Viewlight USA manual phoropter provides highly accurate readings designed for subjective refractions and abnormal binocular vision alignments.

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Viewlight Manual Phoropter VTR-10

Viewlight's vision tester VTR-10 is designed for subjective refractions determination and optically measures and aligns abnormal binocular vision such as muscle balance of the eyes, binocular balance and stereo acuity.  DOWNLOAD CATALOG