Suggestion: you must pay attention to this problem before and after opening your eyes. I will answer the questions you mentioned before and after opening your eyes as follows. Hello, canthus surgery is an operation for eyes that are too small. It can make people's eyes more stylish and energetic. Therefore, canthus surgery has been favored by many beauty lovers, and a detailed analysis is made. In order to avoid the risk of canthus surgery, it is necessary to do a good job of preoperative examination and design; At present, there are many methods of canthus surgery, such as "V-Y" suture, "Z" canthus surgery, four-flap surgery and so on. This canthotomy is suitable for mild epicanthus; The latter is suitable for all types of epicanthus. Suitable for small eyes in different situations, canthotomy is also very safe and risk-free. For the risk of opening canthus, some have no rich clinical experience, such as excessive desquamation after pouch surgery, which leads to ectropion of eyelid and retraction of lower eyelid; Some are caused by rough surgical techniques, such as bags under the eyes and scar hyperplasia after double eyelid surgery. Regarding the safety of canthotomy, with the continuous development of plastic surgery in recent years, the development of canthotomy is becoming more and more mature and safe. When doing this kind of canthotomy, everyone must choose a regular professional plastic surgery hospital, cooperate with doctors to make preoperative preparations, and ensure that canthotomy is scientific, effective and safe. Open canthus surgery has been practiced in clinic, and many people are using this cosmetic method. External canthus surgery is a simple and commonly used lateral canthoplasty, which can permanently enlarge ptosis for everyone. However, the operation of the outer corner of the eye is largely limited. If the incision of the outer canthus is too large, the vault and bulbar conjunctiva are not relaxed enough, and the incision is forcibly sutured, the red edge of bulbar conjunctiva will appear in the area with wide canthus angle, which will affect the appearance and cause insufficient blepharoptosis. Moreover, in order to better avoid the dangerous phenomenon of canthotomy, drugs containing aspirin should be avoided two weeks before canthotomy, which will reduce the coagulation function of platelets. Do a general examination before opening the corner of your eye to rule out diseases such as hypertension and diabetes, and ensure that there are no eye diseases.