Contrast Sensitivity Tests

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Holladay Automated Contrast Sensitivity System™ (HACSS)

Holladay Automated Contrast Sensitivity System™ (HACSS)

M&S Technologies, Inc.

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  • Features:
    • Testing for CSF Under Glare Conditions at low, medium or high luminance levels. Can be performed at either mesopic or photopic luminance levels
    • Preferred Optotypes; Rotationally symmetric targets and randomly presented optotypes. Eliminates biases from the patient with non-rotational symmetric optical aberrations such as residual astigmatism, trefoil, coma, etc.
    • ANSI & ISO Guideline Conformance; Conducts contrast sensitivity testing at (1.5, 3, 6, 12 and 18) cycles per degree and at light levels of 85 cd/m2 (photopic) and 3 cd/m2 (mesopic). Plus, includes all of the options and parameters the agencies require for contrast testing
    • Conduct Standard Vision Testing; Integrate with the M&S Smart System® comprehensive visual acuity, contrast sensitivity, fixation and video display systems. Approved for clinical trials using the eETDRS and ATS protocols for visual acuity
    • Quick Test Feature that reduces test time on patient return visits by starting at 0.3 log units above previous threshold, minimizing test time to less than 3 minutes per eye
    • Automated-user interactive testing eliminates technician bias or erroneous data
    • Store multiple test results by patient to track changes in CSF function over time; results can be stored locally or transferred to any media storage device
    • Graph, compare and print patent results against normative data
    • Utilizes Smart System® integrated database to store and transmit test results within minutes of test completion via internet connections
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Linear Sine Wave Grating with Normative Data

Linear Sine Wave Grating with Normative Data

M&S Technologies, Inc.

  • Features:
    • Utilize automated protocol that provides results with normative data or manually test patients using the M&S Remote Control or Keypad
    • Measure contrast at ANSI Standard 18, 12, 6, 3 and 1.5 Cycles/Degree from 100% to 0.8% contrast
    • Normative data study conducted in 2010 by Illinois College of Optometry.
    • All targets are precisely sized according to the testing distance for maximum accuracy
    • Test in under 5 minutes
    • Perfect for monitoring progression of cataracts and assessing quality of vision
    • Display a graph comparing your patient’s results to normative data at the end of the testing algorithm
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Colenbrander Mixed Contrast Reading Card

Colenbrander Mixed Contrast Reading Card

Precision Vision®

  • Features:
    • Mixed high-contrast and 10% contrast
    • Unrelated simple sentences at 4th grade level
    • Serves as an educational tool to demonstrate the effect of contrast deficits to patients and family members.
    • Multi-distance testing
    • Acuity range 10m to 0.6m in Times Roman Font (20/320, 6/95 to 20/16, 6/4.8 equiv.)
    • Includes test instructions and diopter ruler
    • Measures 43 x 38 cm (17 x 11 in.)
    • Folds in half to 21.5 x 38 cm (8.5 x 11 in.)
    • Also available in various languages
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Colenbrander Reading, Intermediate and Computer Chart (2 card set)

Colenbrander Reading, Intermediate and Computer Chart (2 card set)

Precision Vision®

  • Features:
    • Calibrated for 40 cm (16 in), 63 cm (25 in), 100 cm (40 in)
    • Measures 8.5" x 11"
    • Includes complete instructions and recording sheet
    • Uses 10% calibrated Contrast Sensitivity level with Acuity
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Complete Rabin Contrast Sensitivity Set

Complete Rabin Contrast Sensitivity Set

Precision Vision®

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  • Features:
    • 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
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Low Contrast and Mixed Contrast Eye Charts

Low Contrast and Mixed Contrast Eye Charts

Precision Vision®

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  • Features: Inquire
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Mars Letter Contrast Sensitivity Test

Mars Letter Contrast Sensitivity Test

Precision Vision®

  • Features:
    • Three charts, for the left eye, right eye and binocular testing, or for repeated testing without letter sequence memorization
    • Rapid administration, with easy, accurate scoring
    • Easy to store and protect
    • Easy to illuminate (e.g., with instrument stand lamp)
    • Each chart mounted on durable plastic
    • Designed for near testing (40 or 50 cm)
    • Low cost
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Multi-Contrast Sloan Letter Flip Book

Multi-Contrast Sloan Letter Flip Book

Precision Vision®

  • 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

Patti Stripes™ Square Wave Grating Paddles

Precision Vision®

  • 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

Pelli-Robson SLOAN Letter Contrast Chart

Precision Vision®

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  • 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

Rabin Contrast Sensitivity (CS) Test

Precision Vision®

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  • 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

SLOAN Low Contrast Letter Set Book

Precision Vision®

  • 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

Tumbling "E" Low Contrast Flip Book

Precision Vision®

  • 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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