Do's
Do clean lenses regularly with a lens cleaner. Then wipe dry immediately with a soft cloth.
Do use a our protective case to prevent scratches and extend the life of your glasses.
Do lay glasses down with their lenses facing upward.
Do use both hands to put glasses on and take them off, and keep glasses on your nose, not on your head. Otherwise, frames can become misaligned.
Dont's
Don't wipe lenses when they’re dry. Any debris on their surface or dust in the cleaning cloth could cause scratches.
Don't wipe lenses with a tissue, paper towel, or paper napkin. They can have a rough surface.
Don't use ammonia, bleach, vinegar, or window cleaner, which can harm lenses and their coatings. (Most lenses are now coated, usually with an anti-reflective layer.
Don't put unprotected glasses in a purse, pocket, or bag.
Don't regularly place glasses on a sink or vanity top. Spatter, sprays, and cosmetics can soil lenses, and hair spray or perfume can damage the coating.
Don’t leave glasses in a hot car. Especially avoid the top of the dashboard.