Strabismus (Crossed Eye): Symptoms & Signs

Medically Reviewed on 9/10/2019

Strabismus is an eye condition in which the eyes don't move together to look toward an object. One of the eyes may appear to look in or out, or turn up, or down. This can occur continuously or only at certain times, such as during sickness or stress.

Signs and symptoms of strabismus include crossed eyes or misaligned eyes. If strabismus does not appear until later in life, it can cause double vision. Other associated symptoms can include decreases in depth perception, decreased peripheral vision, eye strain, and headaches.

Causes of strabismus

An inborn problem with the part of the nervous system that controls the movements of the eyes causes strabismus in children. Conditions, such as stroke, can cause the condition to arise suddenly in adults.

Other strabismus (crossed eye) symptoms and signs


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Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.