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[Binocular function of intermittent exotropia before and after surgery]
1Department of Ophthalmology, Teikyo University School of Medicine, Japan.
Nippon Ganka Gakkai Zasshi
|September 9, 2000
Summary
Surgical correction for intermittent exotropia effectively restores binocular function in most patients. However, abnormal retinal correspondence post-surgery may indicate the influence of dissociated vertical deviation on outcomes.
Area of Science:
- Ophthalmology
- Strabismology
- Neuroscience
Context:
- Intermittent exotropia is a common strabismus affecting binocular vision.
- Surgical intervention is a primary treatment for intermittent exotropia.
- Understanding factors influencing surgical outcomes is crucial for patient management.
Purpose:
- To evaluate binocular function in intermittent exotropia patients before and after surgical correction.
- To identify factors influencing the success of strabismus surgery.
Summary:
- This study analyzed 402 patients undergoing their first surgical correction for intermittent exotropia.
- Pre-operative stereo acuity was good in 91.3% of patients.
- Post-surgery, normal retinal correspondence improved from 52.2% to 74.9%.
- Patients with persistent abnormal retinal correspondence showed significantly larger eye deviations and a high prevalence of vertical strabismus, particularly dissociated vertical deviation.
Impact:
- Surgical treatment can restore normal binocular function in the majority of intermittent exotropia cases.
- Dissociated vertical deviation appears to be a significant factor impacting binocular function when normal retinal correspondence is not achieved post-surgery.