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Refractive error and visual impairment in school children in Northern Ireland
L O'Donoghue1, J F McClelland, N S Logan
1School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine, BT52 1SA, UK. l.odonoghue@ulster.ac.uk
The British Journal of Ophthalmology
|May 25, 2010
Summary
Refractive errors like myopia and hyperopia are common in Northern Irish school children, with older children showing higher myopia rates. Strategies are needed to improve spectacle wear compliance.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Public Health
Background:
- Refractive errors, including myopia and hyperopia, are significant causes of visual impairment in children.
- Population-based data on refractive error prevalence in school-aged children is crucial for targeted interventions.
Purpose of the Study:
- To determine the prevalence of refractive error (myopia and hyperopia) and visual impairment in a representative sample of white school children in Northern Ireland.
- To establish baseline data for future public health strategies concerning childhood vision.
Main Methods:
- A population-based, cross-sectional study (Northern Ireland Childhood Errors of Refraction study) was conducted.
- 661 12-13-year-olds and 392 6-7-year-olds were examined using cycloplegic autorefraction and visual acuity assessments.
- Myopia defined as spherical equivalent refraction (SER) ≥ -0.50DS; hyperopia as SER ≥ +2.00DS.
Main Results:
- Myopia prevalence was 2.8% in younger and 17.7% in older children.
- Hyperopia prevalence was 26% in younger and 14.7% in older children.
- Presenting visual impairment (≥ 0.30 logMAR) was 3.6% in older and 1.5% in younger children; 25% of children did not bring spectacles to school.
Conclusions:
- This study provides the first robust population-based data on refractive error and visual impairment in Northern Irish school children.
- There is a significant need for strategies to enhance spectacle wear compliance among children.
- Findings highlight the importance of regular vision screening and timely correction of refractive errors in pediatric populations.
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