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When I purchased my eye glasses I asked the Optomitrist what ultrasonic cleaner they used in their shop. I thought it would be a safe choice. It worked very well for about four months, then it stopped producing the wave pattern on the surface of the water. It no longer cleans my glasses. I will contact Sper to see if they can fix it and will update my review afterwards.
Lori · March 22, 2026




