First of all, you should be eighteen years old to fifty years old, so that you can take the lasik surgery. Then your myopia degrees in the recent two years should be stable on the condition of 150 to 2000 degrees' nearsightedness, 100 to 400 degrees' astigmatism, or 200 to 800 degrees' farsightedness. If you are eligible to these two preconditions, then you can go to the hospital to take a series of strick examinations and the doctor will tell you whether you are suitable to take a lasik surgery or not. If you are told that you can take the lasik surgery, then you should following these rules. First of all, you should not stay up late at the night before the surgery, and just rest, and you had better take a shower the night before the surgery. Secondly, if you wear soft eye contact lenses, you must stop wearing them a week before the surgery, if hard eye contact lenses, then stop at least two weeks before the surgery. Thirdly, you should apply antibiotic eye drops three or five days before the surgery. And on the day of surgery, you should not wear any perfume or makeup. Last but not least, you can take imitative fixationexercises with one minute each time.
