"쌍꺼풀 수술" (double eyelid surgery) is a cosmetic procedure popular in many countries, especially in South Korea. It involves creating a crease in the upper eyelid to enhance the appearance of the eyes. This surgery can make the eyes look larger and more defined, which is often desired in various beauty standards. The procedure can be performed using different techniques, such as incisional or non-incisional methods. Recovery time varies, but many patients can return to their daily activities within a week. As with any surgery, it is important to consult with a qualified surgeon to discuss potential risks and benefits.