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Related Experiment Videos

Higher-order aberrations in children.

Caitriona Kirwan1, Michael O'Keefe, Hansjorg Soeldner

  • 1The Childrens University Hospital, University College, Dublin, Ireland.

American Journal of Ophthalmology
|January 3, 2006
PubMed
Summary

Higher-order aberrations are present in children and are influenced by refractive error, with myopes showing higher levels. Cycloplegia had minimal impact on these aberrations, suggesting refractive error is a key factor.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Higher-order aberrations (HOAs) contribute to visual quality beyond standard refractive error.
  • Understanding HOAs in pediatric populations is crucial for comprehensive eye care.
  • Refractive error and accommodation can potentially influence HOA measurements.

Purpose of the Study:

  • To quantify and characterize higher-order aberrations in children.
  • To investigate the impact of refractive error on HOAs in pediatric eyes.
  • To assess the influence of cycloplegia on HOA measurements in children.

Main Methods:

  • An observational, cross-sectional study was conducted in a clinical setting.
  • Aberrometry using a wavefront analyzer was performed on 162 eyes of 82 children (mean age 6.7 years).

Related Experiment Videos

  • HOAs were measured before and after cycloplegia (cyclopentolate 1%) in a subgroup to evaluate accommodation's effect.

    • Main Results:

    • Significant levels of total, third-, fourth-, and fifth-order aberrations were quantified.
    • Myopic children exhibited statistically significant higher levels of total and fourth-order aberrations compared to hyperopes.
    • Cycloplegia demonstrated minimal influence on the measured higher-order aberrations.

    Conclusions:

    • Children exhibit significant higher-order aberrations.
    • Refractive error, particularly myopia, is associated with increased HOAs in children.
    • Cycloplegia does not substantially alter HOA measurements in this pediatric cohort.