lasik should be corrected to LSAIK surgery, not full or half femtosecond, but excimer laser surgery. LSAIK is the full name of excimer laser in situ keratomileusis, which can be used to correct myopia. This type of surgery is more precise. During the surgery, the excimer laser is utilized to act on the patient’s eye area, and the stroma layer under the corneal flap is cut accordingly. Through cutting, the corneal curvature in the patient’s pupil area can be lowered to correct nearsightedness and improve the patient’s visual acuity. Full femtosecond refers to full femtosecond laser surgery, while hemifemtosecond is half-femtosecond laser surgery, both of which belong to corneal refractive surgery. Excimer laser surgery is different from femtosecond laser surgery, not to mention which femtosecond laser surgery it belongs to. It is recommended that myopic patients consult a doctor in time to assess their condition and follow the doctor’s instructions to choose the appropriate method of treatment.