There is coating on sunglasses. Maybe you will remove the coating as well. But if a pair of sunglasses can’t block harmful UV rays for your eyes. Why not buy a pair of new sunglasses. There is sunglasses case to store the sunglasses. So your sunglasses won’t get damaged as long as you put them in the case when you don’t need them. This can avoid get some scratches on the lenses and break them by accident.

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