[Leber's hereditary optic neuropathy]

233 personal cases of leber's optic neuropathy have been analyzed by the authors in order to present clinical symptoms, evolution and genetic aspects. A group of 23 patients, in which 7 presented the disease and the others were asymptomatic members of families with the disease, was analyzed on evaluation of abnormalities of evoked visual responses; An other similar group, in repartition of subjects, was analyzed on frequency of cardiovascular abnormalities. The results have been analyzed and discussed about the role of predictive symptoms in diagnosis of the acute phase of the disease.