Excellent thing for people to be able to use. I've been experimenting with this effect for a bit now myself, only is PSP. Still works great, though.
Something else you might want to try/find interesting.. taking a small brush size and applying the dodge right over the iris, til you have a slightly faded one, and then perhaps even adding more, to get a gray/white spot on it. It seems to add that sort of cat in the lights look.. Or.. if you've seen the remake of "Dawn of the Dead" ..that sort of zombie eye appearance.