The Characteristics of Tritanopia

Wd, Wright

doi:10.1364/josa.42.000509

Cited by 246 publications

(94 citation statements)

References 4 publications

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“…It is important to note that only the first two genes in an array containing three or more opsin genes are expressed at sufficient levels to influence colour vision. frequent, at somewhere between 1 in 13 000 and 1 in 65 000) 32 and are inherited as autosomal dominant traits. These deficiencies are the result of missense mutations in the blue-cone photopigment gene on chromosome 7 and lead to amino-acid substitutions in the blue cone opsin sequence.…”

Section: Tritan Colour Vision Deficiencymentioning

confidence: 99%

Colour vision deficiency

Simunovic

2009

Eye

186

148

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Section: Tritan Colour Vision Deficiencymentioning

confidence: 99%

Colour vision deficiency

Simunovic

2009

Eye

186

148

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“…15 It can also detect tritan defects, which the Ishihara does not. This might be thought to be of little importance as inherited tritan defects are rare, having a prevalence of only 1 in 13,000 21 and blue and yellow are not as important in colour codes as are red, green and yellow, however, tritans can encounter occupational b. The HRR pseudoisochromatic test was developed by Hardy, Rand and Rittler.…”

Section: Richmond Hrr Test 2002 4th Edition Bmentioning

confidence: 99%

“…12 Inherited colour vision deficiency affecting 1:13,000 people, men and women equally affected. 21 Autosomal dominant inheritance. 22,62 Will tend to confuse blue, grey and yellow; white and yellow; blue, blue-greens and green.…”

Section: Red-green Abnormal Colour Vision Confirmedmentioning

confidence: 99%

Assessment of inherited colour vision defects in clinical practice

Cole

2007

Clinical and Experimental Optometry

121

127

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Background: Colour vision deficiency (CVD) has a high prevalence and is often a handicap in everyday life. Those who have CVD will be better able to adapt and make more informed career choices, if they know about their deficiency. The fact that from 20 to 30 per cent of adults with abnormal colour vision do not know they have CVD suggests that colour vision is not tested as often as it should be. This may be because of practitioner uncertainty about which tests to use, how to interpret them and the advice that should be given to patients on the basis of the results. The purpose of this paper is to recommend tests for primary care assessment of colour vision and provide guidance on the advice that can be given to patients with CVD. Methods: The literature on colour vision tests and the relationship between the results of the tests and performance at practical colour tasks was reviewed. Results: The colour vision tests that are most suitable for primary care clinical practice are the Ishihara test, the Richmond HRR 4th edition 2002 test, the Medmont C‐100 test and the Farnsworth D15 test. These tests are quick to administer, give clear results and are easy to interpret. Tables are provided summarising how these tests should be interpreted, the advice that can be given to CVD patients on basis of the test results, and the occupations in which CVD is a handicap. Conclusion: Optometrists should test the colour vision of all new patients with the Ishihara and Richmond HRR (2002) tests. Those shown to have CVD should be assessed with the Medmont C‐100 test and the Farnsworth D15 test and given appropriate advice based on the test results.

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“…1: Häufigkeit angeborener Farbsehstörungen (in Anlehnung an (Cole, 1972;Pease, 1998;Wright, 1952 (Deeb et al, 1993(Deeb et al, , 1996.…”

Section: Postrezeptorale Signalverarbeitungunclassified

Untersuchung des Farbsehens mittels Pigmentfarbtafeln und Tablet-PC

Tsimpri

Kuchenbecker

2016

Klin Monatsbl Augenheilkd

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Zusammenfassung Hintergrund: Derzeit sind bereits viele Applikationen (Apps) auch f?r ophthalmologische Anwendungen, darunter u.?a. f?r die Farbsehtestung, verf?gbar. Es gibt allerdings bis jetzt keine Farbsehtest-App, die durch klinische Studien auf einem Tablet-PC evaluiert ist. Methode: Unter standardisierten Testbedingungen wurden Farbsehtests mittels HMC-Anomaloskop und 19 Velhagen/Broschmann/Kuchenbecker-Farbtafeln unter Verwendung eines Tablet-PCs (iPad2?) durchgef?hrt. Dabei wurden die Tafeln abwechselnd als Erstes mittels Buch (Pigmentfarbtafeln) oder mittels Tablet-PC (iPad?) pr?sentiert. Es wurden insgesamt 77 freiwillige Probanden untersucht. 62 Probanden waren farbnormal und 15 m?nnliche Probanden wiesen eine Farbsehst?rung auf. Es wurde die ?bereinstimmung und das 95?%-Konfidenzintervall bestimmt. Ergebnisse: Das Durchschnittsalter aller Probanden (n?=?77) betrug 42,8???16,9 Jahre. Der mittlere Nahvisus aller Probanden betrug 0,99???0,15. Die ?bereinstimmung der Ergebnisse aller Probanden von Buch und Tablet-PC betrug 88,0?%. Das 95?%-Konfidenzintervall reichte von 81,6 bis 89,6?%. Bei den Probanden mit Farbsehst?rungen (n?=?15) bestand eine ?bereinstimmung von 83,3?%. Das 95?%-Konfidenzintervall reichte von 78,4 bis 87,3?%. Bei den Probanden ohne Farbsehst?rung (n?=?62) bestand eine ?bereinstimmung von 89,1?%. Das 95?%-Konfidenzintervall reichte von 87,1 bis 90,8?%. Die ?berlappung der Fehleranzahl von Farbnormalen und Farbfehlsichtigen lag beim Buch bei 2 Fehlern und beim Tablet PC bei 5 Fehlern. Schlussfolgerungen: Bei der Untersuchung des Farbsehens mittels Buch und Tablet-PC konnten nur in etwa vergleichbare Ergebnisse erzielt werden. Die Trennsch?rfe des Buches war besser und die Tafeln wiesen eine unterschiedliche Eignung auf, sodass nur einige Tafeln auf einem Tablet-PC Verwendung finden k?nnten.

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The Characteristics of Tritanopia

Cited by 246 publications

References 4 publications

Colour vision deficiency

Colour vision deficiency

Assessment of inherited colour vision defects in clinical practice

Untersuchung des Farbsehens mittels Pigmentfarbtafeln und Tablet-PC

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