These large aperture rotating prisms permit more
flexibility compared to your phoropter, allowing
testing in freespace. The aperture is a full 1 inch (24mm).
Two
versions are offered: 20 PD and 30 PD. Accurately calibrated dial shows prism
diopter selected.
4673 20 PD Hand Held Rotary Prism
....................... $320.00
4674 30 PD Hand Held Rotary Prism
....................... $340.00
4904 Rotary Risley Prism, Round, +/- 30 PD
.......... $375.00
4887 Removable Maddox insert
................................ $20.00
Prism
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Neuro-Ophthalmology Product Index
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