- an effusion of pus into the anterior chamber of the eye.
Origin of hypopyon
1650–60; hypo- + Greek pýon pus, discharge from a sore
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hypopyon
It usually comes on about the third day and may be accompanied by hypopyon.
In some cases the anterior chamber is invaded by pus (hypopyon).
(iv) For hypopyon ulcer associated with lachrymal obstruction.
(iii) To evacuate the anterior chamber in bad corneal ulceration, especially when associated with hypopyon and tension.
- The presence of pus or a puslike fluid in the anterior chamber of the eye.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.