Macular Dystrophy, Patterned, 1, also known as patterned macular dystrophy 1, is related to macular dystrophy, patterned, 2 and patterned macular dystrophy. An important gene associated with Macular Dystrophy, Patterned, 1 is PRPH2 (Peripherin 2). Affiliated tissues include retina, and related phenotypes are photophobia and nyctalopia