Ultrasonic cleaners can be used to clean glasses and jewelry. They work by using sound waves to remove dirt and grime. However, ultrasonic cleaners can damage some materials, so it's important to use them with care.
How they work
Ultrasonic cleaners use sound waves to vibrate away dirt and grime
You can add a drop or two of dish soap to the water for oily smears
Some ultrasonic cleaners have a removable basket to prevent damage to the transducer
What they can clean
Jewelry, Glasses (except sunglasses), Watches, Rings, Coins, and Dentures.
What to be careful of
Ultrasonic cleaners can damage some materials, such as soft precious stones, plastic lenses, and sensitive coatings
You should not use ultrasonic cleaners on gems that have been filled or coated with oil, resin, or wax