Hello, as a kind of operation, open-angle plastic surgery still has certain risks. Because canthotomy is a very delicate work, in the process of treatment, preoperative judgment, surgical plan formulation, incision selection, operation, wound combination and postoperative care are inseparable from clinicians' rich clinical experience, fine surgical skills, high sense of responsibility and modern aesthetics. It is suggested that the operation must be done in a regular hospital, and all aspects of preoperative examination must be done well to ensure the safety of the operation.