UltraOkay

Is it OK for your ultrasonic cleaner?

Lenses with anti-reflective or other coating

Yes
Check first
No

Ask your optician first – coatings can come off, especially if they are damaged.

Updated from your answers.

A few questions to be sure

Do the lenses have scratches or patches where the coating has come off?

How to do it

Time
3 min
Water
Lukewarm, 35 °C at most – never hot

Only lukewarm water, a short time, after the go-ahead from your optician.

With these answers we do not recommend the ultrasonic cleaner, so there is no how-to.

Pick your cleaner to see if it fits, which setting to use and what its manual says.

Why

Zeiss advises against using a jewelry cleaner on glasses, but opticians themselves clean lenses in ultrasonic cleaners. A Zeiss manager describes rare problems with coatings. Heat and damage increase the risk.

Watch out for

  • Scratches or crazing: avoid
  • Never hot water

Sources

  1. Zeiss – cleaning and caring for glasses
  2. Galaxus – Zeiss on cleaning lenses

Cleaners that fit this

Ranked by fit, never by commission.

How we rank: models made for this kind of item first, then how easy the model is to buy where you are, then how much of its spec is confirmed in a source.

We may earn a commission when you buy through these links. It never changes an answer. How this works

    We may earn a commission when you buy through these links. It never changes an answer. How this works

    Good to have for this

    We may earn a commission when you buy through these links. It never changes an answer. How this works

    Clean it safely another way The safe way while you check

    We may earn a commission when you buy through these links. It never changes an answer. How this works

    Good to know

    Related

    Which cleaner do you have?

    Pick your model and every answer adapts to it: tank size, heater, timer and the warnings in its manual.

      Can't find yours?

      Describe it and we use a similar profile.