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Binocular Function of Intermittent Exotropia Before and After Surgery.
1Department of Ophthalmology, Teikyo University School of Medicine, Tokyo, Japan
Japanese Journal of Ophthalmology
|May 9, 2001
Summary
Surgical correction improved binocular function in most intermittent exotropia patients. Normal retinal correspondence after surgery was linked to better outcomes, while its absence suggested potential issues with dissociated vertical deviation.
Area of Science:
- Ophthalmology
- Strabismus Research
- Binocular Vision
Background:
- Intermittent exotropia is a common strabismus condition affecting binocular vision.
- Surgical outcomes and factors influencing recovery in intermittent exotropia require further investigation.
Purpose of the Study:
- To evaluate binocular function in intermittent exotropia patients pre- and post-surgery.
- To identify factors affecting surgical success in intermittent exotropia.
Main Methods:
- Retrospective analysis of 402 patients undergoing first-time strabismus surgery for intermittent exotropia.
- Assessment of retinal correspondence and stereo acuity before and after surgical intervention.
Main Results:
- Pre-surgery, 91.3% of patients exhibited good stereo acuity.
- Post-surgery, retinal correspondence normalized in 74.9% of patients.
- Patients with persistent abnormal retinal correspondence showed significantly larger eye deviation and higher incidence of vertical strabismus, primarily dissociated vertical deviation.
Conclusions:
- Surgical treatment can restore normal binocular function in the majority of intermittent exotropia patients.
- Dissociated vertical deviation may significantly impact binocular function in cases where normal retinal correspondence is not achieved post-surgery.
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