You might guess that walleyed has an etymological connection with wall, but that's not the case. Rather, it is derived from wawil-eghed, a Middle English translation of the Old Norse word vagl-eygr, from vagl ("beam") and eygr ("eyed").
Is Wall eyed an offensive term?
adj. 1. Often Offensive Affected with exotropia.
What does Wall eyed horse mean?
By Maureen Malone | Updated September 26, 2017. In horses, a blue colored eye is referred to as a wall eye. Horses may have two blue eyes, or one blue and one brown eye. The blue color is created by a lack of pigmentation in the iris.