Never use toothpaste! !

Glasses with tiny particles in the toothpaste are not as good as teeth for cleaning. The film on the lens is very fragile, and using toothpaste will scratch the lens

Use hand sanitizer or hand soap to clean your glasses. You can use detergent, but don’t use toothpaste, soap, etc. Just rinse with tap water. Use your fingertips to gently scrub the lens with the water. After washing, it is best to wait for the water droplets on it to dry naturally. If you can’t wait, let the optical shop send it to you. Use a clean lens cloth and wipe it in one direction. Do not wipe in circles or use paper towels to wipe. No matter how soft the paper towel is, it will have a grainy feel.

It is usually recommended to wash it with water and not to dry it. Dust particles floating in the air will damage the lens. Film layer

If the problem cannot be solved after trying the above methods, go to a professional optical store. They will have ultrasonic vibration cleaning machines specially used to clean glasses, and they are all free

But if you are using polarized lenses, it is not recommended to wash them with water. Then you need to wet the lenses with a clean lens cloth in one direction