Contraindications and some precautions of excimer laser surgery excimer laser surgery is a new method to treat myopia, which can avoid the trouble that myopia patients can't find their glasses all day. Contraindications for excimer surgery: active inflammation of the eye, such as acute conjunctivitis and keratitis; Suffering from keratoconus, glaucoma, severe dry eye and so on. Correcting severe amblyopia patients with poor eyesight; Scar constitution, diabetes, collagen diseases; Exophthalmos and incomplete eyelid closure; One-eyed patient. What problems should be paid attention to in excimer laser surgery? The healing of corneal flap and corneal stroma bed after excimer surgery is a very slow process, which usually takes 1 year or even longer, and this healing is pathological, and its fastness can not be compared with that before surgery. Therefore, ocular trauma after LASIK can easily lead to dislocation between corneal flap and corneal stroma bed, which will lead to wrinkle or even tear of corneal flap and irreversible visual damage. This situation is not uncommon. Therefore, we should protect our eyes and avoid trauma when exercising after LASIK. If myopia patients are engaged in occupations with high trauma risk such as military and sports, we suggest that LASEK surgery is the best, and there are no complications related to corneal flap excimer surgery. After excimer surgery, some people, especially those with high myopia, often have poor vision at night, glare and poor visual quality. These patients should pay attention to safety when exercising at night or in dark environment, such as driving on expressway at night. It should be pointed out that LASIK surgery only corrected myopia, but did not change the essence of myopia, and the risk of retinal detachment and fundus hemorrhage did not decrease. Therefore, after LASIK surgery, especially for patients with high myopia, strenuous exercise and heavy physical labor should still be avoided, because these exercises are easy to cause complications such as retinal detachment and fundus hemorrhage. Of course, moderate exercise can promote blood circulation, relax eye adjustment, reduce visual fatigue, and contribute to the recovery of vision after LASIK, which should be advocated. After excimer surgery, we should pay attention to some matters needing attention in order to better face the eyes after surgery. Excerpt from: www.306laser.com/article.jsp?, 306 Hospital of the People's Liberation Army Excimer laser treatment center. id=95