Kearns-Sayre syndrome

[kûrnzsâr]
n.
  1. A syndrome usually occurring before the age of 20 and characterized by pigmentary retinal dystrophy, cardiomyopathy, and varied cranial nerve impairment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.