Visual Acuity Norms in Pre‐School Children: The Multi‐Ethnic Pediatric Eye Disease Study

作者：Ying Pan, Kristina Tarczy‐Hornoch, Susan A. Cotter, Ge Wen, Mark Borchert, Stanley P. Azen, Rohit Varma, The Multi‐Ethnic Pediatric Eye Disease Study (MEPEDS) Group · 发表于：Optometry and Vision Science · 年份：2009 · DOI：10.1097/opx.0b013e3181a76e55 · 被引用次数：157 · 研究领域：Ophthalmology and Visual Impairment Studies、Retinopathy of Prematurity Studies、Corneal surgery and disorders

PURPOSE: To provide population-based normative data for monocular visual acuity (VA) and interocular differences in VA (IOD) in Black and Hispanic children 30 to 72 months of age without visually significant refractive errors or ophthalmic abnormalities. METHODS: In a population-based cohort of children in the Multi-Ethnic Pediatric Eye Disease Study, monocular HOTV VA measurements using the Amblyopia Treatment Study protocol were analyzed using continuous and dichotomous outcomes for VA and IOD, after excluding subjects with ophthalmic abnormalities or refractive error. RESULTS: The analysis cohort consisted of 1722 Black and Hispanic children aged 30 to 72 months. Mean logMAR VA improved with age (p < 0.0001) and male gender (p = 0.0008). The proportion of children achieving VA 20/40 or better was associated with age (p < 0.0001), but not ethnicity or gender, and was 81, 94, 99, and virtually 100% in children aged 30 to 35, 36 to 47, 48 to 59, and 60 to 72 months of age, respectively. The most stringent VA threshold that excluded <5% of normal children was 20/63, 20/50, 20/32, and 20/32 for children aged 30 to 35, 36 to 47, 48 to 59, and 60 to 72 months, respectively. Children attending preschool or daycare achieved VA 20/32 more often than those not attending, after age adjustment (p = 0.01), as did children from higher-income families (p = 0.04). There was no association between mean absolute IOD and age (p = 0.45), ethnicity (p = 0.12), or gender (p = 0.19). The proporti...