Presbyopia is clinically called presbyopia, and is caused by a decline in the regulation of the ciliary muscle, so to prevent presbyopia, you need to exercise the regulation of the ciliary muscle to slow down its degeneration. First, try to avoid prolonged near-eye use. It is recommended to use the eyes for about 30 minutes at close range and 10 minutes at a distance, while moving the cervical spine to prevent ciliary muscle adjustment fatigue. Second, regular work and rest, avoid staying up late, to ensure adequate sleep. Third, often hot compress, hot compress method is to use about 42 degrees of warm water, dip wet towel, after wringing the towel, close the eyes, compress on top of the eyes, 3 times a day, each time about 10 minutes. Fourth, if you go out in the sun, it is recommended to wear sunglasses. Fifth, more eye activity, the specific practice is to open and close the eyelids, do 15 times a day, while hands to lightly rub the eyes, moisten the eyeballs.