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LEA SYMBOLS® – Low Contrast ring binder 52028
The Symbol :
251100
LEA SYMBOLS® – Low Contrast ring binder
Kolor/Wzór
662.00
| The quantity in the package | 1 opak |
| Delivery time to | 20 days |
| Shipping price | The Lack Of |
| The Availability Of |
na zamówienie
|
| Pełna oferta tablic | |
| The bar code | |
| EAN | |
Zamówienie telefoniczne: 22 651 82 85
A test for quickly measuring low contrast visual acuity at 25%, 10%, 5%, 2.5%, and 1.25% contrast by measuring the distance at which the symbols are seen. 10M symbols correspond to visual acuity 0.10 at 1 meter, 0.05 at 0.5 meters and 0.3 at .3 meters. VA values are thus easy to calculate. This test includes a table for conversion to Snellen equivalent VA values. Includes a response key and 5 pages.
Dimensions: 3.25" x 9" (8.25 cm x 22.9 cm).
Click here for the LEA Contrast Sensitivity Guide.
Click here for the Low Contrast Test Recording Form.
Przykładowe przeprowadzenie badania : https://www.good-lite.com/instructions/270500.cfm
Instrukcja użytkowania 250800Karta wyników
Przelicznik skali Decimal/Snellen
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