Revision double eyelid surgery experiences in Korea?

I had double eyelid surgery done in my home country about 3 years ago and I am not satisfied with the results. One eye has a higher crease than the other and the overall look is quite unnatural. I have heard that Korean surgeons are excellent at revision surgeries. Has anyone had revision double eyelid surgery in Korea? What was your experience like? How much more complicated is a revision compared to a primary surgery? I am also wondering about the cost difference. Any clinic recommendations for revision cases would be very helpful!