Binocular vision is the mechanism through which the brain combines data from a person's two eyes to produce a single, distinct, cohesive image.

Early on, binocular vision issues like convergence insufficiency can make it difficult for a child to complete visual tasks in the classroom.

Children with amblyopia (lazy eye) or strabismus (eye turn) also suffer from binocular vision dysfunction because they are unable to use their two eyes effectively as a team.

Adults who have suffered a concussion or other form of severe brain damage, a stroke, or an eye turn brought on by nerve palsy might also experience binocular vision issues.