Your eyes need to work together as a team in order to see clearly. Part of any comprehensive eye examination will include a test to determine how well your eyes are functioning together. Binocular vision testing includes assessing eye alignment, stereopsis (depth perception), eye tracking and other eye movements.

Reasons for binocular vision testing 

Binocular vision testing can be used to detect eye turn, or strabismus.  Strabismus is a condition where the eyes are not properly aligned. Eventually, strabismus can lead to amblyopia (lazy eye), as well as poor depth perception and problems with binocular vision.

Binocular vision testing is part of all comprehensive eye examinations given to young children because they are at a higher risk of developing problems with eye alignment. Amblyopia is currently the leading cause of vision loss in children.