With the release of the new cy eye, it became apparent that it would be more helpful to have a pair of eyes in the selection boxes (or for the cy eye, a single eye), than the current single eyes for all. There are now a few different subscriber eyes that you can't just see on the menu that are clear as to how they will display on the avatar (cy eye, and the goofy one with one eye bigger than the other). As we get more options (I hope), this will be more necessary.
Also, a hover label for the eyes and other vanity items on the selection menus would be nice.