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Complete Lea Numbers® Single Number Book Instant 90% Discount [oVciRsKm]
The Single Number Book is ideal for situations in which the child/adult cannot perform when tested with a line test. This book can help determine the best resolution of the visual pathway in a child/adult with amblyopia or impaired vision. Single opt
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The Single Number Book is ideal for situations in which the child/adult cannot perform when tested with a line test. This book can help determine the best resolution of the visual pathway in a child/adult with amblyopia or impaired vision. Single optotype line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent, 0.10 to 2.00. Includes an isolating mask, instructions, and 13 offset pages for easy flipping.
Dimensions: 5" x 5" (12.7 cm x 12.7 cm).
Testing distance: 10 feet/3 meters.
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