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PICO
Question: Among school-aged children, can increased time outdoors prevent the development of myopia as compared to controls?
Question type: Intervention
Study design: Cluster randomized controlled
Investigators from China and Australia conducted a study to determine if increased time outdoors would prevent the development of myopia in school-aged children. Elementary schools in Guangzhou, China, were randomized to either the intervention or control group. First grade students in intervention schools received 1 additional 40-minute class of outdoor activities each school day, while those at control schools continued their usual pattern of activity. Parents of children in the intervention group were also encouraged to play outdoors with their children after school, particularly during …
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