How does eyelid height progress in the days and weeks after levator resection on one eye?

Generally eyelids will be swollen and heavy after surgery. Generally, as the swelling dissipates, the eyelid opens. There are two common types of ptosis surgery for adults: Posterior ptosis surgery, also called Müller’s muscle conjunctival resection, and the anterior approach ptosis surgery, also called anterior levator resection ptosis surgery. Posterior approach ptosis surgery is immensely popular with surgeons but this is an underpowered ptosis surgery that tends to leave eyelids under corrected. The anterior approach ptosis surgery is very powerful ptosis surgery that is technically demanding procedure that can be associated with persistent swelling. Following ptosis surgery, the eyelid should be swollen and heavy. Eyelids that are too open after surgery are unlikely to settle to a normal position. It is more likely that the over correction will persist and may require revisional surgery. Swollen eyelids after surgery are heavy and often as heavy as they were before surgery. As the swelling resolves, the upper eyelid approaches its more open post surgical position. Some eyelids settle very quickly. Most do not. Six to 8 weeks or even longer is common. Some eyelids will take 4 to 6 months to settle and an occasional eyelid will take much longer. Of course this is all very frustrating because we all want instant results. That is not ptosis surgery. Healing takes time. Each eyelid can do its own thing. Also be aware of Herring’s law ptosis. If one eyelid is more corrected, the other eyelid can become more ptotic.