Semi-femtosecond surgery usually results in a return to normal vision, with each patient’s eye fundamentals being different and the exact recovery varying from person to person. Semi-femtosecond surgery belongs to a kind of corneal refractive surgery, through the femtosecond laser to make a flap, is also a kind of refractive surgery with high medical safety, and the patient usually has a better recovery effect after the surgery. Normal eyes can have a naked eye visual acuity of 1.0, or 5.0. Most myopic patients are able to return to a normal visual acuity of 1.0 after hemi-femtosecond surgery. However, for patients with high and ultra-high myopia, whose eyes have poor underlying conditions, they may not be able to achieve 1.0 vision after surgery, but most of them can reach the level of preoperative corrected vision with lenses. Therefore, there are individualized differences in the ability to return to normal vision after Hemifacial myopia, and the patient should consult an ophthalmologist and have his/her personal situation evaluated in detail by the doctor.