After semi-femtosecond surgery, the patient’s eyes may have a foreign body sensation, which usually disappears gradually about 10 days after surgery, but the specific recovery time is related to the patient’s condition. Semi-femtosecond surgery is a kind of myopia laser corrective surgery, after undergoing the surgery, there will be a certain foreign body sensation in the eye, which is a normal postoperative reaction, and it is related to the incision that has not healed at the early stage of postoperative period. With the gradual recovery of the corneal wound, the foreign body sensation in the patient’s eyes can be gradually recovered, and generally disappears in about 10 days after the operation, but the specific recovery time is related to the patient’s condition. After hemi-femtosecond surgery, patients should pay attention to daily eye habits, avoid visual fatigue, but also avoid cosmetics and other chemical substances into the eye, otherwise there is a possibility of causing eye infections. It is recommended that patients after hemi-femtosecond surgery follow the doctor’s instructions for care, regular review, and timely consultation when discomfort occurs.