Maybe it was a subconscious thing, but Iris smiled as he sang the "You can't depend on your doctor" line, as in his case, he sure enough could. At Iris' insistence, and as tradition dictates ...

By keeping the bulb in the center and orbiting the blue gel (for the iris) and the opaque disk (for the pupil) around the bulb, the eye can appear to gaze in different directions. By adjusting the ...