Contrast Sensitivity Tests

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Multi-Contrast Sloan Letter Flip Book
  • Features:
    • 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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Patti Stripes™ Square Wave Grating Paddles
  • Features:
    • Patti Stripes consists of six gratings at 0.3, 0.6, 1.2, 2.4, 4.8 and 9.6 CPCM (cycles per centimeter) along with the CPD (cycles per degree) for the three test distances of 25, 50, and 100 cm (10, 20 and 40 in.) printed on the handle.
    • Set includes four paddles, three with gratings printed on both sides and one solid gray face for presentation.
    • Extremely durable made from 4 mm plastic
    • Can be washed with soap and water or cleaned with alcohol
    • These will hold up to years of service
    • Measures 17.8 X 32 cm (7 X 12.5 in.)
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Pelli-Robson SLOAN Letter Contrast Chart
  • 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
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Rabin Contrast Sensitivity (CS) Test
  • Features:
    • 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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Rabin Super Vision Test

Rabin Super Vision Test

Precision Vision®

  • Features:
    • 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
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SLOAN Low Contrast Flip Book

SLOAN Low Contrast Flip Book

Precision Vision®

  • Features:
    • Multi-distance testing
    • Contains five pages of optotypes of 9.5M size
    • 5 Sloan letters Contrast varies by page: 25%, 10%, 5%, 2.5%, and 1.2%
    • Two versions available for repetitive testing (version 2 CAT. NO. 2192)
    • Test includes a soft-tipped pointer, legend card, recording forms (CAT. NO. 2514) and test instructions
    • Measures 23 X 8.25 cm (9 X 3.25 in.)
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SLOAN Low Contrast Letter Set Book
  • 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
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Tumbling "E" Low Contrast Flip Book
  • Features:
    • 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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