According to friends who have tested them, Gunnars don't block blue light very well, but these $8 safety glasses do: http://www.amazon.com/gp/aw/d/B000USRG90 ht

According to friends who have tested them, Gunnars don't block blue light very well, but these $8 safety glasses do: http://www.amazon.com/gp/aw/d/B000USRG90 http://www.amazon.com/gp/aw/d/B000USRG90