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Leber's hereditary optic atrophy

[lā′bərz]
n.
  1. The degeneration of the optic nerve and papillomacular bundle with resulting rapid loss of central vision, occurring most often in males.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.