First, don't worry. Dry eyes after lasik surgery is not permanent, it will last one to two weeks at most after surgery, only if you observe several tips as below. For example, you should avoid eye injuries by wearing a protective shield at night and with naps until you are advised by your doctor. Also, you should remember not sleep on the side of the operated eye for the first night. And, you may not be supposed to do some exercises after the surgery especially of swimming, it can be very dangerous. Besides, you should avoid the water splashes into your eyes when you wash your face or takes a bath or the dirty water may result in infection. Watching TV or playing computer is not allowed either. What's more, when you go out or stay in high intensity of lighting condition, you should wear sunglasses to protect your eyes. If you can follow all of these tips, you will recovery soon.