Lower Blepharoplasty with Muscle Suspension?

Slight tuck and bumpiness can occur shortly after a procedure such as you had. These areas flatten and fade with time. The incisions fall in natural creases and become well hidden as time goes on (usually virtually imperceptible). Although it looks good after surgery, it looks great in 3-6 months to a year once all of the healing is finished.

Your surgeon is correct.  This is swelling and will go away in 6-12 months if not sooner. 

Obviously without actually seeing a photo, its hard for us to give an opinion, but based on your description, I think that your surgeons response is appropriate regarding the "the small tuck". It will flatten with time.