Glasses maintenance1. When putting on or taking off the glasses, please use both hands: gently hold the temples, and remove it with one hand will destroy the left and right balance; when wiping the lens, please hold the middle beam of the frame with one hand (do not hold the lens Leg), wipe gently with one hand, otherwise the frame may be deformed or the screws may loosen over time.2. When placing, do not place the lens face down: the lens face should be placed up or up, if placed down, place the most important lens center for wear.3. Fold the frame from the top first: Most frames are designed to fold from the top, so if you fold to the right first, it will be more laborious and will cause the frame to deform.4. When wiping the lens, please try to use a special lens cloth or soft paper towel: do not use corners or hand towels to wipe the lens. When the lens is heavily stained or dusty, it is best to use a neutral detergent (for example, detergent, etc.) to rinse with water, and then gently wipe with a lens cloth, otherwise the lens may be worn.5. Use a dry cloth or paper towel to wipe the sweat and oil stains on the frame and nose pad: You can wipe with a small amount of soap and water to remove difficult-to-remove dirt, or perform ultrasonic cleaning at the optician.6. Try to avoid contact with water vapor, oil fume, sweat, and certain cosmetics: these substances have a strong corrosive effect, and the film layer of the lens will cause certain damage. For the purpose of glasses and extended warranty The service life should be isolated.7. Do not use in high and low temperature environments: do not put the glasses on the control panel of the car exposed to the sun or bathe with the glasses, so as to avoid the overall deformation and deformation of the glasses. When outdoor activities are particularly cold, please pay attention to prevent the board frame from becoming brittle or cracked.8. After putting on the glasses, please check whether the screws are loose: If the screws are loose, please tighten the screws in time (preferably go to the glasses shop) to prevent lens displacement or parts loss.