Monocular eye closure in intermittent exotropia
F. M. Wang and G. Chryssanthou
Department of Ophthalmology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY 10467.
Monocular eye closure in bright illumination is a common occurrence in
intermittent exotropia. In a series of patients with intermittent exotropia
with normal retinal correspondence and stereopsis while the eyes were in
the straight position, monocular eye closure occurred in 90% of patients
with normal retinal correspondence while exotropic and in only 35% of
patients with abnormal retinal correspondence while exotropic. Monocular
eye closure occurs in people with intermittent exotropia to avoid diplopia
and visual confusion even though these are not usual complaints. The
cortical adaptation of anomalous retinal correspondence prevents diplopia
and visual confusion and obviates the need to close one eye in bright
sunlight.
