macular degeneration in the retina resulting in progressive loss of central vision with retention of the peripheral vision. It may be of early onset, autosomal dominant inherited and caused by mutations in the BEST1 gene (BEST disease) or late onset, caused by mutations in the PRPH2 gene.