• JNMA J Nepal Med Assoc · Aug 2022

    Non-strabismic Binocular Vision Dysfunction among the Medical Students of a Teaching Hospital: A Descriptive Cross-sectional Study.

    • Pooja Shrestha and Raju Kaiti.
    • Department of Ophthalmology, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal.
    • JNMA J Nepal Med Assoc. 2022 Aug 1; 60 (252): 693696693-696.

    IntroductionNon-strabismic binocular vision dysfunctions are visual disorders that affect the person's binocular vision and visual outcome while performing near tasks and are very common among medical students. This study aimed to find out the prevalence of non-strabismic binocular vision dysfunction among the medical students of a teaching hospital.MethodsA descriptive cross-sectional study was conducted among medical students of a teaching hospital from 25 April 2022 to 25 May 2022. Ethical approval was obtained from the Institutional Review Committee of the same institute (Reference number: 139/17). A detailed ocular evaluation including history, visual acuity, refraction, and detailed orthoptic evaluation was done. Convenience sampling was done. Point estimate and 95% Confidence Interval were calculated.ResultsOut of 284 students, 79 (27.81%) (22.60-33.02, 95% Confidence Interval) had non-strabismic binocular vision dysfunctions. Convergence insufficiency was the commonest one seen in 38 (48.10%), followed by divergence excess seen in 8 (10.12%) and convergence excess seen in 8 (10.12%) students.ConclusionsThe prevalence of non-strabismic binocular vision dysfunction among medical students was lower than in other studies conducted in similar settings.Keywordsbinocular vision; convergence excess; convergence insufficiency; prevalence.

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