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Every hour children spend on screens raises chance of myopia, study finds
(www.theguardian.com)
This is a most excellent place for technology news and articles.
Or to be less alarmist and 'but everything after I was a kid is bad'
Putting kids in environments where they only ave to focus on things up close ruins distance vision.
More likely a lack of sun exposure
https://www.nature.com/articles/s41598-021-85825-y