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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. ...

$ 249.95

Universal Patient Response button works with Zeiss Humphrey FDT or Matrix

Universal Patient Response button work with Zeiss Humphrey FDT, Matrix 715, Matrix 800. Will not work with HFA series visual fields (720-750).  If you need a cord for HFA please...

$ 99.00