this post was submitted on 25 Apr 2026

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YSK: even modest increases in time spent outdoors significantly reduces a child's odds of developing short-sightedness (lemmy.ca)

submitted 4 months ago* (last edited 4 months ago) by a_gee_dizzle@lemmy.ca to c/youshouldknow@lemmy.world

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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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[–] nope@jlai.lu 108 points 4 months ago (4 children)

I was outside a lot and still got myopia :3

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[–] Stern@lemmy.world 46 points 4 months ago

Congrats on the luck

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[–] cenotaph@piefed.zip 25 points 4 months ago

Then you were likely genetically predetermined to be at least a little myopic, but if you spent less time outside during your developmental phases you would likely be even more nearsighted than you are now.

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[–] DarrinBrunner@lemmy.world 21 points 4 months ago (2 children)

Same for me, I spent most of my free time as a child playing outside. I grew up in California, weather wasn't a concern, I was outside year-'round. I got my first pair of glasses at age 21. I suspect it's far more genetic than environmental.

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[–] SkunkWorkz@lemmy.world 11 points 4 months ago* (last edited 4 months ago) (1 child)

It’s both. You can just look at the statistics, the number of people with myopia has gone up over the last few decades. If it was just genetics those numbers would have been stable.

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