Bilateral Occlusion Reduces the Ocular Deviation in Intermittent Exotropia.

ABSTRACT:

Purpose

The most common form of strabismus, intermittent exotropia, is thought to become manifest when the drive to fuse is overcome by excessive divergent muscle tone. This principle is tested by examining the alignment of the eyes in the absence of vision. We compare the ocular deviation in patients with intermittent exotropia under conditions of monocular versus binocular occlusion.

Methods

This prospective study of a patient cohort referred to our laboratory enrolled 18 patients with typical findings of well-controlled intermittent exotropia. Eye positions were recorded with video eye trackers while patients looked at a fixation spot at a distance of 57 cm. One eye was occluded, and the resulting ocular deviation was measured. Both eyes were then occluded, and the ocular

SUBMITTER: Economides JR 

PROVIDER: S-EPMC7794258 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature