I went for a consultation about revision surgery for sausage eyelids. In my case, they said they did not recommend eye-shape correction because it would make my impression too strong, so it did not seem like overtreatment. They recommended revision of the double-fold line and said they were confident with suturing, which I remember.
I do not know how it is now, but when I went for consultation, they offered about 200,000 won off the original surgery price if I participated by providing photos or writing a review. I think they also offered aftercare such as swelling-reduction injections. The clinic facilities were good too.