The myopia boom. Short-sightedness is reaching epidemic proportions. Some scientists think they have found a reason why.
http://www.nature.com/news/the-myopia-boom-1.17120
TL;DR: нужно больше света! 10,000 люкс в течение трёх часов.
via https://plus.google.com/103530621949492999968/posts/RwgHtvPw8Uf
@komar http://domdacha.by/image/cache/data-dom-obluchateli-nini-solnce-6ffc241-500x500.jpg ))