3 ms·

There is also some evidence that yellow light causes nearsightedness, so be careful with that.

• kristofferR 11y ago
  Really? Do you have any sources/links so I can read more about that?
  • sarah2079 11y ago
    http://www.nature.com/news/the-myopia-boom-1.17120 http://www.nature.com/news/the-myopia-boom-1.17120
  • PepeGomez 11y ago
    http://iovs.arvojournals.org/article.aspx?articleid=2127682 http://iovs.arvojournals.org/article.aspx?articleid=2127682