Precautions 1. If you have a cold or fever, diarrhea, eye redness, (such as painful, itchy, photophobic, tearing eyes, etc.), or increased secretions, stop wearing them immediately and contact your doctor. 2, the lens itself has a certain brittle, fragile, cleaning should be careful, light rubbing, even force to avoid fragmentation, pay attention to avoid lens scratches and loss of film. 3.When cleaning the lenses in winter, the water temperature must be (20-35℃) cold boiling water, so that the water temperature is too low to increase the brittleness of the lenses and lead to fragments, and the water temperature is too high to deform the lenses and damage them. 4, cleaning and soaking lens care solution should be special hard lens care solution (care solution is valid for three months after opening), do not use the soft lens care solution instead, and care solution should never enter the eyes. 5, if the lens tightening need to dye, polishing need professional institutions to deal with; every three months to remove protein, to keep the lens clean. Second, before wearing the lens preparation 1, cut off too long nails. 2. Put a sink in the sink to prevent the lenses from being washed away by water. 3. Wash your hands twice with soap (yellow transparent laundry soap), especially the fingers that touch the lenses should be rinsed repeatedly. 4. Put a clean white towel in front of the mirror on the operating table to avoid scratches after the lenses fall off. Third, wear the mirror 1, the lens will be taken out of the mirror box with cool boiling water rinse clean, concave surface up on the right index finger fingertips. 2.Pull open the upper and lower eyelids with the left finger, the position of the finger should be placed in the middle of the inner and outer canthus and close to the root of the eyelashes to ensure complete exposure of the cornea. 3, Look into the mirror in front of you with both eyes, align the lens with the cornea with your right index finger and gently place the lens in the center of the cornea. After confirming that the lens is in the middle of the cornea, slowly release the finger that pulls the eyelid, and close your eyes for about 3 seconds to adapt. If the lens is worn at the bulbar conjunctiva, use the suction stick to suck out the lens in time, rinse and rewear the lens; wear the lens in the other eye according to the above operation; 4, each time after wearing the lens, pour out the care solution in the box and wash it with hot water, disinfect it, put the box on a napkin to dry for the next use. 5, keratomileusis should be worn at bedtime, and to ensure that the daily wearing time for 8 to 10 hours. Fourth, remove the lens 1, wash your hands well with transparent soap. 2, first pour a little care solution in the case ready to put the lenses. 3.Before taking off the lenses, put the soothing solution into both eyes and blink, then take off the lenses after they slide on the cornea. 4.Pull the eyelids apart to completely expose the cornea, align the suction wand to the outer or slightly lower part of the lens, and suction the lens out after completely touching the lens. Remember not to pull the lens vertically at the center of the cornea to avoid damage to the cornea. 5. Wash the removed lenses with care solution or cleaning solution, then rinse them with cold water and place them in the case with the concave side up, then add care solution to completely submerge the entire lens and cover the case tightly. Daily lens soaking should be 6 to 8 hours. 6, after using the suction stick can be rinsed with cool boiling water, wipe dry, suction stick box to keep dry, so as not to breed bacteria. 7.After removal of the lens point antibiotic eye solution (Telbital) and eye solution to promote corneal repair (chondroitin sulfate), 5 to 10 minutes between the two drugs, 2 times a day. It is used routinely during the shaping period, depending on the amount of secretion 1-3 times daily to spot the eye, and can be spare or discontinued after the shaping period is over. V. Follow-up time First-time wearers are required to wear the lenses the next morning for follow-up, weekly within the first month, monthly within a year, and once every three to six months after a year, depending on the specific situation. You should bring your care package with you to adjust your lenses or clean your lenses at each visit.