By far the best eye closeup movie ever isn't "Odds Against Tomorrow", but "The Good, The Bad and The Ugly". If you haven't seen it on the big screen, you haven't seen it at all; Clint, Eli Wallach, and Lee Van Cleef glaring at each other in the hottest, driest, sandiest, sweatiest, itchiest, tensest and most menacing sun that ever shone.
Screw that, the best eye closeup is that of Keir Dullea's at the end of the "Jupiter And Beyond The Infinite" sequence in "2001: A Space Odyssey" when the extreme closeup jump cuts from the false color to the true color image of a single blinking pupil.
Charles, I've said it before and I'm sure I'll be forced to say it again. Get your head out of your ass. Quit writing like this is your freshman philosophy term paper.
@4 Right on!