In general, full femtosecond surgery is safer than half-femtosecond surgery.
Full femtosecond involves two laser scans, making an incision and removing corneal tissue with a special machine, with only a small 2mm incision. Semi-femtosecond surgery requires the creation of a corneal flap, which is reset after the laser is fired. The incision is larger than full femtosecond, and is susceptible to postoperative infections and higher incidence of dry eye, but the cost of the surgery is lower than that of full femtosecond, and a wider range of diopters can be corrected.
Full femtosecond surgery and hemifemtosecond surgery have their own advantages and disadvantages, and you should choose according to your own situation under the guidance of your doctor. After surgery, avoid water and bright light exposure to the eyes, and do a good job of protecting your eyes, as well as paying attention to a balanced diet.
It is recommended to seek prompt medical attention if any abnormalities occur after eye surgery to avoid more serious consequences.