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Distribution of mutation in mitochondrial DNA or OPA1 in a cohort of primary optic atrophy patients. Mutations in mitochondrial DNA or OPA1 are presented as a fraction of 64 patients evaluated through the genetic testing service at the Massachusetts Eye and Ear Infirmary. Fifty-six percent of patients with primary optic atrophy do not have a mutation in mitochondrial DNA, OPA1, or OPA3.
