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A non-contact optical device that measures the distance from the corneal vertex to the retinal pigment epithelium by partial coherence interferometry
Corneal diameter can be measured either during testing of the patient or later by recalling an image of the cornea on the monitor
IR and UV barrier
Control of cylinder axis and power testing is amazingly simple
Universal Patient Response Button - compatible with Zeiss Humphrey visual fields Clicker Brand_Welch Allyn and fasterThis is a universal patient response button, also called "the clicker", which can be used for visual field units. Please check the plug in the photo compared to your unit. This is NOT compatible with the FDT and Matrix units. Please see our other listing for the correct plug. Compatible with Zeiss Humphrey 720, 720i, 730, 735, 740, 740i, 745, 745i, 750, 750i
US$ 90.00
US$ 10.95
US$ 175.00
