Always wipe your sunglasses using a cleaner specifically developed for eyewear lenses and a microfiber cloth
Keep your eyewear in their protective microfiber case or hard case when you're not using them. This will ensure they remain in good shape over time.
To avoid damages to lenses, DO NOT clean your glasses with t-shirts, towels, or any abrasive material. These can grind dust and fibers into lenses leaving scratches
Avoid using household detergents, soaps, or glass cleaners, which are high corrosive over time.
When not wearing your glasses, never let them face down on their lenses. Store them in an approved eyewear case or carrying pouch.
DO NOT leave your sunglasses on the dashboard of your car with extreme heat. This can distort the shape of your eyewear.