1-3 days before surgery: 1. Continue to stop wearing contact lenses from the day of the examination to the day of surgery. 2.Please purchase “Johnson & Johnson (tear-free formula) baby shampoo”, wipe the lid margin (under the root of the eyelashes) with a cotton swab each time with shampoo, wipe and rinse with water, repeat 2 times a day. 3. Take antimicrobial eye drops (colistin, gatifloxacin, etc.) 4-6 times a day; or as prescribed by the doctor. 4.Conduct gaze training (single eye gaze at a point about 20CM, no eye rotation, can blink, hold for about two minutes) to facilitate intraoperative cooperation with treatment. 5.Wash hair and take a bath the day before surgery. On the day of surgery: 1.Wear a cardigan to facilitate undressing when sleeping 2.Do not use any cosmetics, perfume, hairspray, etc. 3.Please do not bring any communication devices (e.g. cell phone, etc.) into the operating room. 4.Please wear sunglasses for LASEK surgery. 5.Please do not drive yourself. Intraoperative cooperation: 1.Overcome the tension, relax, follow the doctor’s instructions and actively cooperate with the surgery. 2.During the operation, both eyes need to be open at the same time, look at the indicator light (green or red), look at the red indicator light when laser; do not turn your head or eyeballs; do not squeeze your eyes.