Welch Allyn VS100 Welch Allyn Vision Screener - User Manual - Manual (Page 4)

P/N 20146 Rev A Page 4
Device Description
The vision screener is a hand-held instrument with a video display on the rear of the unit that
provides subject visualization and alignment. Video display also provides user interface
functionality for data input and display. Operation is as simple as using a digital point and shoot
camera. The vision screener provides visual and audible cues to attract subject’s attention and
gaze. The device provides a fast data collect for easy evaluation of the most difficult pediatric
subjects of limited compliance. Each evaluation provides simultaneous binocular assessment of the
subject’s refraction, pupil size and gaze.
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Terminology – Device Details
NOTE: The USB port will only be used for software installations and import/export of vision
screener data via a USB flash drive. No cable connection to any other device is permissible.
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