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 protocol-specified 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.
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 protocol-specified 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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Authors: Mark S Borchert; Rohit Varma; Susan A Cotter; Kristina Tarczy-Hornoch; Roberta McKean-Cowdin; Jesse H Lin; Ge Wen; Stanley P Azen; Mina Torres; James M Tielsch; David S Friedman; Michael X Repka; Joanne Katz; Josephine Ibironke; Lydia Giordano Journal: Ophthalmology Date: 2011-08-19 Impact factor: 12.079
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