Semi-femtosecond lasers can also cause conical corneas, but because the procedure is safer, the likelihood of conical corneas is lower. Semi-femtosecond lasers are more sophisticated, with accurate flap creation, fewer complications, and better postoperative visual quality. Semi-femtosecond laser produces a more uniform flap that is thinner in the center and periphery, and is less likely to produce a conical cornea after surgery. However, because the procedure also cuts the cornea and changes its biomechanical stability, patients may develop a conical cornea, i.e., corneal bulging, after the procedure. Some patients may experience symptoms such as dry eyes, dizziness, and decreased night vision after hemi-femtosecond laser surgery, and patients can use eye drops as prescribed by their doctor to alleviate the symptoms. Patients should pay attention to eye care, avoid excessive eye use and strenuous exercise, do not touch the eyes with your hands and so on. It is recommended that patients follow the doctor’s instructions for care, regular review, and timely consultation after discomfort occurs after the semi-femtosecond laser surgery.