It's been 10 years since I had double eyelid surgery.. If you look closely, it's slightly U-shaped ㅜㅜ It's not that noticeable at first, but as time goes by, it becomes quite noticeable. The non- incision double eyelid surgery doesn't show any signs of plastic surgery, but it seems like double eyelid surgery is unavoidable. I'm generally satisfied with it, but I'm not sure about the double eyelid surgery.