hypermature cataract

[hī′pər-mə-chur, -tur]
n.
  1. A cataract in which the lens becomes either dehydrated and flattened or liquid and soft, with the nucleus at the bottom of the capsule.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.