Optic Atrophy 8, also known as opa8, is related to optic atrophy with or without deafness, ophthalmoplegia, myopathy, ataxia, and neuropathy and optic atrophy 1. An important gene associated with Optic Atrophy 8 is OPA8 (Optic Atrophy 8 (Autosomal Dominant)), and among its related pathways/superpathways is Chaperonin-mediated protein folding. Affiliated tissues include skeletal muscle, and related phenotypes are mitral regurgitation and central scotoma