Patent ID: 9700203
Date: 2017-07-11
CPC Classifications: A61B

Claim:
1. A handheld testing device comprising: a housing configured to be held in one hand of a user administering an evaluation; at least one light source disposed substantially within the housing and configured to be visible to a test subject facing the user, as the user moves the handheld test device in front of the eyes of the test subject; a first backlit button selectable to activate an Equal Tracking timer, the equal tracking timer configured to control a first series of tactile feedback indications delineating sub-portions of an Equal Tracking nystagmus test; a second backlit button different from the first backlit button, the second backlit button selectable to activate a Smooth Pursuit timer, the Smooth Pursuit timer configured to control a second series of the tactile feedback indications delineating sub-portions of a Smooth Pursuit nystagmus test; at least a second light source, wherein the second light source comprises one or more of an ultraviolet light source, disposed substantially within the housing and configured for one or more investigatory purposes independent of or supplemental to a nystagmus test; a third backlit button selectable to activate a Maximum Deviation timer corresponding to a Maximum Deviation nystagmus test; a fourth backlit button selectable to activate an Angle of Onset timer corresponding to an Angle of Onset nystagmus test; a fifth backlit button selectable to activate a Vertical Nystagmus timer corresponding to a Vertical Nystagmus test; and wherein the backlit buttons are configured to provide visual cues to the user indicating a proper next button corresponding to a proper next nystagmus test to select.