Although double eyelid surgery has added a lot of charm to people, some people, such as saddle nose (low nose) and epicanthus, still need comprehensive correction to achieve the ideal effect. Some people don't do this operation if the eye fissure is narrow, the eyeball is too prominent, and the distance from the upper edge of eyelid to eyebrow is too narrow. In addition, congenital amblyopia, acute and chronic ocular inflammation are not suitable for surgery, and those with coagulation disorders and scar constitution are strictly prohibited.