Google Play Books new blue light filter reduces eye strain
 

Google's usage research indicates that most of us do a majority of our reading between 8 and 10 pm -- you know right before bed. But doing so in a dimly-lit bedroom can wreak havoc on your eyes, not to mention your circadian rhythm. That's why Google...

http://www.engadget.com/2015/12/16/g...es-eye-strain/