Zhengzhou Rip uses intralase femtosecond laser from the United States, and Swiss z-lasik Da Vinci femtosecond laser is used in the Armed Police Hospital. 1, femtosecond laser and Leonardo da Vinci femtosecond laser Swiss z-lasik laser is much better than traditional excimer laser surgery! However, Swiss z-lasik second laser still has many shortcomings. If that kind of surgery is good, I recommend you to do IntraLase femtosecond laser. 1, corneal diameter setting, while femtometer LDV Swiss (Da Vinci) has only four standards, 8.5, 9.0, 9.5,10mm4; The laser diameter can be adjusted according to the patient's pupil condition (the diameter of the intrinsic ase femtosecond laser can be IntraLase or decreased by 0. 1mm from 5.0 to 9.5 mm). 2. In the setting of corneal flap thickness, Swiss Femto LDV (Da Vinci) has only three standards, 90m,1140m; IntraLase femtosecond laser can adjust the corneal thickness (90m ~ 400m, plus or minus 1m) according to the patient's condition (intraocular pressure, etc.). ) .4. Cutting smoothness, Femto LDV Switzerland (Da Vinci) has poor smoothness, forming steps. IntraLase femtosecond laser surgery has a smooth surface. 5. Under the microscope, Swiss Femto LDV (Da Vinci) still heals at an acute angle, but compared with traditional excimer, it is still better than traditional excimer corneal recovery. The cornea of patients undergoing IntraLase femtosecond laser surgery is completely healed like a "pressure cooker". It is suggested that patients with good economic strength, joining the army and fighting nature can choose IntraLase femtosecond laser. Zhengzhou Puri Eye Hospital has the most advanced femtosecond equipment in Henan, and the chief surgeon is the deputy head of the femtosecond training group of Puri Group. For patients who are not eager for safety and corneal recovery, you can choose Femto LDV Swiss (Da Vinci) femtosecond.