Ultrasonic sounds ... "It is gentle enough to clean delicate items such as carburetors, fuel injectors, hardware, jewelry, small metal parts, and eyeglasses." See, sound ultimately boils down ...

Rubbing your glasses on your T-shirt isn't doing your vision any favors. Use a cleaner designed for your eyewear. (Zeiss) ...

Stop using your shirt to clean your glasses! The best eyeglasses cleaner can help keep your lenses clear and prevent eyestrain.