(1) OK lens wear time of about 8 hours a day. RGP: the first time users wear 4 hours on the first day, the next day to extend 2 hours a day, 5 days after no special discomfort can be worn all day. Xin Yijing, Ophthalmology Department of the First Hospital of Xiamen University (2) The initial discomfort after wearing the lenses, may appear foreign body sensation, tearing, etc., should close the eyes, adapt to a moment, do not rub the eyes to prevent damage to the cornea. If you cannot adapt, you should remove the lenses and re-clean them before wearing them. If there is a stinging sensation and redness in the eyes, you should stop wearing them, order antibiotic eye drops prescribed by your doctor, and go to the hospital as soon as possible. (3) Do not rinse the lenses with tap water. The lenses are fragile, do not squeeze them too hard, do not rinse them with hot water, they are easily deformed by heat. (4) Use up the care products within 90 days after opening, do not use them after that time. Replace the case and suction stick regularly. Only use special care products for lenses and change the care solution in the case daily. After about 3-6 months of use, you can remove protein every 1-2 weeks with special care products. Do not use eye drops while wearing lenses. (5) After wearing the lens, check whether the position of the lens is in the center of the cornea, and if it is misaligned, make the lens return to the right position by turning the eye, if not, take off the lens and wear it again. (6) If it is not easy to take off the lens, do not take it off hard, but take it off again by dropping soothing solution and blinking several times. (7) Follow the requirements of the physician and the dispensing doctor strictly for medication and regular review (generally review on the 1st and 7th day, review on the 7th day, review every month for the first 6 months, and review 3-6 months after 6 months). (8) Do not wear lenses when you have a fever, a bad cold, severe diarrhea, etc. and your immunity is reduced.