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Related Experiment Video

Updated: Apr 27, 2026

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia
06:19

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia

Published on: September 27, 2024

690

Amblyopia screening in Bulgaria.

Alexander Oscar, Sylvia Cherninkova, Vasil Haykin

    Journal of Pediatric Ophthalmology and Strabismus
    |June 28, 2014
    PubMed
    Summary

    This study found a 4.3% prevalence of amblyopia in school-aged children in northwestern Bulgaria, with late first eye exams being common. Establishing national screening programs is crucial for early detection and treatment of childhood vision disorders.

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    Area of Science:

    • Ophthalmology
    • Public Health
    • Pediatrics

    Background:

    • Amblyopia, or 'lazy eye,' is a leading cause of preventable vision impairment in children.
    • Early detection and treatment are critical for successful amblyopia management.
    • Bulgaria currently lacks a national systematic screening program for childhood vision disorders.

    Purpose of the Study:

    • To determine the prevalence of amblyopia among school-aged children in northwestern Bulgaria.
    • To ascertain the average age of the first ophthalmological examination in this population.
    • To provide data supporting the establishment of a national vision screening program.

    Main Methods:

    • A cross-sectional study involving 2,054 children aged 6 to 12 years.
    • Comprehensive eye examinations including visual acuity, stereopsis, orthoptics, motility, and refraction.

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  • Data collected on age at first examination and prevalence of amblyopia, refractive errors, and strabismus.

    • Main Results:

    • Amblyopia was detected in 4.3% of children, with higher prevalence in younger age groups.
    • The majority of children (90.6%) received their first eye examination during the study.
    • Refractive errors were found in 19.7% and strabismus in 1.2% of the children, with prevalence increasing with age.

    Conclusions:

    • The high rate of late first eye examinations highlights the absence of effective screening programs in Bulgaria.
    • "Do Good" project demonstrated a viable model for implementing vision screening in schools.
    • A national screening program is essential to ensure timely diagnosis and treatment of amblyopia in Bulgarian children.