After the semi-femtosecond surgery, vision is usually restored in 1~3 days, but it takes 1~3 months for the cornea to fully heal, and the exact time required varies from person to person. Semi-femtosecond is a commonly used refractive surgery. Through femtosecond laser, a corneal flap is first cut out on the corneal surface, then the flap is lifted up, and then the excimer laser is used to make precise cuts on the stroma of the cornea, and finally the flap is reset. Usually vision will return to normal in 1~3 days after the operation. As it takes time for the cornea to heal, it will take 1~3 months to return to normal completely. It takes 1~3 months for the cornea to fully recover. In the 3 months after the surgery, you should pay attention to not use your eyes excessively and keep your eyes clean to avoid affecting the recovery of the cornea, and you should develop good eye habits in your daily life to avoid myopia again.