Interacoustics VisualEyes 525 - Default Chapter; Table of Contents

Table of Contents
1
TESTING BASICS ......................................................................................................................... 1
1.1 Default protocol ................................................................................................................... 1
1.2 Moving through VisualEyes™ ............................................................................................. 2
1.3 Eye image adjustment ........................................................................................................ 3
1.4 Focus adjustment ................................................................................................................ 6
1.5 Eye image contrast adjustment ........................................................................................... 6
1.6 Enlarging eye images ......................................................................................................... 7
1.7 Monocular vs binocular eye recordings .............................................................................. 8
1.8 Common test functions ....................................................................................................... 8
1.9 Add Note ............................................................................................................................. 9
1.10 Add tests ............................................................................................................................. 9
1.11 Delete tests ....................................................................................................................... 10
2
CALIBRATION ............................................................................................................................12
2.1 Performing calibration ....................................................................................................... 12
2.2 Default calibration ............................................................................................................. 14
2.3 Review calibrations ........................................................................................................... 15
3
TESTING .....................................................................................................................................16
3.1 Overview ........................................................................................................................... 16
3.2 Nystagmus Marking and Peak Response ......................................................................... 18
3.3 Nystagmus Testing ........................................................................................................... 19
3.3.1 Spontaneous nystagmus test ................................................................................. 19
3.3.2 Dix-Hallpike test ...................................................................................................... 20
3.3.3 Positional test ......................................................................................................... 21
3.4 Ocularmotor Testing ......................................................................................................... 22
3.4.1 Gaze test ................................................................................................................ 22
3.4.2 Smooth Pursuit test ................................................................................................ 22
3.4.3 Saccade test ........................................................................................................... 24
3.4.4 Optokinetic test ....................................................................................................... 25
3.5 Caloric testing ................................................................................................................... 28
3.6 Rotational Chair Testing ................................................................................................... 34
3.6.1 Safety checks prior to beginning rotary chair tests ................................................. 34
3.6.2 Sinusoidal harmonic acceleration (SHA) test ......................................................... 34
3.6.3 Step rotation test ..................................................................................................... 41
3.6.4 VOR suppression test ............................................................................................. 49
3.6.5 Visual VOR test ...................................................................................................... 53
4
PATIENT SESSION ....................................................................................................................57
4.1 Selecting a session ........................................................................................................... 57
4.2 Session Review................................................................................................................. 58
5
VIDEO RECORDINGS ................................................................................................................59
5.1 Recording patient videos .................................................................................................. 59
5.2 Video playback .................................................................................................................. 59
5.3 Delete selected patient videos .......................................................................................... 62
5.4 Exporting patient videos .................................................................................................... 63
6
GENERAL AND EDITING TOOLS .............................................................................................65
6.1 Quick access test properties ............................................................................................. 65
6.2 Selecting eyes ................................................................................................................... 65
6.3 Pupil diameters ................................................................................................................. 66
6.4 Editing nystagmus ............................................................................................................. 66
6.4.1 Add Beats ............................................................................................................... 66
6.4.2 Remove Beats ........................................................................................................ 67
6.4.3 Zoom Trace ............................................................................................................ 67
6.4.4 Reset Beats ............................................................................................................ 68