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LEA SYMBOLS® CARDS 40M AND 60M
The Symbol :
256100
LEA SYMBOLS® CARDS 40M AND 60M
Kolor/Wzór
329.00
| The quantity in the package | 1 opak |
| Shipping within | 48 hours |
| Shipping price | The Lack Of |
| The Availability Of |
dostępny
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| Pełna oferta tablic | |
| The bar code | |
| EAN | |
Zamówienie telefoniczne: 22 651 82 85
These five LEA SYMBOLS® Cards can be used for presentation as single optotypes or arranged in a row as a line test. When the cards are next to each other, the space between the symbols is equal to the width of the symbols. To determine the visual acuity, use the following formula:
VA = Viewing Distance Used(meters) / M-value
Dimensions:
60M cards - 8.6" x 8.6" (21.9 cm x 21.9 cm).
40M cards - 6" x 6" (15.25 cm x 15.25 cm).
Click here for the 256100 Guide.
Przelicznik skali Decimal/Snellen.
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