UltraOkay

Is it OK for your ultrasonic cleaner?

Plastic and acetate frames

Yes
Check first
No

Plastic frames withstand lukewarm water – heat can reshape them.

Updated from your answers.

A few questions to be sure

Do the lenses have an anti-reflective or other coating?
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

Lukewarm water only. Dry straight away.

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 recommends ultrasonic cleaning for frames but warns that heat damages both frames and plastic lenses. Acetate softens with heat, and real horn is organic and does not withstand soaking.

Watch out for

  • Real horn or wood: avoid
  • Never hot water

Sources

  1. Zeiss – cleaning and caring for glasses

Cleaners that fit this

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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

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