Well, generally speaking, it all depends on your own situation. According to some researches, the rate of some patients who are low to moderate nearsightedness patients, it would be 98%. And for some people, who are nearsighted patients, it would be 92%. So from the data, you should know that it can be very safe to have this kind of surgery. But on the other hand, you also need pay more attention to your eyes, after the surgery, for your eyes will be sensitive and fragile. For example, you should not watch TV in the first week. Also, avoiding some bacteria and allergies is also important, or it can lead to some eye infection. Anyway, just be careful and have a good rest.