I think it'd be impossible because when you think you move your eye, your brain is essentially just moving a bitmap image of what you're looking at around the center of your vision. E.g. look at the word "sillysaurus2" above my comment. Look at the 's', then look at the 'y' -- keep looking back and forth. Your eye likely isn't moving at all, even though your focus of vision does. It happens mentally rather than physically.