Full femtosecond keratomileusis includes: Femtosecond Laser Stromal Lens Excision (FLEx) and Femtosecond Laser Microincision Stromal Lens Excision (SMILE) Femtosecond Laser Stromal Lens Excision (FLEx): a new keratomileusis procedure that changes the refractive state of the eye by removing the intra-stromal lens made by the femtosecond laser. The eye is fixed with an attraction ring, the flattening lens of the curved surface of the laser emission system keeps the cornea at a certain curvature, and the femtosecond laser cuts out a stromal lens tissue in a spiral manner according to the designed size and thickness, i.e., the femtosecond laser achieves two scans between the corneal stroma, and the two scans are performed according to the preset number of corrected refractive errors, which is equivalent to removing a lenticular corneal tissue, lifting the corneal flap, separating and removing the lamellar corneal tissue, and the flap is reset. Femtosecond laser microincision stromal lenticule excision (SMILE): The femtosecond laser performs two scans at different depths between the corneal stroma for flap making and lenticule excision, with the difference that the edges of the flap only make a 2-4 mm curved edge cut, i.e., a smaller span (about 2 clock points) of peripheral incision, remaining essentially incisionless for the entire flap circumference. The entire process of SMILE is truly minimally invasive and provides better maintenance of corneal biomechanics.