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Prevalence of decreased visual acuity among preschool-aged children in an American urban population - The Baltimore Pediatric Eye Disease Study, methods, and results
Journal article   Open access   Peer reviewed

Prevalence of decreased visual acuity among preschool-aged children in an American urban population - The Baltimore Pediatric Eye Disease Study, methods, and results

David S. Friedman, Michael X. Repka, Joanne Katz, Lydia Giordano, Josephine Ibironke, Patricia Hawes, Diane Burkom and James M. Tielsch
Ophthalmology (Rochester, Minn.), v 115(10), pp 1786-1795
01 Oct 2008
DOI: https://doi.org/10.1016/j.ophtha.2008.04.006
PMID: 18538407
Featured in Collection :   UN Sustainable Development Goals @ Drexel
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https://www.ncbi.nlm.nih.gov/pmc/articles/2574567View
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Abstract

Life Sciences & Biomedicine Ophthalmology Science & Technology
Objective: To determine the age- and ethnicity-specific prevalence of decreased visual acuity (VA) in white and black preschool-aged children. Design: Cross-sectional study. Participants: The Baltimore Pediatric Eye Disease Study is a population-based evaluation of the prevalence of ocular disorders in children 6 through 71 months of age in Baltimore, Maryland, United States. Among 4132 children identified, 3990 eligible children (97%) were enrolled and 2546 children (62%) were examined. This report focuses on 1714 of 2546 examined children (67%) who were 30 through 71 months of age. Methods: Field staff identified 63 737 occupied dwelling units in 54 census tracts. Parents or guardians of eligible participants underwent an in-home interview, and eligible children underwent a comprehensive eye examination including optotype visual acuity (VA) testing in children 30 months of age and older, with protocolspecified retesting of children with VA worse than an age-appropriate standard. Main Outcome Measures: The proportion of children 30 through 71 months of age testable for VA and the proportion with decreased VA as defined by preset criteria. Results: Visual acuity was testable in 1504 of 1714 children (87.7%) 30 through 71 months of age. It was decreased at the initial test (wearing glasses if brought to the clinic) in both eyes of 7 of 577 white children (1.21 %; 95% confidence interval [CI], 0.49-2.50) and 13 of 725 black children (1.79%; 95% CI, 0.95-3.08), a difference that is not statistically significant. Decreased VA in both eyes after retesting was found in 3 of 598 white children (0.50%; 95% CI, 0.10-1.48) and in 8 of 757 black children (1.06%, 95% CI = 0.45, 2.10), also not statistically significantly different. Uncorrected ametropia explained the decreased VA on initial testing in 10 of the 20 children. Conclusions: Decreased VA in both eyes of children 30 through 71 months of age at presentation in urban Baltimore was 1.2% among white children and 1.8% among black children. After retesting within 60 days of the initial examination and with children wearing best refractive correction, the rate of decreased VA in both eyes was 0.5% among white children and 1.1 % among black children.

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Ophthalmology
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