exotropia (accomodative)

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Accommodative exotropia is a relatively uncommon disorder which results from uncorrected myopia. Less accommodation is required for near work in such patients so that normal convergence is minimised and the eyes tend to turn outwards.

Presentation is usually after 5 years of age as most infants are hyperopic at birth. Not infrequently, the patient is an adolescent who prefers poor vision to wearing glasses. Symptoms are minimal as sensory mechanisms are usually normal. There is often a family history of myopia.

Examination shows an outward deviation of the eyes. This is intermittent at first but becomes constant if not corrected.

Treatment is by correcting the myopia with concave lenses.

Last reviewed 01/2018

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