Leber hereditary optic neuropathy (LHON) is a maternally transmitted inherited genetic disease underlying mutation of mitochondrial DNA (mtDNA). It is primarily an ophthalmological disorder, presenting predominantly in young adult males and characterized by acute or subacute bilateral optic atrophy that results in the loss of central vision. In most of the patients with LHON, visual dysfunction is the only manifestation of the disease. The incidence of LHON in Western Europe is 1/30000-1/50000; at least 1 in 14000 males is affected.
Category
Nervous system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
08 Diseases of the nervous system
Diseases of neuromuscular junction or muscle
Primary disorders of muscles
8C73 Mitochondrial myopathies
H00068 Leber hereditary optic atrophy
09 Diseases of the visual system
Disorders of the visual pathways or centres
9C40 Disorder of the optic nerve
H00068 Leber hereditary optic atrophy