My eyes had severe Mongolian folds and had tear ducts, but I had an epicanthoplasty, double eyelids, and ptosis correction. I did it at the hospital in front of my house in Changwon 5 years ago, but it hasn't been resolved so far and it's been fine. But now, I like the natural feel, so I'm thinking of lowering the line. Does everyone often undergo revision surgery even without side effects?