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Low Contrast (20% W, 10% M) 40 cm (16 in.) Colenbrander Continuous Text Eye Chart


Cat. No. 4051
Price: $20.00

Quantity:
ships immediately

 Notations for testing at 40 cm (16 in.)

 

Acuity range 8M to .20M (20/400, 6/120 to 20/10, 6/3 equiv.)

Front and back sides are 10% low Contrast

40 cm (16 in.) cord attached to maintain proper viewing distance

Measures 18 X 23 cm ( 7 X 9 in.)

Design uses Continuous Text to simulate everyday tasks, such as reading the newspaper

All 10% Low Contrast on both sides Wording may differ from picture.

Near Point card uses a 10% contrast on both sides of the test. This tests for low contrast sensitivity while using a continuous text design. This design helps to simulate everyday situations, like reading the newspaper. Conventional, high-contrast letter chart acuity captures only one aspect of visual performance. Low contrast acuity is equally important for activities of daily living, since most everyday objects have less than black-on-white contrast, are larger than the smallest letters seen on a letter chart and are seen at various intermediate distances.

 

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