eyestrainsolutions I have two ancient Kindles that do not really function anymore but I have played around with them to test their effect on my eyes...I haven't decided if it was in my head but it did cause some level of discomfort. I actually have them charging to try it again on fresh eyes when I can. I can report back once I try them again. An e-ink monitor like the Dasung is WAY too expensive for me to try. I can't afford that, either. If you do want to try a Kindle, they have really old refurbished ones on eBay for like $30. Still, though, with a Kindle, you can't email, do bills, message anyone, or browse the internet. :-/