I read a bout a neat "hack" so to speak here on HN some years ago that I've used to some degree of success. Tense up all the muscles in your body for about 20

I read a bout a neat "hack" so to speak here on HN some years ago that I've used to some degree of success. Tense up all the muscles in your body for about 20 or 30 seconds and then relax them. It should trick the muscles in your eye (the ones giving you the eye strain) to relax, too. YMMV, but it's worked for me.