I get eye-strain from LCD screens and I know a lot of other people who do to. I've tried all the solutions people recommend like adjusting screen brightness, distance, surrounding light sources and none of them made a noticeable difference. The only thing that works for me is regular breaks from looking at the screen, at least 1 minute in every 15 say. This is fine for allowing me to do work, surf the web, read e-mails etc but it's obviously awful in terms of immersing myself in a lengthy work like a book. That's when I use e-ink which is awful at most of the above but simply doesn't cause anywhere near as much strain on my eyes as LCD.
I don't mind having to use two different technologies, I like it, they compliment each other. However I'm sick and tired of people telling me that eye-strain caused by LCD isn't an issue and that I just don't understand how to use the screen correctly