Skin disease at the inner corner of the eye, that is, epicanthus in medicine, is a major feature of oriental eyes and the main reason why most of oriental double eyelids are open and scattered. Because the radian of dermatoglyphic skin is often inconsistent with the radian when the eyelids move upward, if the radian of the double eyelids is not easy to find, it will be twisted with the double eyelids, and naturally the inner eyelashes will not turn out. Generally, when designing the double eyelid line, if it is a scattered double eyelid, the root of the inner eyelash exceeding 1/3 cannot be exposed, and the doctor can correct the epicanthus with the consent of the patient, so that more eyelashes can be exposed and the eyes can look better. Epicanthus epicanthus can cover the normal corner of the eye, block part of the line of sight and affect the beauty of the eyes. In order to make the eyes more beautiful and moving, we can correct them by opening the corners of our eyes, and the effect of enlarging and reducing the eyes after operation is obvious.