The main surgical option for myopia correction is laser, and some patients choose to have an intraocular lens implant. Laser surgery can generally be divided into two categories: one is superficial cutting, more commonly known as transPRK; the other is intra-stromal cutting, currently used more often as full femtosecond and semi-femtosecond. The lasers used in myopic laser surgery are mainly femtosecond lasers and excimer lasers: transPRK transPRK uses an excimer laser. It starts by chipping the outermost layer of the cornea and goes all the way down to the stroma in the middle of the cornea. Semi-femtosecond laser surgery Semi-femtosecond surgery, utilizing both femtosecond and excimer lasers, the femtosecond laser is only used in one of the sessions, so it is called semi-femtosecond. The specific steps are as follows: 1. Create a corneal flap with the femtosecond laser (equivalent to opening a flap to the cornea). 2, Lift the corneal flap. 3.The excimer laser is used to cut the corneal stroma and remove this part that is cut off. 4.Reset the corneal flap. Full Femtosecond Laser Surgery Full Femtosecond laser surgery, the entire surgical procedure is performed using the use of a femtosecond laser. The steps are as follows: 1. The femtosecond laser is directed to the middle of the corneal tissue, cutting the corneal stroma and creating a microlens. 2, The femtosecond laser makes a microincision of about two millimeters in the superficial layer of the cornea. 3. The microlens is removed through the microincision. ICL lens implantation IOL implantation is an internal eye surgery. The steps are as follows: 1. An incision is made in the cornea or corneosclera while the lens is folded. 2. The IOL is implanted.