Prevalence and causes of visual impairment in Asian and non-Hispanic white preschool children: Multi-ethnic Pediatric Eye Disease Study.

摘要: Purpose To determine the prevalence and causes of decreased visual acuity (VA). Design Population-based cross-sectional study. Participants Multi-ethnic sample children 30 to 72 months age identified in Los Angeles. Methods All eligible underwent a comprehensive ophthalmic evaluation including monocular VA testing, cover cycloplegic autorefraction, fundus evaluation, retesting with refractive correction. Decreased was defined as presenting or best-measured worse than 20/50 47 20/40 for 48 older. The were determined, both VA, better-seeing worse-seeing eyes. Main Outcome Measures Prevalence vision. Results Presenting assessed 1840 1886 children. eye 4.2% Asian 3.6% non-Hispanic white (NHW) Close one-fourth these cases had no identifiable cause, 81% resolved on retesting. an cause present 3.4% 2.6% NHW attributable simple error (myopia ≥0.5 diopters [D]; hyperopia ≥3.0 D; astigmatism ≥2.0 D ≥1.5 older 36 months) 2.3% 1.4% better 0.5% 0.3% 1.2% 0.2% Amblyopia related most common 10 times ocular disease. Severe impairment rare. Conclusions Seventy percent all preschool more 90% is error—either uncorrected amblyopia resulting from error. Financial Disclosure(s) author(s) have proprietary commercial interest any materials discussed this article.