This convenient testing tool utilizes a rotating knob to conveniently vary prism demand up to 30PD in each direction (eso/exo).
A prism before each eye can increase the demand of 60PD.
The prism is approximately 1″ in diameter.
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Brand: Bernell
SKU: TE1BEARPHH30
The Bernell RIsley Rotary Prism (Up to 30D) is an affordable Risley Prism that you can use for testing.
CA$683.00
This convenient testing tool utilizes a rotating knob to conveniently vary prism demand up to 30PD in each direction (eso/exo).
A prism before each eye can increase the demand of 60PD.
The prism is approximately 1″ in diameter.
For qualified medical professional use only. Refer to User Manual for Canadian approved indication for use, cautions and precautions.
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