Can a canthopexy be performed a few weeks after a blepharoplasty to correct a mild lower eyelid ectropion?

Dear Scared in FLA.,
The biggest risk to lower lid blepharoplasty is over resection of the skin or muscle resulting in pulling down of the lower lid reminiscent of a bloodhound. Some high profile stars in Hollywood have had these problems - Burt Reynolds, Jack Lemon, etc.
In these cases, the proper treatment is to wait until all the swelling has resolved and then treat the problem. For exmple, if too much skin has been removed then replace it with a small skin graft. If too much muscle was removed then, lift the muscle off the cheek to replace the muscle.
In some cases, the ligaments that hold the eyelids tight will stretch. This will act similar to what I have described above. A canthoplasty or tarsorrhaphy are the techniques that improve this problem. The key to a good canthoplasty is to make the outer angle of the eyelid look natural - the lower lid tucks under the upper lid as they meet in the outer corner of the eye. If it does not look like this then it looks fake!
But for you at two weeks after surgery, The swelling that is part of surgery can make you look like you have the problems described above. You need to wait at least 8 weeks before you run to have more surgery. In the meantime, you can perform exercises that help to improve the problem. The two I like best are 1- squeeze your eyes tightly together and hold for 5 seconds, repeat 5 times , three times a day. 2- use your index finger to gently press on the outer corner of your eyelid to lift an release the edema fluid.
I hope this helps.

You need to give the tissues a chance to heal, and the swelling to resolve. You should focus on conservative (i.e., non-surgical) techniques to resolve the problem. Thes include massage, taping, and possibly oral steroids. All of these should be under the direct guidance of your plastic surgeon.
sek