2 ms·
So this would imply that myopia must be much more widespread in northern countries than in Asia, which I believe is not the case.
by demosito666 5y ago
So this would imply that myopia must be much more widespread in northern countries than in Asia, which I believe is not the case.
- unhammer 5y agoIn the Nordic countries at least, kids spend quite a lot of hours of the day outside in nursery/kindergarten/school as a rule (babies too: https://www.bbc.com/news/magazine-21537988 https://www.bbc.com/news/magazine-21537988 ) while as parent comment writes, school systems that encourage less outdoor time lead to more myopia. There's less sunlight in the North during the winter, sure, but still several orders of magnitude more than inside (also, more UV etc.).