4 ms·
Close-up work (crafts, reading, computers) causing myopia 'makes sense', I heard the same thing as a kid in the States. It makes me wish we would have had more
by arrowleaf 3y ago
Close-up work (crafts, reading, computers) causing myopia 'makes sense', I heard the same thing as a kid in the States.
It makes me wish we would have had more P.E. classes outside, rather than 'giving our eyes a break' by playing kickball indoors under fluorescence.
- nsonha 3y agothe problem with playing indoor is that your "eye break" only goes so far as the walls of the space, still "close objects" in relative terms. In nature, humans use their eyes to gaze landscape, stars... really far things.
- garblegarble 3y agoMy understanding is that 20 feet or so is optical infinity, so whether you're looking at an object 20 feet away or 20 light years away, your eye muscles are just as relaxed (hence the 20-20-20 recommendation: every 20 minutes, stare at an object 20 feet away for 20 seconds)
- antisthenes 3y agoI don't know about you, but where I spent my childhood, most things indoors were much closer than 20 feet away. That's a fairly large room, and we typically don't focus on the furthest point while indoors anyway. So with the 20ft requirement, it's a lot easier to fulfill while being outdoors.
- garblegarble 3y agoOh yeah definitely - I was purely commenting on the parent comment's "really far" claim, and noting that it's all the same to the eye muscles once you hit 20 feet - you don't have to (no pun intended) set your sights on the stars to relax your eye muscles.
- arrowleaf 3y agoWell, the real problem is that children's eyes aren't getting enough sunlight exposure to trigger dopamine production, which regulates the lengthening of the eyeballs, while cooped up inside. Eye strain is muscle fatigue, unrelated to myopia.