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Strabismus is the medical term for misalignment of the eyes. One eye may be directed straight ahead while the other is turned inward (esotropia), outward (exotropia), upward (hypertropia), or downward (hypotropia). The misalignment may always be noticeable, or it may come and go. The misaligned eye may straighten at times and the straight eye may turn. Strabismus can occur in newborn babies, but it is more likely to appear later in infancy or early childhood. It can also occur in older children and adults. If treatment of strabismus is delayed, amblyopia (lazy eye) may develop, leading to loss of vision in the eye that is not being used. Strabismus is caused, or partially caused, by errors of refraction (the way light enters the eye), illness, injury or heredity.
Signs and Symptoms
An eye that is not straight; squinting one eye in bright sunlight; tilting the head in a specific direction; signs of faulty depth perception such as bumping into things; double vision in adults who have strabismus