Definition of Walleye

Walleye: 1. Divergent strabismus (exotropia) in which the eye turns outward away from the nose. 2. A dense white opacity (leukoma) of the cornea. 3. Large staring eyes, like those of certain fish such as the pike.

All of these meanings relate to the walleyed pike, a freshwater perch. When the walleyed pike is dead, its large divergent eyes quickly become opaquely white. From the Old Norse "vagl-eygr," from "vagl" (beam) and "eygr" (eyed).

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=24324
Last Editorial Review: 9/20/2012