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| Company | Precision Vision® | Precision Vision® | Precision Vision® | Precision Vision® | Precision Vision® |
| Item | Pelli-Robson SLOAN Letter Contrast Chart | Complete Rabin Contrast Sensitivity Set | Rabin Contrast Sensitivity (CS) Test | Rabin Super Vision Test | Tumbling "E" Low Contrast Flip Book |
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| Description | Designed by DG Pelli, JG Robson and A J Wilkins, because they see contrast sensitivity as a realistic assessment of how well the patient sees large faint objects. The chart follows the luminance, font, and letter spacing recommendations of the | Test Includes CAT. NO. 2126 Rabin Contrast Sensitivity Test CAT. NO. 2147 Glare Filter CAT. NO. 2148 Low Photopic Filter CAT. NO. 914 Small Illuminator Cabinet CAT. NO. 915 Adjustable Base | 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 | Developed by Jeff Rabin, OD, PhD,US Air Force School of Aerospace Medicine This Super Vision test includes visual acuity and letter contrast sensitivity (CS) on a single chart. The top portion of the chart tests for acuity vision while the bottom | This flip book is great for vision studies and research world wide. The Tumbling "E" vision chart uses only one optotype for testing. Patients not familiar with the Roman alphabet simply have to gesture or sign which direction they see the "E" facing |
| Features | - Features Traditional Sloan Optotypes
- For use at 40 in (1m)
- Includes two charts and two scoring pads
- Illumination of 85 cd/m² is key to good results
| - A new 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 ft.)
- Log CS increases 0.25 steps per row (0.05 log CS/ letter)
- Includes soft-tipped pointer, recording forms and test instructions
| - 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
| - Super vision test is designed for use at 4 meters (13 feet, 1.5 inches)
- Notations are printed on the chart in LogMAR 0.2 to -0.6 on the top half of the chart
- On the bottom half notations are printed in LogCS with a letter size of 5M, 4/5, 13/16.5 (6/7.5, 20/25 equiv.)
- High contrast VA (20/32 to 20/5 log MAR scale; 20/5 is 4x smaller than 20/20)
- Used by branches of the US Armed Forces
| - For testing at 2 meters (6.5 ft.)
- Each page it's own contrast level at 100%, 2.5% and 1.25%
- Acuity range 20M to 1.6M
- Includes test instructions, recording forms (Cat. No. 2514) and soft-tipped pointer
- Measures 13.5 X 14 in.
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| Product Number | Pelli-Robson | 2120 | 2126 | 2128 | 2380 |
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