How To Focus The Vision Screener - Welch Allyn Spot VS100 Directions For Use Manual

24 Vision Screener operation

How to focus the vision screener

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Note
Position vision screener approximately 36 inches (1 meter) away from
subject.
Hold vision screener close to body and lean forward and backward until
the screen becomes gray.
Make small movements until the spinner appears on the gray screen.
Eyes should be wide open and kept on the center of the frame for best
results.
Welch Allyn Spot Vision Screener