For laser treatment of myopia, consider myopic laser surgery. In earlier years, excimer laser surgery was generally used, and now there is also the use of femtosecond laser surgery, including full femtosecond laser, and femtosecond laser flap LASIK surgery (semi-femtosecond laser surgery). Although good vision can be restored after myopic laser surgery, there may be unavoidable complications. The more common ones are currently considered post-operative dry eye. Many patients will, after myopia laser surgery, find that if they use their eyes with fatigue for a long time, their eyes will easily become dry and sore. It is generally believed that during the surgery, the active transient vision is reduced because the corneal flap is made and the nerve is cut off, thus weakening the nutritional effect of the corneal epithelium, and thus the performance of dry eye appears. In addition, there will be foggy cloudiness under the corneal epithelium, nocturnal glare, possible gradual regression of vision, as manifested by the unstable state of refractive error in the early stage after surgery, and possible paroxysmal blurring of vision; also, overcorrection or undercorrection of the refractive state, recurrence of viral keratitis, hormonal hypertension, and even more serious corneal infection, etc. Therefore, if you want to do myopic laser surgery, you must choose a regular hospital ophthalmology, through the standardized surgical procedures, strict post-operative follow-up review, in order to reduce and prevent the emergence of various complications.