Veileds can retract their eyes when they are threatened.
My males do it more often then my females, but that could have something to do with a weight issue.
Females tend to be more "plump" then the males, and fat storage can be around the eyes and face.
I'm not sure how accurate that is, but it's my assumption.
He looks perfectly fine to me.
I really like is third Y bar, that's very unique because it's on both sides.
Have fun with him!