After the full femtosecond surgery is anesthetized, the eyes are kept as still as possible to avoid making the surgery more difficult. Patients are trained to keep staring at one thing for 10 to 20 seconds without moving and for as long as possible before having the surgery. During surgery, if the eye moves, look at how much it moves. Because the suction ring sucks in the eye during full femtosecond surgery, if the movement is small and does not exceed the pressure range, it is usually not a big deal. If it moves more, it will lose suction and the suction ring will detach from the eye, which will affect the surgery and make it more difficult. Therefore, before having a full femtosecond surgery, it is important to follow the doctor’s instructions and cooperate with the doctor’s training to avoid increasing the difficulty of the surgery.