LEA SYMBOLS® DISTANCE VISION SCREENER
In stock
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Product details
This test is designed for amblyopia screening and testing children who have difficulties when tested with the standard distance charts (#250250 or #250150). The background is gray with the exception of a white rectangle spaced at 50% surrounding each line of symbols. Line sizes range from 20/80 to 20/16 (6/24 to 6/4.8) equivalent, 0.25 to 1.25. Includes response key. Includes 10 offset pages for easy flipping. Instructions are printed on the inside cover.
Dimensions: 9" x 3.25" (22.9 cm x 8.25 cm).
Testing distance: 10 feet/3 meters
