1.5K views · 17 reactions | The lens clock with three pointed probes is used to determine the base curve measurements of all lenses with a refractive index 1.53. For any interest:  https://www.optometryinstruments.com/  sales@chinacanton.comfggg #ophthalmic #ophthalmicequipment #Lensclock | Canton Optics | Facebook
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1.5K views · 17 reactions | The lens clock with three pointed probes is …
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