types
Last reviewed 01/2018
Typically, there is an exophoria which progresses to an intermittent exotropia and finally, to a constant exotropia. In other patients, the divergence starts as an intermittent or constant exotropia and remains stationary. Less commonly, exotropia results from uncorrected myopia. Many patients show a hereditary element with both exophoria and exotropia inherited as an autosomal dominant trait.