Improvement in Fusion and Stereopsis Following Surgery for Intermittent Exotropia

Purpose: To evaluate fusion stereopsis in patients with intermittent exotropia before and after strabismus surgery. Methods: Fifty-three patients (mean age: 11.8 years, range: 5 to 25 years) with intermittent exotropia were enrolled. Fusion was measured with the Worth 4-dot test. Near stereopsis was examined with Titmus and stereoscopic test charts (created in China by Shao-Ming Yan). Distance stereopsis was tested with random-dot stereograms...