Swelling After Ptosis Surgery On Upper Eyelid?

Photos are necessary to give accurate answer. Although most of the swelling is gone within weeks, it takes 3 months for the eyelid to settle in place after ptosis surgery. Communicate with your surgeon any concerns.

I would recommend waiting at least 3 months to allow for the postsurgical changes to dissipate. It is not at all unusual to have asymmetric swelling. Actually it is the norm rather than the exception.  At three months you likely will have your final result. Your surgeon may still recommend to wait before attempting revision.

As always, please post photos. It makes our job a lot easier to give recommendations.

It is impossible to make an assessment based on your description without photos. However, three weeks following eyelid surgery all patients have some degree of swelling. At least part of your concerns is likely related to swelling. To determine how things are shaping up at this point, only your surgeon can give you the best answer. However, your result is far from final at this point and you have more healing to do. I hope this information is helpful.Stephen Weber MD, FACS

photos could be helpful, although the true answer is that you likely need to be patient and in communication with your surgeon. sometimes while it appears that most of the swelling is resolved, there is some on examination. sometimes muscles take time to recover after surgery, and this can at times take months. revisional surgery is possible, but usually delayed (unless done by the primary surgeon) until final healing is achieved. 
good luck and please be patient. hopefully it will resolve without further intervention

Ptosis ("toe-sis") is a drooping of the eyelid due to a weakness of the eyelid muscle. Ptosis surgery is very technical and requires great precision to have a natural, beautiful outcome.  Few surgeons are masters at this condition. Even in the best hands this surgery can be quite tough to achieve symmetry. You need an in-person consultation with a board-certified, fellowship-trained Oculofacial Plastic Surgeon with extensive experience in ptosis repair and eyelid surgery.  You must avoid any doctors that do ptosis or eyelid surgery part time, they cannot help you. You should allow for another 4 months or so of healing or you could consider asking for a second opinion -- I very routinely see patients from great distances to correct this sort of problem after the initial surgery did not turn out as expected. I could review any photos you wished to send to me as none are posted here. 
Damon B. Chandler, MD
Harvard-Penn Trained Oculofacial Plastic Surgeon