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!

    • Little8Lost@lemmy.world
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      3 hours ago

      It probably helps against making it worse. My father always told about the 30-30-30 rule.

      Every 30 minutes

      For 30 seconds

      Looking at least 30 Meters into the distance

    • a_gee_dizzle@lemmy.caOP
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      2 hours ago

      No. Interestingly once myopia does start developing this doesn’t seem to slow the progression. It seems to be good for prevention and that’s it