Universal Patient Response Button - compatible with Zeiss Humphrey visual fields Clicker
This 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, 750, 750i
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