I have a program called F.lux which removes the blues from the light your screen puts out, making it less "bright". It looks sorta "bronze" especially when you turn it down all the way like I do. It's not going to make the screen 100% eye friendly, almost nothing can do that, but it helps a lot. F.lux is a free download, just google it.

For eye friendly word processing, I go to http://writer.bighugelabs.com/ and set my background to black and the type to green, like an old school monitor. That's really easy on the eyes. You can download from that, copy and paste, whatever, so it's really handy for doing the grunt work of writing then copy / paste into a word doc before you print or send.

These are the only two things I have done so far, other than of course messing with the brightness.