As one meta-analysis put it:

It’s estimated that an increase of one hour per day of outdoor time could reduce the occurrence of myopia in children by 45%.

Make sure your kids spend time outside, folks!

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[–] [S] 3 points 6 months ago (2 children)

Considering that a fairly large percentage of children develop myopia (as high as 80-90% in some countries) a 45% reduction would be fairly significant, no? Or am I missing something

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  • [–] 3 points 6 months ago (1 child)

    where are you getting these numbers.. from what I can see, the global average was 23% in 2000 and 34% today.

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  • [–] [S] 2 points 6 months ago

    The 80-90% claim seems to be repeated in various areas on the internet, including by the American Academy of Ophthalmology, which I assume to be reputable:

    Over recent decades, the prevalence of myopia has skyrocketed, particularly in Asia. In countries like China, Japan, Singapore, South Korea, and Japan, up to 80-90% of teenagers and young adults are now myopic.

    Of course these local averages are still consistent with a lower global average

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