Macular Dystrophy, Patterned, 2, also known as patterned macular dystrophy 2, is related to butterfly-shaped pigment dystrophy and isolated macular dystrophy. An important gene associated with Macular Dystrophy, Patterned, 2 is CTNNA1 (Catenin Alpha 1). Affiliated tissues include eye and retina, and related phenotypes are pattern dystrophy of the retina and reduced visual acuity