Not every myopia patient, can have myopia laser surgery. To have myopia laser surgery, the following conditions must be met: First, you should be older than 18 years old, be mentally healthy, have reasonable expectations, and wish to remove your glasses. Second, those who are within 600 degrees of farsightedness, more than 1200 degrees of myopia and 600 degrees of astigmatism can have surgery. The myopia is relatively stable in the past 2 years. Four, the corneal thickness is thick enough to operate. Fifth, patients with cone cornea and acute eye infections, systemic diseases and severe dry eyes should be excluded before surgery is allowed.