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