Hypnotic eye

DeVil

If you look closely(at the pupil) you will see how the black pupil area expands

(Not the best image quality because it is a 100% krop)

dantambok

awesome! It`s hypnotizing me! o.O

helloyo53

Wow, you're right, it does expand when you look at it! Crazy stuff. Good picture though.

Lord Vetinari

Lovely closeup and interesting optical illusion

These do not really have a pupil, it's another optical effect where the light disappears down the eye structure and does not come back again.
That's the reason it always faces the camera.
Brian v.

jackiejay

wow thats cool.:)

DeVil

Glad you all like it!
Brian, thanks for the explanation