Those aren't wrinkles... Or rather, they're not age-wrinkles. Most people have some lines in the thin skin under the eyes, it's not actually meant to be smooth, not even on teenagers. In fact, I think she looks botoxed - she could do with a few more lines IMO.
Ic.. I thought it might be due to the late nights, booze & tons of make up she puts (you know the tugging & pulling of the delicate skin below your eyes) that resulted in those fine lines...