Clinical Features of OPA1-Related Optic Neuropathy: A Focus on Genetic Modifiers (Video)

Dominant optic atrophy (DOA) is the most common hereditary optic neuropathy, and known mutations in OPA1 account for 40-60% of cases. Previous studies investigating clinical features in DOA patients with OPA1 mutations have been limited to a few mutations and few include OPA1 copy number variant (CNV) analyses or mitochondrial genomic analyses. We hypothesized that some clinical presentations depend upon both OPA1 status and the background mitochondrial haplogroup.