Ontology highlight
ABSTRACT: Importance
Uncorrected refractive error in school-aged children may affect learning.Objective
To assess the effect of a school-based vision program on academic achievement among students in grades 3 to 7.Design, setting, and participants
This cluster randomized clinical trial was conducted in Baltimore City Public Schools during school years from 2016 to 2019 among 2304 students in grades 3 to 7 who received eye examinations and eyeglasses.Intervention
Participating schools were randomized 1:1:1 to receive eye examinations and eyeglasses during 1 of 3 school years (2016-2017, 2017-2018, and 2018-2019).Main outcomes and measures
The primary outcome was 1-year intervention impact, measured by effect size (ES), defined as the difference in score on an a
SUBMITTER: Neitzel AJ
PROVIDER: S-EPMC8430909 | biostudies-literature | 2021 Oct
REPOSITORIES: biostudies-literature