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Visual acuity in a national sample of 10 year old children
Insights
Visual acuity defects in 10-year-olds were 22.1%, more common in girls. Severe vision defects decreased significantly from 12.9% to 7.3% over a decade, impacting child vision screening programs.
Area of Science:
- Ophthalmology
- Pediatric Health
- Public Health
Background:
- Visual acuity defects are a significant concern in childhood.
- Understanding trends in visual impairment is crucial for public health initiatives.
- Previous studies have established baseline prevalence rates in earlier birth cohorts.
Purpose of the Study:
- To determine the prevalence of visual acuity defects in 10-year-old children from the 1970 birth cohort.
- To compare current findings with data from the 1958 birth cohort to identify trends.
- To assess the implications of these trends for pediatric vision screening and ophthalmic services.
Main Methods:
- Analysis of visual acuity data from a 1970 birth cohort of 10-year-old children.
- Comparison of prevalence rates with historical data from the 1958 birth cohort.
- Statistical analysis to evaluate differences in defect prevalence based on gender and social class.
Main Results:
- The prevalence of visual acuity defects in the 1970 cohort was 22.1%, with one-third having defects worse than 6/9.
- Defects were more prevalent among girls, and the relationship with social class was complex.
- A decline in the prevalence of severe visual defects (worse than 6/9) was observed, decreasing from 12.9% in the 1958 cohort to 7.3% in the 1970 cohort.
Conclusions:
- While overall visual acuity prevalence remained stable, there has been a notable reduction in severe visual defects among children over a decade.
- Findings underscore the need for ongoing monitoring and potential adjustments in pediatric vision screening programs.
- The results provide valuable insights for optimizing the delivery of ophthalmic services to children.
Abstract:
The prevalence of defects of visual acuity among the 10 year old children in the 1970 birth cohort was 22.1%, but only in one third of these children was the defect more severe than 6/9. Defects were more common among girls. The relation of defects to social class was complex. Comparison with data collected on the children of the 1958 cohort when they were 11 years old suggests that although the prevalence of 6/9 visual acuity has remained constant over the last decade, the prevalence of more severe defects has declined from 12.9% to 7.3%. These findings have a number of implications for the provision of screening programmes and of ophthalmic services for children.