Colour vision: A review of the Cambridge Colour Test and other colour testing methods

Hasrod, Nabeela; Rubin, Alan M.

doi:10.4102/aveh.v74i1.23

Cited by 17 publications

(23 citation statements)

References 20 publications

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“…Cambridge Colour Test is a display-based pseudoisochromatic test (Hasrod et al, 2015., Regan et al, 1994.) that provides the just-noticeable stimuli as result in defined directions from a reference point in the CIE 1976 UCS diagram (Schanda, 2007.).…”

Section: Cambridge Colour Testmentioning

confidence: 99%

Observing the Effect of Chromatic Adaptation on Colour Discrimination Under Different Viewing Conditions

Urbin

Nagy

Wenzel

2019

PROCEEDINGS OF the 29th Quadrennial Session of the CIE

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The objective of our study was to compare the effect of spectrally characterized chromatic adaptation on colour discrimination. Comparing just-noticeable stimuli of normal colour observers under two types of chromatic adaptation conditions with equal chromaticity and luminance but with different spectral content and field of view shows the importance of paying attention to illumination parameters that define the actual state of chromatic adaptation.

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Section: Cambridge Colour Testmentioning

confidence: 99%

Observing the Effect of Chromatic Adaptation on Colour Discrimination Under Different Viewing Conditions

Urbin

Nagy

Wenzel

2019

PROCEEDINGS OF the 29th Quadrennial Session of the CIE

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“…The advantage of computer control is that the difference between stimulus and background can be adjusted dynamically according to the individual performance 30 . The Trivector test uses pseudoisochromatic stimuli that exhibit dynamic variations in chromaticity between the targets and their background 31 . The Ellipse test uses described ellipses of discrimination (MacAdam ellipses) as parts of regions of the chromaticity diagram that contains all colors that are discriminated against all indiscriminate colors.…”

Section: Introductionmentioning

confidence: 99%

Colour discrimination thresholds in type 1 Bipolar Disorder: a pilot study

Fernandes

Andrade

et al. 2017

Sci Rep

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Although some studies have reported perceptual changes in psychosis, no definitive conclusions have been drawn about visual disturbances that are related to bipolar disorder (BPD). The purpose of the present study was to evaluate colour vision in BPD patients. Data were recorded from 24 participants: healthy control group (n = 12) and type 1 BPD group (n = 12). The participants were 20–45 years old and they were free from neurological disorders and identifiable ocular disease and had normal or corrected-to-normal visual acuity. Colour discrimination was evaluated using the Lanthony D-15d, Trivector and Ellipse tests, using a psychophysical forced-choice method. The relationship of visual measures to mood state and cognitive function was also investigated. The results showed that BPD patients had higher colour discrimination thresholds in the D15d (p < 0.001), Trivector (p < 0.001) and Ellipse (p < 0.01) tests compared with healthy controls. Linear regression analysis showed that mood state was related to colour discrimination. BPD individuals were not impaired in cognitive tasks. The present study provided new evidence of potential links between type 1 BPD and visual processing impairments. This research suggests a new direction for studies and the need for research in this field of study.

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“…4 During a clinical examination, the physician can often see a well-defined, round or oval shallow elevation of the retina in the macula, which points to a diagnosis of CSR. Fundus Fluorescein angiography is performed to confirm diagnosis and assess the site of leakage.…”

Section: Introductionmentioning

confidence: 99%