eye strain on the Nookcolor is not as bad as some might claim, ( i have bad eyes from an infection a few years ago) I have a e-ink and the nookcolor and I can read for hours on both. It has a very high resolution that appears to fix the problem, for most people (not all). Why not go and have a look and see for yourself
checkout the app (I have this running on the nookcolor)
http://comicreader.mobi/