How many upper eyelid revisions can you have? (Photo)

I've had an upper blepharoplasty and two revisions. Can I ever get another upper eyelid revision, or is it the end for me because of the scar tissue? My original surgery was to fix my hooded eyelids, but the surgeon changed my parallel folds to tapered. I had 2 revisions to fix it. I would like to increase the height of my creases because they are lower than my original. Not sure if it's no longer an option for me since I had 2 revisions. What are the risks? Please advise. Thanks.