If you only have redness and bags under your eyes, no migraines etc. and you're still able to use any LCD screen, you don't really have any real eye problem, lucky you, or anyone else for that matter.
For me even e-ink devices are not good enough, because apart from amblyopia, i got my eye muscles almost completely paralized for 3 weeks after the last migraine, and still recovering from that after 4 months, and I get eye strain very quickly just focusing on anything up close like e-ink tablet, books, and can't use any lcd screens already for years, including TVs, though i didn't have means to try all possible tricks and tweaks with different LCDs, RLCDs, etc..i'm glad that anyone is managing to find fix for their issues.