otometrics ICS Impulse USB - Skew Deviation Test; Collecting Skew Deviation Data

8.11.3 Playback of data collection
The eye and head velocity traces and the eye video can be played back synchronously with the room video.
Video Playback buttons and selections
Play
Plays the video
Pause
Pauses the video
Stop
Stops the video
Play from Cursor
Select to start the playback at the position of the cursor. If not selected, play-
back starts at the beginning of the trace.
Speed
Note• Before setting the playback speed, check the recorded frame rate
(fps) stated below the eye video.
• Normal - eye video recorded at 30 frames per second can only be
played back at normal speed.
• Slow - eye video recorded at 60 frames per second can be played back
at normal or slow speed.
• Slower - eye video recorded at > 60 frames per second can be played
back at normal, slow, or slower speed.
8.12 Skew Deviation test
In this test, the goggles collect eye data. The high speed camera captures the image of the eye. The OTOsuiteVestibular
software processes the eye position data and calculates the degrees of eye deviation.
The test provides the ability to assess the patient’s ocular alignment using an alternate cover test. The purpose of this test
is to identify if ocular misalignment occurs as a result of covering and uncovering the eye. The patient is in a sitting pos-
ition. The patient’s eye movement is recorded with the eyes in the primary position and as the left eye is covered and
uncovered.
8.13 Collecting Skew Deviation data
For information about settings available in Test Options when collecting data, refer to the Reference Manual.
Note• The temporary patient is available to allow testing to start without entering any patient data. Refer to Patient
data entry/lists ► 7 to create a new patient or open an existing patient.
1. The Synchronized Room Video will be displayed. The Head Position Feedback is not viewable for the Skew Devi-
ation test because the head is stationary.
2. Instruct the patient. (For example, tell them to keep the eyes open and stare straight ahead.)
Otometrics - ICS Impulse USB
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8 Oculomotor