Every hour children spend on screens raises chance of myopia, study finds
Every hour children spend on screens raises chance of myopia, study finds
www.theguardian.com Every hour children spend on screens raises chance of myopia, study finds
Experts warn young people should have limited use of devices and spend more time outdoors
Summary
Research suggests that increased screen time raises the risk of myopia in children.
A Korean meta-analysis of 45 studies involving 335,524 participants found that each hour of daily screen exposure raises the odds of developing myopia by 21%, with a 97% increase after four hours.
Experts warn that limited screen use and more time outdoors are essential, as the “safety threshold” appears to be below one hour per day.
However, study limitations prevent proving causality, though reduced outdoor exposure is likely a key contributing factor.