After more than 20 years of development in myopic laser surgery, the combination of excimer laser, femtosecond laser and anterior segment analyzer now makes the safety and recovery of visual function of myopic laser surgery has reached almost perfection. However, when you are preparing for myopia laser surgery, you must carefully understand the following questions: I. Is preoperative examination done with an anterior segment analysis? To achieve perfect results in myopia surgery, you must first ensure surgical safety, and pre-surgical examination is crucial. Nowadays, high-end Femtosecond Excimer Laser myopia treatment centers definitely have advanced anterior segment analyzers. The anterior segment analyzer can measure the angle of the anterior and posterior surfaces of the cornea, corneal thickness, and cone corneal screening. The greatest fear after myopia surgery is the occurrence of cone corneas. The Ocular Nodal Analyzer is specifically designed to screen for cone corneas, and can detect many cones that cannot be detected by corneal topography. And the measurement of corneal thickness is without touching the cornea, which is significantly more comfortable. Second, is it the latest femtosecond laser? The new femtosecond laser (Da. The new femtosecond laser (da Vinci Femtosecond) has revolutionary leaps to ensure safer surgery: 1. No waiting and no need to change surgical beds throughout the procedure, which greatly reduces patients’ fear and psychological pressure. 2, the new femtosecond laser: the scan takes only 12 seconds, the whole operation only takes 8-10 minutes, the patient’s irritation symptoms are reduced, safety and comfort are greatly increased; traditional femtosecond: the whole process takes 20-30 minutes, eye irritation symptoms are large. 3, the new femtosecond laser small spot scanning, low energy control, high frequency pulse blasting, the minimum impact on the surrounding tissue, cutting surface smoothness is far more than the traditional femtosecond laser. 4, the new femtosecond laser: cutting process produces very little gas, lift the corneal flap can be performed after the excimer laser surgery, no need to wait; traditional femtosecond laser: produce a large number of bubbles, will interfere with the cutting quality of the femtosecond laser, but also affect the patient’s gaze and the doctor’s operation, bringing surgical operation hidden problems. 5, the new femtosecond laser: the use of computer program control negative pressure pump system, real-time monitoring of negative pressure conditions, and can automatically compensate for the loss of negative pressure; traditional femtosecond laser: the use of manual operation, the error is large, surgical safety reduced. Third, is it the latest model of excimer laser? Eagle Vision Bluetone Cool Eye Excimer Laser ensures the best vision: this model is the most advanced excimer laser in the world, with fast speed and precise emission energy cutting. The Eagle Vision Bluetone Cool Eye is FDA approved for the widest treatment range, with a treatment range of 100-1400 degrees. Unique Q-value guidance and wavefront surface phase difference optimization are sufficient to provide individualized cutting for most patients with regular corneas, making it the first super refractive surgery workstation to offer all of the individualized surgical modalities currently available. Advantages of the Eagle Vision Blue Tune Cool Eye Excimer Laser with Slit Lamp: 1. Eagle Vision Blue Tune Cool Eye Excimer Laser (with Slit Lamp) is the latest version of the Eagle Vision Blue Tune Cool Eye Excimer Laser: you can use the slit lamp to check the post-operative eye condition after surgery while lying on the surgical bed, and any problems can be dealt with immediately, whereas the old version of the Eagle Vision Blue Tune Cool Eye required leaving the surgical bed to check with the slit lamp, and if there were any problems, you would have to go on the surgical bed again. If there is any problem, you have to go to the operation bed again. 2, Eagle Vision Blues Cool Eye excimer laser emission speed is extremely fast: laser scanning frequency of 400Hz, that is, 100 degrees of myopia, 6.5 mm optical area, only 2 seconds time! The short laser time emitted makes it easy for the person receiving the surgery to cooperate and less likely to have off-center cutting. The surgical source causes less astigmatism. The surgical time is precise, the surgical cutting is more precise, not easy to cause over-correction situation occurs. 3.Eagle Vision Bluetone Cool Eye Excimer Laser is the excimer laser with the widest treatment range certified by the FDA, with a treatment range of 100-1400 degrees. 4.The individualized surgery guided by corneal topography maximizes the best corrected visual acuity for patients with corneal irregularity, post-central cutting, large astigmatism, and corneal scarring. 5, Eagle Vision Blues Cool Eye Excimer Laser unique wavefront phase difference optimization and Q-value adjustment technology makes the cutting surface closer to the physiological curvature, avoiding the phenomenon of poor night vision or halo. 6, Eagle Vision Blues Cool Eye Excimer Laser is equipped with SBK technology for ultra-thin flap, which can be said to be the best choice for laser treatment of myopia surgery at present. Four, after completing the pre-operative examination, you must ask the attending surgeon the following serious questions: Are your tests normal; especially is the corneal thickness thick enough? Is there a possibility of hidden cone cornea (was it checked with an anterior segment analyzer or with a traditional corneal topography?) Is there any dry eye? Is there retinal degeneration? With or without glaucoma? It now takes only 8 minutes to complete a femtosecond excimer laser procedure. Pre-operative best corrected visual acuity is almost always achieved or exceeded. The long holiday period allows for a long rest period after surgery, which is very conducive to recovery from myopic laser surgery. It is advisable for those who are planning to have myopia surgery in the near future to choose the holidays to do it.