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Prevalence and management of divergence excess
American Journal of Optometry and Physiological Optics
|February 1, 1979
Summary
Divergence excess, a binocular vision anomaly, was studied in 250 patients. Nonsurgical treatments, particularly physiological diplopia, showed promising results for divergence excess, with 10 of 14 patients achieving satisfactory outcomes.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Divergence excess is a condition affecting binocular vision.
- Understanding its prevalence and effective treatments is crucial for clinical practice.
- Previous research has explored various etiological factors and management strategies.
Purpose of the Study:
- To assess the prevalence of divergence excess in a clinical setting.
- To categorize subtypes of divergence excess.
- To evaluate the effectiveness of nonsurgical treatments, emphasizing physiological diplopia.
Main Methods:
- Retrospective analysis of 250 consecutive patients at a binocular vision clinic.
- Classification of divergence excess cases into predefined etiological groups.
- Assessment of treatment outcomes for patients receiving nonsurgical interventions.
Main Results:
- Divergence excess was identified in 67 out of 250 patients (26.8% prevalence).
- Subgroups included secondary to esotropia surgery, anisometropic amblyopes, basic, convergence weakness, and primary divergence excess.
- In the primary divergence excess group (18 patients), 14 underwent nonsurgical treatment, with 10 achieving satisfactory outcomes and 2 showing improvement.
Conclusions:
- Divergence excess appears to be a significant finding in binocular vision clinics.
- Nonsurgical management, especially using physiological diplopia, demonstrates a favorable response rate.
- Further research into specific treatment protocols for different divergence excess subtypes is warranted.