1, first of all, fully communicate with the doctor before operation about the postoperative effect.

2. The doctor should check whether it meets the requirements of the operation. Middle-aged and elderly patients need to measure blood pressure and electrocardiogram when necessary. If there is slight abnormality, they should take medication before the operation.

3, general examination, various tests, pay special attention to bleeding tendency, avoid menstrual period. This is a very important point in the notice of double eyelid cutting, which can never be ignored.

4, 7- 10 days before surgery, two weeks before surgery, smoking and alcohol should be banned, and oral aspirin or cold medicines containing aspirin and Chinese patent medicines with blood circulation function should be avoided.

5, if there is conjunctivitis, blepharitis, severe trachoma must be cured before surgery.

6. Prepare sunglasses (to cover the scar) and ice packs (to compress the wound after operation) before operation.