Abstract
Mitochondrial diseases can affect patients in a systematic or organic way. A type of condition is Leber’s hereditary optic neuropathy, which causes atrophy of the optic nerve and causes a reduction of the visual field and visual acuity. On occasion, this disease does not show significant findings in the fundus and it is necessary to further explore it as completely as possible in order to find the problem. In this paper we will find the way in which the patient was handled from the time of the probable diagnosis until its corroboration and the latest information about the disease.