3 Weeks Post Op Upper Eyelids. Still Swollen? (photo)

From your picture, it does appear that there is some swelling and redness present 3 weeks after your upper blepharoplasty.  It is not at all uncommon to still have some swelling and redness at this time and both of these issues will improve with more time.  It can take a few months for the eyelids to fully heal.  

You indeed have significant swelling after upper lid blepharoplasty. This can create with is usually a temporary tether on the medial side of the eyelid. This should improve with time.

It is normal to have residual swelling even after 3 weeks after surgery. You have to remain patient and continue seeing your surgeon for your regular follow up visits.  Good luck.