Uneven eyelid after upper blepharoplasty 1.5 month post-op. Will it even out? (Photos)

There is really no excuse for the two creases being so asymmetric.  The good news is that these do hide when the eyes are open. You need a detailed personal assessment to full understand all of the factor at work here giving you the appearance you have and how best to address these problems.  I suspect that you will need a crease lowering anchor blepharoplasty to support the upper eyelid lashes.  I recommend letting the eyelids heal for another 6 to 8 weeks before having this consultation. 

its best to discuss your concerns with your surgeon.  Perhaps that was a good reason why your incisions are so different from one lid to the other.  Your creases are a direct reflection of where you incisions were placed so you can also ask your surgeon what he/she can do for you under the revision policy that your surgeon should have.