During the surgery, the femtosecond laser pointer system is fully used to cut an interface with a specific diameter and curvature at a relatively deep layer of the cornea. After completion, an interface with a larger diameter and a specific curvature is cut at a relatively shallow corneal layer. The perimeters of the two interfaces intersect, and a convex lens-shaped corneal tissue is formed in the sandwich. Taking out the prepared sandwich tissue with a special tool is equivalent to applying the principle of excimer laser cutting.
Because full femtosecond laser myopia surgery is more accurate, more reliable, more comfortable, and truly “no incision”, the postoperative recovery is good and it has become a new choice for the younger generation. Most people are more concerned about which type of laser myopia surgery is safer, but no matter which way, the safety is not absolute, and only the one that suits them is the best. During the pre-operative examination, the doctor will choose the most appropriate surgical method for you based on the individual’s corneal thickness, curvature, ocular surface, and fundus.
But these laser pointers are all treatments, not to say that once they are wiped out, they need not be done again. It does have obvious effects. For example, after the photon is done, for example, where there are stains, you will find some small crickets and feel a little rusty. After two days, they are particularly clean. However, in fact, after one to two weeks, some of them will gradually come out, and the deeper spots will grow.