Contrast Sensitivity Tests

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OCULUS Binoptometer® 4P
  • Features:
    • Visual Acuity Test -
       With Landolt rings (in acc. with DIN EN ISO 8596), numbers, letters, tumbling E and acuity symbols for children (optional).
      New: Now also ETDRS Charts are available for the visual acuity test.
    • Color Vision Test -
       Large selection of color plates according to Ishihara and Velhagen-Broschmann colour test plates. The display is calibrated to the exact color temperature, thus guaranteeing ideal color rendering.
    • Binocular Test -
       The binocular vision tests are generated by a modern LCD shutter system, which is very similar to natural visual conditions. Furthermore, a variety of stereo-vision and phoria tests guarantees a reliable evaluation of the binocular vision functions.
    • Contrast Sensitivity Test -
       A program for testing contrast sensitivity under photopic conditions is also integrated. The contrast sensitivity test can be conducted at various visual acuity levels with Landolt rings, letters and numerals as options.
    • Mesopic Vision and Glare Sensitivity -
       Visual performance varies in different light conditions.
      To test visual function under mesopic conditions, a Landolt ring is presented in an environment of low light density (0.032 cd/m²), corresponding to the situation of night driving. The Landolt ring (visual acuity level 20/200) is presented in four different contrast stages (1:23 / 1:5 / 1:2.7 / 1:2). Glare sensitivity is tested by simulating the dimmed light of an approaching vehicle. The test with this glare light is also conducted in the four contrast stages.
      New: Due to additional corrective lenses in the range of -0,5 D to -3,5 D the possibility to check night myopia is now available.
    • Peripheral Visual Field Test -
       The visual field is tested at seven visual field locations at the right and at the left. Fixation control is done by means of a changing fixation mark in the center of the test screen.
    • Additional Corrective Lenses -
       If asthenopic symptoms are present or if the visual acuity values are abnormal, the additional corrective lenses in the range of +4,5 D to -3,5 D can be used to determine whether an undetected (latent) hyperopia (up to +1,5 D), an age-related long sightedness (presbyopia) or myopia, especially night myopia, exist.
    • Range of Accommodation Measurement -
       Measurement of the range of accommodation can be a valuable tool for deciding whether special eyeglasses for computer users are needed. The Duane test figure makes a speedy and informative measurement possible.
    • Optotypes for Children -
       In addition to the tumbling-E test, additional optotypes for testing the visual acuity of children have been added. These are based on the H-test optotypes.
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Adult Near Contrast Test

Adult Near Contrast Test

Good-Lite (Formerly Richmond Products, Inc.)

  • Features:
    • Contrast Levels 100%, 25%, 10%, 5%, 2.5%
    • Both ETDRS Letters and Continuous Reading Examples
    • 20/400 to 20/10 in 17 increments
    • Shows Snellen in Feet/ Meters, LogMAR, Decimal and Letter Size
    • Pages tabbed at each contrast level
    • Includes Instructions, Score Card and Recording Form
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Low Contrast Flip Chart with a different sequence of Lea Numbers

Low Contrast Flip Chart with a different sequence of Lea Numbers

Good-Lite (Formerly Richmond Products, Inc.)

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Low Contrast Flip Chart with Lea Numbers

Low Contrast Flip Chart with Lea Numbers

Good-Lite (Formerly Richmond Products, Inc.)

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Low Contrast Flip Chart with Lea Symbols

Low Contrast Flip Chart with Lea Symbols

Good-Lite (Formerly Richmond Products, Inc.)

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Low Contrast Flip Chart with Lea Symbols

Low Contrast Flip Chart with Lea Symbols

Good-Lite (Formerly Richmond Products, Inc.)

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Pediatric Near Contrast Test

Pediatric Near Contrast Test

Good-Lite (Formerly Richmond Products, Inc.)

  • Features:
    • Provides both Lea Symbols™ and Lea Numbers™
    • Contrast Levels 100%, 25%, 10%, 5%, 2.5% and 1.25%
    • To simplify presentation, over-lay template can hide optotypes sizes
    • Full contrast shows 20/400 to 20/10 in 17 increments, other levels show 15 levels
    • Shows Optotypes in Snellen Feet and Meters, LogMAR, Decimal and Letter Size
    • Pages tabbed at each contrast level. Instructions, Score and Recording Forms
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Rabin Cone Test

Rabin Cone Test

INNOVA Systems, Inc.

  • Features:
    • Scores cone function and tracks changes over time
      • Earlier pathology detection
      • Rapid disease progression monitoring
      • Treatment efficacy measurement
    • Patient-friendly reports graph visual function
      • Better treatment adherence
      • Increased supplement prescriptions
    • Developed in cooperation with the US Air Force
      • Published, peer-reviewed
      • Reliable and repeatable
      • Over 400 in use
    • Accurate Medicare coding
      • Validated against Anomoloscope
      • Fully calibrated
    • Ideal for the ophthalmic lane or screening room, includes:
      • Acuity tests
      • Contrast Sensitivity
      • Night Vision
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Holladay Automated Contrast Sensitivity System™ (HACSS)
  • 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
  • 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 min
    • 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
  • 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)
  • 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
  • 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
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Mars Letter Contrast Sensitivity Test
  • 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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