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Protective measures for glasses 1. Cleaning of lenses Summer is a season of sweat and rain, and the lenses of sunglasses are relatively more prone to dust, and frequent wiping of the lenses also causes significant damage and consumption. In daily life, attention should be paid to the cleaning of sunglasses. If necessary, professional cleaning agents or water can be used to rinse. After cleaning, gently press and suck with a clean tissue until the water droplets dry. Special attention: Glasses with polarized lenses cannot be cleaned with ultrasonic waves, otherwise it will damage the polarization effect. 2. Avoid placing at high temperatures Do not place sunglasses in high temperature environments, as they may deform due to high temperatures, especially for sunglasses with plastic frames that are almost not heat-resistant. Long term exposure to sunlight can cause the frame of the mirror to fade due to exposure to light and heat. When sunglasses are not in use, wrap them with glasses cloth and put them in a box to avoid unnecessary damage to the glasses. 3. Wiping problem When wiping sunglasses, a specialized cloth should be used. At the same time, be careful not to touch hard objects with the lenses. Do not wipe the lenses with your fingers, but use a clean lens cloth to reduce lens wear. 4. Avoid contact with items containing chemical components Avoid long-term contact with chemicals such as perfume, pesticides, etc., and avoid chemical corrosion of lens and frame, so as to better protect sunglasses. 5. Do not place the sunglasses on top of your head Many people like to hang sunglasses on their heads, thinking it's cool. In fact, doing so is very incorrect as it can cause the hook to break. At the same time, in order to save time, many people will put their glasses directly into their bags or pockets, which can easily cause the sunglasses lenses to be scratched by sharp edges such as keys or combs, and should not be taken lightly.