VIsualEyes 515/525 - Additional Information Page 44
Figure 3.6.19 Step rotation summary
If the examiner has selected to move the chair to zero position after testing, then the chair will move to zero
position after all four segments for an individual Step Velocity test have been completed.
It is optional to perform a spontaneous test as part of the Step Test battery. This can be selected in Step
Test setup. If the spontaneous test is performed within the Step Test battery, then the option to toggle for
spontaneous nystagmus correction becomes available in the left panel menu (Figure 3.6.20). When
spontaneous correction is toggled on, it will adjust the responses based on the nystagmus a.SPV collected
during the spontaneous subtest. The degree and direction of correction will be displayed in the upper right
corner of the summary results screen.
Figure 3.6.20 Step test Spontaneous correction
Analysis of per-rotatory segments (acceleration + constant chair speed period) are separated from the post-
rotatory segments (deceleration + chair stopped). One complete analysis consists of per and post-rotary
segments for rotations in both directions at a single speed.
Analysis of eye movements is performed separately for the right and left eyes and the resulting waveforms
are displayed separately. Left eye results are displayed by default. The displayed results can be changed to
the right eye by selecting the eye title in the top center of the summary test results screen (Figure 3.6.21).
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