Clinical Resources
Summary of Independent Evaluation of Konan Medical CCT HD
"The CCT HD, with very precise color calibration, can achieve the very low cone contrast values needed to accurately quantify cone contrast thresholds even for CVN (Color Vision Normal) individuals. The capability to test CVN individuals is essential in order to research the relationship between color vision and operationally relevant performance.
Additionally, the CCT HD, with precise calibration and excellent test-retest reliability can also enable early detection of disease, improved ability to quantify the effect of hypoxia and other environmental stressors on vision, and improved ability to investigate the potential effects of chemicals/pharmaceuticals.
The precise calibration also enables binocular testing, which is not possible with the RCCT (Rabin CCT) due to the ceiling effect. The RCCT was a substantial improvement over PIP tests (e.g., Ishihara) when it was introduced, and the CCT HD is a substantial improvement over other commercially available CCTs. "
Evaluation of Konan Medical CCT HD
James Gaska, Marc Winterbottom, and Steve Hadley
711 HPW/RHBC OBVA Laboratory
Eleanor O’Keefe, Elizabeth Shoda, and Alex Van Atta KBR, Inc.; 2021 Feb.
Air Force Research Laboratory
711th Human Performance Wing
Airman Systems Directorate
Wright-Patterson Air Force Base, OH 45433
Air Force Materiel Command
United States Air Force
Evaluation of Konan Medical CCT HD:
Feb 2021 Final Report
James Gaska, Marc Winterbottom, and Steve Hadley
711 HPW/RHBC OBVA Laboratory
Eleanor O’Keefe, Elizabeth Shoda, and Alex Van Atta KBR, Inc. ; 2021 Feb.
Start with the customer – find out what they want and give it to them.
AIR FORCE RESEARCH LABORATORY
711TH HUMAN PERFORMANCE WING,
AIRMAN SYSTEMS DIRECTORATE,
WRIGHT-PATTERSON AIR FORCE BASE
AIR FORCE MATERIEL COMMAND
UNITED STATES AIR FORCE
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Operational Based Vision Assessment Cone Contrast Test: Description and Operation
Gaska J, Winterbottom M, van Atta A. Operational Based Vision Assessment Cone Contrast Test: Description and Operation. USAF School of Aerospace Medicine, Aeromedical Research Department Wright-Patterson AFB; 2016 Jun 1.
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The Diabetes Visual Function Supplement Study (DiVFuSS)
Chous AP, Richer SP, Gerson JD, Kowluru RA. The diabetes visual function supplement study (DiVFuSS). British Journal of Ophthalmology. 2015 Jun 17:bjophthalmol-2014.
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Evaluation of Acquired Color Vision Deficiency in Glaucoma Using the Rabin Cone Contrast Test
Niwa Y, Muraki S, Naito F, Minamikawa T, Ohji M. Evaluation of Acquired Color Vision Deficiency in Glaucoma Using the Rabin Cone Contrast TestRabin Test for Glaucoma Color Vision Deficiency. Investigative ophthalmology & visual science. 2014 Oct 1;55(10):6686-90.
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Rabin Color Cone Contrast Testing and Retinal Structure in Multiple Sclerosis
Samuel A, Yiu H, Songster C, Bolivar D, Gelfand J, Green A. Rabin Color Cone Contrast Testing and Retinal Structure in Multiple Sclerosis (P3. 227). Neurology. 2015 Apr 6;84(14 Supplement):P3-227.
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Evaluation of visual function impairments in patients with dry age-related macular degeneration
Lad EM, Chandramohan A, Ventura A, Cousins SW. Evaluation of visual function impairments in patients with dry age-related macular degeneration. Investigative Ophthalmology & Visual Science. 2014 Apr 30;55(13):5213-.
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Rapid Quantification of Color Vision: The Cone Contrast Test
Rabin J, Gooch J, Ivan D. Rapid quantification of color vision: the cone contrast test. Investigative ophthalmology & visual science. 2011 Feb 1;52(2):816-20.
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Evaluation of clinical validity of the Rabin conecontrast test in normal phakic or pseudophakiceyes and severely dichromatic eyes
Fujikawa M, Muraki S, Niwa Y, Ohji M. Evaluation of clinical validity of the Rabin cone contrast test in normal phakic or pseudophakic eyes and severely dichromatic eyes. Acta Ophthalmologica. 2017 May 31.
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A Performance Comparison of Color Vision Tests for Military Screening
Walsh DV, Robinson J, Jurek GM, Capó-Aponte JE, Riggs DW, Temme LA. A Performance Comparison of Color Vision Tests for Military Screening. Aerospace medicine and human performance. 2016 Apr 1;87(4):382-7.
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A MONTE CARLO SIMULATION OF FOUR CONTRAST THRESHOLD ESTIMATION TECHNIQUES: CLINICAL VISION TEST SELECTION FOR OPERATIONALLY-BASED VISION ASSESSMENT
Winterbottom, M., J. P. Gaska, S. T. Wright, and J. M. Gooch. “Monte Carlo simulation of four contrast threshold estimation techniques: clinical vision test selection for Operationally-Based Vision Assessment.” Aviation, Space, and Environmental Medicine 83, no. 3 (2012).
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Rapid Quantification of Color Vision: The Cone Contrast Test
Rabin J, Gooch J, Ivan D. Rapid quantification of color vision: the cone contrast test. Investigative ophthalmology & visual science. 2011 Feb 1;52(2):816-20.
READ FULL ARTICLE
Evaluation of clinical validity of the Rabin conecontrast test in normal phakic or pseudophakiceyes and severely dichromatic eyes
Fujikawa M, Muraki S, Niwa Y, Ohji M. Evaluation of clinical validity of the Rabin cone contrast test in normal phakic or pseudophakic eyes and severely dichromatic eyes. Acta Ophthalmologica. 2017 May 31.