Name: LEA SYMBOLS® – Low Contrast ring binder 52028
Brand: Good-Lite
Availability: OutOfStock

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LEA SYMBOLS® – Low Contrast ring binder 52028

LEA SYMBOLS® – Low Contrast ring binder 52028

The Symbol : 251100

Good-Lite

LEA SYMBOLS® – Low Contrast ring binder

Kolor/Wzór

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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