[Leber's hereditary optic neuropathy with onset at the age of 54 years].

Abstract

We report a 55-year-old Japanese man who had an onset of bilateral progressive blurring of vision at age 54 years. His younger sister had diminished visual acuity since 14 years of age. On neurologic examination, bilateral optic atrophy was present. He could only count the digit numbers at 40 cm-distance with his right eye, and the visual acuity of the left… (More)

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