Wall-eye

CIDE DICTIONARY

Wall-eye, n. [See Wall-eyed.].

•  An eye in which the iris is of a very light gray or whitish color; -- said usually of horses.  Booth.  [1913 Webster]

  " Jonson has defined wall-eye to be “a disease in the crystalline humor of the eye; glaucoma.” But glaucoma is not a disease of the crystalline humor, nor is wall-eye a disease at all, but merely a natural blemish. Tully. In the north of England, as Brockett states, persons are said to be wall-eyed when the white of the eye is very large and distorted, or on one side."  [1913 Webster]
•  An American fresh-water food fish (Stizostedion vitreum) having large and prominent eyes; -- called also glasseye, pike perch, yellow pike, and wall-eyed perch.  [1913 Webster]

OXFORD DICTIONARY

Wall-eye, n.
1 a an eye with a streaked or opaque white iris. b an eye squinting outwards.
2 an American perch, Stizostedion vitreum, with large prominent eyes.

Derivative

wall-eyed adj.

Etymology

back-form. f. wall-eyed: ME f. ON vagleygr f. vagl (unrecorded: cf. Icel. vagl film over the eye) + auga EYE