To clean your glasses for the cleanest possible finish, remove any abrasive material (i.e. sand). With a fresh wipe, start wiping away the grime that accumulates in the middle, near the nose. Then, move outward toward the edge of each lens. No need to rub in circles - you want to pull the grime out and away from the lens. Finish off with a wipe-down of the folding arms.
Never clean your lenses on clothing or other fabrics or tissues of any kind. These are abrasive. Tissues and all paper towels are made from wood pulp (like paper), and contain tiny wood particles that will scratch lenses over time. Even Kleenex themselves advise against using them to clean lenses.
Don’t use household chemical cleaning agents as these are strong solvents and can destroy coatings.
Don't expose lenses to high temperatures as this can cause cracking/crazing, e.g. Leaving glasses in a hot car, opening an oven door, standing over a barbeque.
Never rest your glasses on their lenses, as this can cause scratches.
Do store your glasses in a case to avoid scratches and dust particles landing on them.
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