| Description | This contrast sensitivity flip book includes a series of seven contrast levels for accurate and precise vision testing. This levels decrease throughout the test beginning with acuity, 25%, 10%, 5%, 2.5%, 1.25% and ending with .06%. The use of several | Each line on the Rabin Contrast Sensitivity Test is a lower contrast than the one before it, using Log CS steps. This progression in contrasts helps to identify the patient's contrast sensitivity. Furthermore, the test helps to detect subtle effects |
| Features | - Notations for testing at 1 meter (40 in.)
- Acuity range 20M to 1.6M (20/200, 6/120 to 20/32, 6/9.5 equiv.)
- Contrast varies by page: full contrast, 25% , 10%, 5%, 2.5%, 1.25%, and .06%
- Spiral bound
- Test includes a soft-tipped pointer, 1 mater cord, recording forms (CAT. NO. 2514) and instructions
- Measures 36 X 36cm (14.25 X 14.25 in.)
- Traditional Sloan Optotypes
- Uses different optotype combinations for each level to prevent undesired memorization
| - Contrast sensitivity test comparable to the Small Letter Contrast Test
- Detects subtle effects of defocus, low luminance and glare
- 20/50 letter size at 4 meters (13 feet)
- Log CS increases 0.25 steps per row (0.05 log CS/letter)
- For use with CAT. NO. 914 Small Illuminator Cabinet
- Includes soft-tipped pointer, recording forms and test instructions
- Available with glare filter CAT. NO. 2147 and low photopic filter CAT. NO. 2148
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