Even those with perfect eyesight would get ocular fatigue trying to watch the small screens on most media players for extended periods. And for those of us who are legally blind without corrective lenses, it's almost impossible.
In these cases, the "iProjector" from Ion Audio is designed to prevent early bifocals by taking the video from your iPod and projecting it onto a screen of up to 30 by 90 inches, all the while charging your player. It will also work with a computer, DVD player or game console.
Ion claims 800-by-600-pixel resolution, but it remains to be seen how well that translates onto the screen. And the most important factor in our book--price--is not yet known.