2. Before the operation, cooperate with the doctor to check whether it meets the requirements of the operation. If there are contraindications to double eyelid surgery, you can't operate.

3. Fully communicate the postoperative effect with the doctor.

4. If there is eye inflammation, such as conjunctivitis, blepharitis and severe trachoma, it must be cured before operation. If there is inflammation around the eyes, suspend the operation.

5. Drop antibiotic eye drops one day before operation, twice a day. Patients with a history of bleeding tendency should check platelets and clotting time. Smoking and alcohol should be banned for two weeks before operation, and oral aspirin or cold medicine containing aspirin and Chinese patent medicine with blood circulation function should be avoided.

6. Middle-aged and elderly patients need to measure blood pressure and do electrocardiogram if necessary. If there is slight abnormality, medication should be given before operation.

7 pregnancy or pregnant women, early pregnancy (three months) or late pregnancy (three months) to suspend the operation.

8. Stop using steroid hormones and aspirin and other anticoagulants 7- 10 days before operation.

9. Don't put on makeup before the operation.

10. Prepare sunglasses (used to cover the wound) and ice packs (used to ice the wound after operation) before operation.