Lightweight student tr90 frames are mainly used to wrap glasses. Wrap the glasses with eye cloth. This way, you can avoid the friction between the glasses and the glasses case.
If the spectacle lens is dirty or oily, rinse it with tap water and add some detergent. Rinse off with water, then use a napkin to blot the water so that the washed lens does not damage the film. Lightweight student tr90 frames are used to cover glasses, so generally it is placed in the glasses case to avoid friction between the lens and the glasses case.
Wiping glasses with lightweight student tr90 frames is very damaging to the lens. It is often used to dry the lens directly with a mirror cloth or clothes. The new lens will not be worn for a long time.
Most people use the lightweight student tr90 glasses to wipe the lens directly. Some people use the clothes to wipe the glasses directly. In fact, this is not desirable. The lightweight student tr90 frames are not used to wipe glasses. Usually there are a lot of dust particles on the lens. If you use the lightweight student tr90 glasses to wipe dry, the lightweight student tr90 frames will let these dust particles rub back and forth on the lens, similar to rubbing back and forth on the lens with sandpaper. The damage to the lens can be imagined for a long time.
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