Single eyelid refers to the smooth skin between the lower edge of the upper eyelid eyebrow arch and the eyelid margin, and no wrinkles are formed when eyes are opened, which is called single eyelid. Double eyelid means that the skin of the upper eyelid has a shallow groove above the eyelid margin. When you open your eyes, the skin under this groove moves upward, while the skin above this groove hangs in the double eyelid groove and folds down into a horizontal fold. Weigh your eyelids. Single eyelid and double eyelid are related to heredity, and generally remain unchanged for life, but a few people change with age. Some gradually become double eyelids as they grow up to adulthood; Some eyelid skin droops with age. The difference between a single eyelid and a double eyelid is that the skin of the entire upper eyelid of a single eyelid is thick and bloated, and the skin is slightly drooping, covering the edge of the eyelid and looking up can't see the root of eyelashes; The upper eyelid skin is thin and delicate, the upper eyelid skin is not drooping, and the eyelid edge is all visible. The palpebral fissure of single eyelid is short and narrow; The palpebral fissure of double eyelids is longer and wider. The eyelashes of a single eyelid are short and sparse. When looking up, they tend to lean down. Sometimes eyelashes will cover the pupils, affecting vision and vision. People with double eyelids have long eyelashes and slightly upturned when they look up. The corner of a single eyelid is rounded because it is often accompanied by epicanthus; The inner canthus of patients with double eyelids is generally sharp, and there is generally no epicanthus. Lanzhou San 'ai Plastic Surgery Hospital hopes to pursue a bright future and a promising tomorrow with you. Address: Floor 0/5, Digital Building, West Exit of Plaza (above CCB)