Open canthus surgery is generally suitable for small eyes, and the inner canthus has drooping skin, like epicanthus, which makes the eyes look small, lifeless and short. Therefore, if the eyes are small and there are many endothelium, the inner corner of the eye will be widened when double eyelids are made. Opening your eyes is actually moving the inner corner of your eyes a little further to make your eyes look longer. This is the first one. Second, after the extra skin is removed, the corner of the eye will be tighter. If it is a double eyelid, it will have a greater magnifying effect, making the eyes look big and long and become a beautiful woman with big eyes. Therefore, after opening the corner of the eye, it will really brighten the eyes, become bigger and have a better effect. There is a small defect in the corner of the eye and an incision. If it goes all the way to the bottom, the bottom can be hidden in the eyelashes. There's nowhere to hide around your eyes. After about half a year, there will be a little white mark on the back. Of course, if you use concealer or a little makeup, you won't see it.