I'm not sure if it alleviates eye strain, but using less blue light at night has a definite effect on your ability to get to sleep. (http://www.post-gazette.co

I'm not sure if it alleviates eye strain, but using less blue light at night has a definite effect on your ability to get to sleep. (http://www.post-gazette.com/pg/08065/862394-51.stm http://www.post-gazette.com/pg/08065/862394-51.stm) It turns out that blue light even affects the circadian rhythms of blind people (http://www.scientificamerican.com/article.cfm?id=ask-the-brains-do-blind-people http://www.scientificamerican.com/article.cfm?id=ask-the-bra...).