There are three images above, drawn in Paint. Guess what they are. I'll give you some space.
The first one, yes, is an eye. But what about the other two? When would you see something like that?
The second one you'd see if you were in a public washroom and were looking in the mirrors, and to your left and right were white sinks. They reflect in your eye. What about the last one?
It's from a round mirror with a white border. Eyes reflect things like these, and it looks really cool - in fact, the ring gets bigger or smaller if you move closer or further from the mirror.
I just wanted to share how much I love the effect that white objects have on the appearance of eyes.
Also, if you haven't seen Wes' post on Validation, check it out.