The Visionix L67 ARK has the Shack-Hartmann sensor, the Wavefront analysis occurs on multiple points increasing the precision of the readings. The graphical display of refraction errors enhances
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Full Auto Focus Up and Down Refractometer with Keratometry ARK-1A CE Certificated Objective View Tester Auto Refractor - AliExpress
L67 ARK Auto Refractor and Keratometer
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