17
13912-101 Rev. B
Instructions for Use (Continued)
Alignment & Measurement (Continued)
Note: If the patient cannot see the green target, use the canthus marks on the sides of the
instrument to set the vertical alignment of the eye and then have the patient move
forward until the center of their forehead is against the Forehead Rest pad.
Note: The patient should be seated comfortably on the patient side of the instrument.
Note: The patient should be positioned in a way that encourages them to lean forward
with their chin as close to the instrument as possible. This will reduce the
difficulties associated with misalignment and low confidence readings.
Figure 8, Improper patient alignment
(chin moved away from unit)
Figure 7, Proper patient alignment
(chin close to unit)
Measure
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