To do full femtosecond myopia surgery, myopia patients should also meet the conditions of acute conjunctivitis, keratitis, iridocyclitis and other active eye diseases; No keratoconus, exposed keratopathy; No glaucoma, retinal detachment and other eye diseases. Those with a history of viral keratitis should be operated after the condition is stable for more than half a year. For patients with autoimmune diseases and scar constitution. The operation should be careful.