Will revision upper bleph or medial canthoplasty work on my right eye? (Photo)

The amount of asymmetry that you have remaining is slight, and likely not worth the risk of pursuing an immediate revision at this time if you've already had 3 surgeries recently as one of the main risks of surgery would be for crease asymmetry of some sort to remain.

Medically this should not matter. At 3 weeks anticipate moderate bleeding, like a very heavy period that will last for 5-7 days. This may lower your hemoglobin, but not significantly. Take iron supplementation if you are vegetarian. Skin-only upper bleph under local anesthesia is a bloodless...

I didn't see where you mentioned how long post-op you are, but based on your scar it appears somewhat recent. 5-fluoruacil would be an option as you mentioned, as would massage and tincture of time. As long as the fixation sutures were well-placed, I would expect the lash to return to a normal...