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Good-Lite Risley Rotary Prism

Large aperture (1"/23mm) rotating prisms permit more flexibility compared to your Phoropter. Two versions are offered; +/- 20 PD or +/- 30 PD with handles. The prisms are controlled with a convenient knurled rotating knob. Accurately calibrated dial shows prism diopter selected and rotates thru 30 PD right-exo to 30 PD left-eso.

More Information
Manufacturer Good-Lite
Array Good-lite
Type of product Rotary Prism
Minimum Shipping latency 3
Returns Accepted Yes
Packaging 1 Each