I'm not sure those are artificial. The strongest highlight on my character's eye changes shape when it hits the edge of his cornea. If it's artificial, they've done a very good job of remodeling the eyes so it reflects differently on the cornea surface vs. cornea edge vs. sclera.

I do think some of the pupils look lighter than maybe they should.

(I can't stop rotating my character by increments in the new chargen and admiring the eye reflections.)