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Related Experiment Videos

Screening for refractive errors at age 1 year: a pilot study.

R M Ingram, M J Traynar, C Walker

    The British Journal of Ophthalmology
    |April 1, 1979
    PubMed
    Summary
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    Early vision screening in 1-year-old children using cycloplegic refraction is feasible. Specific refractive errors like hypermetropia at age 1 year strongly predict later squint and amblyopia development.

    Area of Science:

    • Ophthalmology
    • Pediatric Optometry
    • Vision Science

    Background:

    • Early detection of visual defects in infants is crucial for preventing long-term vision impairment.
    • Cycloplegic refraction is a standard method for assessing refractive errors in children.
    • Identifying risk factors for conditions like squint and amblyopia at an early age can guide timely interventions.

    Purpose of the Study:

    • To assess the feasibility and maternal acceptance of cycloplegic refraction for screening 1-year-old children.
    • To determine the range of refractive errors in a sample of 1-year-old infants.
    • To identify early refractive predictors for the development of squint and amblyopia.

    Main Methods:

    • Conducted cycloplegic refraction on 186 1-year-old children.

    Related Experiment Videos

  • Analyzed the distribution of refractive errors, including hypermetropia, astigmatism, and anisometropia.
  • Statistically evaluated the association between refractive errors at age 1 year and the later diagnosis of squint and/or amblyopia.

    • Main Results:

    • Cycloplegic refraction in 1-year-olds is technically possible and well-accepted by mothers.
    • Bilateral hypermetropia, astigmatism, or anisometropia at age 1 year showed a significant association (P < 10⁻⁴) with later squint/amblyopia.
    • +2.50 D or more of hypermetropia in any meridian at age 1 year was highly significantly associated (P = 5 x 10⁻⁸) with squint/amblyopia.

    Conclusions:

    • Cycloplegic refraction is a viable screening tool for visual defects in 1-year-old infants.
    • Specific refractive error patterns at 1 year of age can predict the risk of developing squint and amblyopia.
    • Further refinement of screening age and abnormality criteria may be necessary, with meridional hypermetropia being a key potential indicator.