There are some methods for repairing these lenses . First you must know what type of lenses you have before attempting to repair.Methods for plastic and glass are different. If it is plastic lens,use a bit of liquid detergent to wash it under warm,running water. Rub it around lightly and rinse away.Then dry it with a soft, lint-free cloth. And then apply a coating of non-abrasive white toothpaste to fill in the scratches.Rub the coating around the lens for several minutes.Finally wash the glasses in warm, running water again and dry tnem with soft, lint-free cloth. If it is glass lens, apply a dry cotton swab with white, non-abrasive toothpaste to rub lightly over the scrarch for twenty seconds.Then wipe off the toothpaste with a clean,dry microfiber cloth.Dampen the other side of the microfiber cloth and use it to wipe down the glass lens until the scratches are gone.

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