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The incidence and prevalence of amblyopia detected in childhood
J R Thompson1, G Woodruff, F A Hiscox
1Department of Ophthalmology, Leicester Royal Infirmary.
Insights
Amblyopia, or "lazy eye," affects 3.0% of children in one English county. Successful treatment reduces this number, with 1.9% remaining visually impaired in adulthood.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Public Health
Background:
- Amblyopia, commonly known as "lazy eye," is a developmental disorder of vision.
- Early detection and treatment are crucial for successful outcomes in children.
- Estimating the incidence of amblyopia is essential for public health planning and resource allocation.
Purpose of the Study:
- To estimate the incidence of amblyopia in a defined pediatric population.
- To determine the long-term visual impairment rates following treatment.
Main Methods:
- A retrospective cohort study of 364 children referred for occlusion therapy in 1983.
- Defined amblyopia using a visual acuity criterion of 6/12 or worse.
- Calculated incidence based on the study cohort.
Main Results:
- An estimated 3.0% of children in the studied county developed amblyopia.
- Following treatment, 1.9% of the cohort remained visually impaired as adults.
- Occlusion therapy demonstrated effectiveness in reducing long-term visual deficits.
Conclusions:
- Amblyopia incidence in this cohort was 3.0%, highlighting its prevalence in childhood.
- Effective treatment significantly reduces the number of individuals with persistent amblyopia.
- These findings underscore the importance of timely intervention for amblyopia in children.
Abstract:
We present incidence estimates for amblyopia using data from a study of a cohort of 364 children from a single English county who were referred during 1983 for occlusion therapy. Using a criterion of a visual acuity of 6/12 or worse to define amblyopia, we estimate that 3.0% of the county's children develop the condition. Successful treatment of some of these children means that 1.9% will remain amblyopic as adults.