Strabismus (struh-BIS-mus) is a condition in which the eyes are not properly aligned with one another. You may have heard this referred to as “cross-eyed”, “wall-eye” or “lazy eye”. An adult patient may have had this condition since childhood (that was either never diagnosed or unsuccessfully treated), experienced an illness or injury later in life, or in some cases, unfortunately, there is no identifiable reason that caused misalignment of the eyes.