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The software displays all test information in a single display screen. This allows the
user to simultaneously view the data collection along the analysis displays. In each
measurement diagram, you can maximize and minimize the display of the measured
data by using the zoom option
Toolbarbottom:
Back: Returnpreviouswindow
Play: Replay the test performed (record, warnings and videos)
Spontaneous Nystagmus
Spontaneous Nystagmus: This may indicate either central or peripheral pathology.
The presence of Nystagmus can be evaluated with fixation (center, right, and left,
down and upon) o without fixation.
NystagmusCount
SPV (º/sec) is average slow phase velocity
Gaze
These Nystagmus tests document and measure the inability of the eyes to maintain a
static position. Nystagmus and slow phase velocity are evaluated for each position
NystagmusCount
SPV (º/sec) is average slow phase velocity
Saccades
Saccadic test results are influenced by patient cooperation and visual acuity.
Velocity, latency, and accuracy should all be taken into consideration when
interpreting saccades.
• Velocity (º/sec) is approximately proportional to saccadic amplitude for sizes
5º and 20º.
• After amplitude reaches 20º, saccadic velocity undergoes a soft saturation
with respect to further increase in amplitude. Velocity= asymptote (1-e
Amplitude/15) the usual upper limit for saccadic velocity is about 750º/sec
and the lower limit is set at 350º/sec
• Latency (mess) is calculated from difference in time between target
displacement and the onset of the first saccade toward the new target
position
• Accuracy (%) keeping in mind that the goal of a saccadic eye movement is to
fixate visually both quickly and accurately on a new object. The eye
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