Myopic patients can be treated through surgery, but not all of them are suitable. Myopic surgery has certain requirements for age and myopia, mainly including the following aspects: First, the best age: the clinical usually considers the best age for myopic surgery to be between 18 and 45 years old. Patients who are under 18 years old have eyes that are in the developmental stage, and the eye axis may grow gradually with age and cannot have a clear myopia, so if surgery is performed at this time, it is not conducive to post-operative recovery and thus cannot achieve the desired effect. Patients who are over 45 years old are not recommended to undergo myopia surgery, because the adjustment ability of the eye becomes poor at this age, and some patients also have presbyopia at the same time, so surgery may lead to aggravation of presbyopia symptoms. Second, the best degree: myopia surgery methods are more, mainly including full femtosecond laser surgery, half femtosecond laser surgery, IOL implantation, etc., according to the type of surgery, the degree requirements are different, there is no clear unified best degree requirements. Generally speaking, if the myopia is stable and does not change by more than 50 degrees within 1 year, 300-2000 degrees of myopia can be selected under the guidance of a doctor. 1. Full femtosecond laser surgery: usually can correct myopia up to 800 degrees; 2. Half femtosecond laser surgery: this surgery has certain requirements for corneal thickness and can treat myopia patients with less than 1000 degrees; 3. Artificial lens implantation: for patients who cannot receive laser surgery to correct more than 1000 degrees and can correct up to 2000 degrees of myopia. In addition, not all patients are suitable for surgical treatment. Patients suffering from corneal inflammation, dry eye, fundus hemorrhage, retinal detachment and other problems are not suitable for surgical treatment and need to choose a suitable treatment method for themselves under the advice of the doctor.