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LEA SYMBOLS® DISTANCE VISION SCREENER
The Symbol :
259900
LEA SYMBOLS® DISTANCE VISION SCREENER
349.00
| The quantity in the package | 1 opak |
| Shipping within | 48 hours |
| Shipping price | 0 |
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Zamówienie telefoniczne: 22 651 82 85
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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.
Click here for the 252000 & 259900 Guide.
Przykładowe przeprowadzenie badania :
Instrukcja użytkowaniaPrzelicznik skali Decimal/Snellen
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