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General binocular dysfunctions in an urban optometry clinic
Journal of the American Optometric Association
|July 1, 1985
Summary
General binocular dysfunction affects over 20% of non-presbyopic patients, with accommodative issues being most common. Vergence dysfunctions like esophoria and convergence insufficiency also present challenges, often alongside accommodative problems.
Area of Science:
- Optometry
- Ophthalmology
- Public Health
Background:
- Binocular vision dysfunctions are common causes of asthenopia.
- Understanding prevalence in specific populations is crucial for targeted interventions.
Purpose of the Study:
- To determine the prevalence of general binocular dysfunction with asthenopia.
- To identify common types of binocular and accommodative dysfunctions in non-presbyopes.
Main Methods:
- Cross-sectional study at an urban optometry clinic.
- Inclusion of non-presbyopic patients, including municipal workers and students.
- Assessment of binocular vision, accommodation, and vergence.
Main Results:
- Overall prevalence of symptomatic general binocular dysfunction was 21.0%.
- Accommodative dysfunctions were most common (16.8%).
- Symptomatic near esophoria (5.9%) and convergence insufficiency (4.2%) were also observed, often overlapping with accommodative issues.
Conclusions:
- General binocular dysfunction is prevalent in non-presbyopic patients presenting at urban optometry clinics.
- Accommodative and vergence dysfunctions are significant contributors, highlighting the need for comprehensive eye exams.