SvennoJ said:
Where the heck do you get that from? |
https://www.canr.msu.edu/news/the_benefit_of_daylight_for_our_eyesight
There has been quite a few studies done that show a connection to sunlight exposure in the young and eyesight quality outside of genetic variation
In many Asian countries this has been a long time issue of worsening eyesight due to increased in-door activities resulting in less sunlight exposure to eyes
https://www.bbc.com/news/health-17942181
Some other issues of reduced sunlight exposure are bone health, immune system health and mental health