Heterophoria

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Heterophoria

Heterophoria (/ˌhɛtəroʊˈfɔːriə/; from Greek: ἕτερος, heteros, "different" + φορά, phorá, "bearing") is a condition of the eye where the two eyes have a tendency to deviate from their normal alignment when the fusion reflex is not stimulated. This is different from strabismus, where the misalignment is constant and visible to others.

Types of Heterophoria

There are three main types of heterophoria: esophoria, exophoria, and hyperphoria.

  • Esophoria is a condition where the eyes have a tendency to turn inward.
  • Exophoria is a condition where the eyes have a tendency to turn outward.
  • Hyperphoria is a condition where one eye has a tendency to turn upward.

Causes

Heterophoria can be caused by a number of factors, including genetics, eye strain, and neurological disorders. It can also be a result of an injury to the eye muscles or nervous system.

Symptoms

Common symptoms of heterophoria include double vision, eye strain, headaches, and difficulty focusing on objects. These symptoms may be more noticeable when the person is tired or under stress.

Treatment

Treatment for heterophoria often involves vision therapy, which includes exercises designed to improve eye coordination and alignment. In some cases, corrective lenses or eye surgery may be recommended.

See Also

External links

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