Evaluation of the New Web-Based “Colour Assessment and Diagnosis” Test

Seshadri, Jayasree; Christensen, Jerry; Lakshminarayanan, Vasudevan; Bassi, Carl J.

doi:10.1097/01.opx.0000182211.48498.4e

Cited by 24 publications

(10 citation statements)

References 9 publications

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“…Moreover, these tests require trained clinician administration and instrumentation. Along with these clinical color vision tests, there are other commercially available computer-based tests such as the Cambridge Colour Test (CCT) (Mollon & Regan, 2000), the modified CCT for children (Goulart et al, 2008) Lakshminarayanan, & Bassi, 2005) which do measure color thresholds and may be found in clinics that specialize in color vision. If color threshold measures are to be used as a diagnostic indicator of visual system dysfunction in chronic visual conditions such as DR, AMD, and glaucoma, then it would be beneficial if computer-based tests could be developed to have a simple interface that allows patients to self-administer the tests, and have a small form factor (Anderson, Burford, & Emmerton, 2016).…”

Section: Introductionmentioning

confidence: 99%

Normative values for a tablet computer-based application to assess chromatic contrast sensitivity

et al. 2017

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Tablet computer displays are amenable for the development of vision tests in a portable form. Assessing color vision using an easily accessible and portable test may help in the self-monitoring of vision-related changes in ocular/ systemic conditions and assist in the early detection of disease processes. Tablet computer-based games were developed with different levels of gamification as a more portable option to assess chromatic contrast sensitivity. Game 1 was designed as a clinical version with no gaming elements. Game 2 was a gamified version of game 1 (added fun elements: feedback, scores, and sounds) and game 3 was a complete game with vision task nested within. The current study aimed to determine the normative values and evaluate repeatability of the tablet computer-based games in comparison with an established test, the Cambridge Colour Test (CCT) Trivector test. Normally sighted individuals [N = 100, median (range) age 19.0 years (18-56 years)] had their chromatic contrast sensitivity evaluated binocularly using the three games and the CCT. Games 1 and 2 and the CCT showed similar absolute thresholds and tolerance intervals, and game 3 had significantly lower values than games 1, 2, and the CCT, due to visual task differences. With the exception of game 3 for blue-yellow, the CCT and tablet computer-based games showed similar repeatability with comparable 95% limits of agreement. The custom-designed games are portable, rapid, and may find application in routine clinical practice, especially for testing younger populations.

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Section: Introductionmentioning

confidence: 99%

Normative values for a tablet computer-based application to assess chromatic contrast sensitivity

et al. 2017

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“…El test se debe realizar en una habitación oscura, con la única iluminación de la pantalla del ordenador. El test es únicamente válido para identificar DVC en los ejes rojo-verde, puesto que su efectividad en el eje tritán no ha sido probada 13 .…”

Section: Colour Assessment and Diagnosisunclassified

Revisión de los principales test clínicos para evaluar la visión del color

Fanlo-Zarazaga

Vasquez

Royo

2019

Archivos de la Sociedad Española de Oftalmología

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a r c h s o c e s p o f t a l m o l. 2018;xxx(xx):xxx-xxx El inconveniente principal del amplio elenco de test disponibles para el estudio de la visión del color es la dificultad para comparar los resultados entre test, ya que los datos publicados suelen tener unidades distintas, requiriendo experiencia para su correcta interpretación. En la actualidad, no existe unanimidad sobre qué test de color resulta ser el más completo; es recomendable utilizar al menos 2 para asegurar los diagnósticos y tener una información más completa sobre la percepción visual de los pacientes.

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“…Random luminance masking occurs independently of any chromatic differences between the figure and the background. It can be seen that the figures are equal in time‐averaged luminance with respect to the background . CAD is designed using the four‐alternative, forced‐choice experimental procedure .…”

Section: Introductionmentioning

confidence: 99%

“…It can be seen that the figures are equal in time-averaged luminance with respect to the background. 15 CAD is designed using the four-alternative, forced-choice experimental procedure. 16 CCT involves using a dynamic adaptive variation of the chromatic difference between the Landolt "C" figure and the background [refer to Fig.…”

Section: Introductionmentioning

confidence: 99%

Screen‐based color vision test for digital quantification of deutan color defects using a color‐calibrated monitor

2016

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Display technologies are used in various industries. However, few studies on color vision testing using self‐luminous displays are reported. In this study, a screen‐based color vision test, termed the digital color vision test (DCVT), is developed on a color‐calibrated monitor. A control bar is adjusted by the observer to build just noticeable chromatic difference ellipses in CIE u′v′ chromaticity diagram, which indicate the capabilities of subjects' color visions. Ten color‐normal observers and 13 deutan observers participated in the psychophysical experiments. The observers also performed the other two typical diagnostic tests (D‐15 and anomaloscope). Results from the experiment using the adjustment psychophysical method for digital quantification of deutan color vision defects are presented. It is found that the diagnosis accuracy of the DCVT is approximately equivalent to those of D‐15 and anomaloscope tests.

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Evaluation of the New Web-Based “Colour Assessment and Diagnosis” Test

Abstract: These results showed that the CAD test is a valid test for identifying congenital red-green color deficiency. Further testing is required in a larger population of anomalous trichromats.

Cited by 24 publications

References 9 publications

Normative values for a tablet computer-based application to assess chromatic contrast sensitivity

Normative values for a tablet computer-based application to assess chromatic contrast sensitivity

Revisión de los principales test clínicos para evaluar la visión del color

Screen‐based color vision test for digital quantification of deutan color defects using a color‐calibrated monitor

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