I thought his eye was screwed because remember when donnie and frank are just standing looking at each other, and there is an invisible wall between them. Donnie starts stabbing at the wall, and it lines up right with his eye. That's what I thought anyways.

And whoever said the part about grandma death checking the mail everyday for donnie's letter, I totally never thought about that, but that's fuken cool. I still cna't make ANY sense of this movie though.