Leber Optic Atrophy and Dystonia, also known as marsden syndrome, is related to hereditary optic neuropathy and neuropathy, and has symptoms including athetosis, dystonia and muscle spasticity. An important gene associated with Leber Optic Atrophy and Dystonia is MT-ND6 (Mitochondrially Encoded NADH:Ubiquinone Oxidoreductase Core Subunit 6), and among its related pathways/superpathways are Metabolism and Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins.. Affiliated tissues include skeletal muscle and eye, and related phenotypes are intellectual disability and spasticity