Medial Loose Pouch of Skin After Upper Blepharoplasty

The medial portion of the upper eyelid incision can take months to completely settle and I totally agree with the previous response that it is very imporatant to avoid overaggressive skin resection in this area which can create tethering of the medial scar to the nose.

It sounds like your surgeon did a good job. The medial fat pad of the upper eyelid typically needs to be addressed. One of the goals of surgery is to camouflage the scar within the crease of the upper eyelid. If the scar extends to close to the base of the nose it becomes visible. This is a much bigger problem then excess skin.
In my experience, the skin typically retracts down to the new contour following removal of the medial fat pad. It will get better but if there is a small amount of excess skin then it can be excised in the office setting under local anesthesia after about 3-6 months. Waiting will allow the skin to "settle down" and the revision, if needed, should not extend the scar to far medially.