Subjects with colour vision deficiency in the community: what do primary care physicians need to know?

Chan, Xin Bei V; Goh, Shi Min S; Tan, Ngiap Chuan

doi:10.1186/s12930-014-0010-3

Cited by 46 publications

(43 citation statements)

References 51 publications

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“…CB participants scored significantly lower on the CBQoL Work subscale than NV participants. This supports previous research finding that CB creates a barrier to entry to a range of occupations, and besides those occupations, problems are experienced with colours within many jobs that do not so obviously rely on colour [ 3 ].…”

Section: Discussionsupporting

confidence: 89%

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Development and validation of a questionnaire assessing the quality of life impact of Colour Blindness (CBQoL)

et al. 2017

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BackgroundCongenital colour vision deficiency (CVD), commonly called ‘colour blindness’, affects around 8% of men and 0.4% of women. Although many aspects of health (e.g. change in colour of urine) and healthcare (e.g. coloured medication, colour-coded diagnostic tests), and modern life depend upon colour coding (e.g. graphs, maps, signals), the impact of colour blindness on everyday life is not generally considered a topic of importance. This study is the first to create and validate a questionnaire measuring the quality of life (QoL) impact of being colour blind.MethodsThis study consisted of two phases. Firstly, the questionnaire design and development phase was led by an expert panel and piloted on a focus group. Secondly, an online sample of 128 men and 291 women filled in the questionnaire, and the psychometric properties of the questionnaire were analysed using principal components analysis (PCA). The scores of colour blind (CB) participants and normal-sighted controls, controlling for age and sex, were compared using matched t-tests.ResultsThe PCA resulted in a questionnaire with three domains (or subscales): QoL for Health & Lifestyle, QoL for Work, and QoL for Emotions. Controlling for age, there was a significantly greater negative impact on QoL for CB people than normal-sighted controls in regards to confusion over colour in various aspects of their health (p = 5 × 10−7), work (p = 1.3 × 10−7), and emotional life (p = 6 × 10−5).ConclusionColour blindness can significantly impact quality of life for health, emotions, and especially careers. The tool developed here could be useful in future clinical studies to measure changes in CBQoL in response to therapy in conditions where colour vision is affected. We also discuss ways in which everyday problems related to colour vision might be reduced, for example, workplaces could avoid colour coding where a non-colour alternative is possible.

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Section: Discussionsupporting

confidence: 89%

“…In their review of literature on the impact of colour blindness on everyday functioning, Chan et al describe effects across the lifespan [ 3 ]. In ‘play age’, children will experience learning difficulties (e.g.…”

Section: Introductionmentioning

confidence: 99%

Development and validation of a questionnaire assessing the quality of life impact of Colour Blindness (CBQoL)

et al. 2017

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“…In UK, prevalence among histology students was 8.7% [16]. In Western Nepal, in a study on 964 school children (10)(11)(12)(13)(14)(15)(16)(17)(18)(19) [18]. John L Campbell, Anthony J Spalding, Fraz A Mir, Jennifer Birch (1999) compared CVD a group of doctors with CVD with a control group.…”

Section: Discussionmentioning

confidence: 99%

“…Color vision is so crucial for medical profession that previously without any statutory provision students were barred from pursuing MBBS course, various colleges and Medical Council of India (MCI) Figure 1. Summary of activities that can be affected by CVD across various stages of life [13].…”

Section: Discussionmentioning

confidence: 99%

Color Vision Deficiency in Medical Students in Jammu & Kashmir, India

2019

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Non recognition of any of the three colors is known as color blindness. Color blindness is the commonly used term for deficiency of color vision. Word color blindness is a misnomer as anyone labeled as it, is extremely rare to be totally color blind hence more correctly called color vision deficiencies (CVD). Color vision is a function of three types of cone pigments present in retina. The incidence of Color vision deficiency is common in medical profession and affects the diagnosis and treatment of patients but still it remains the most neglected aspect of vision. Color is very important sign used in medical profession, but there is no effective screening for Color Vision Deficiency (CVD) at any level of medical profession. The present study was undertaken to find out CVD in medical students of Government medical college Srinagar. Material and Method: A total of 300 medical students (MBBS, BDS, NURSING) including 154 males and 146 females between 18-20 years of age were examined for CVD in Medical College using Ishihara pseudoisochromatic plates. After taking history on structured proforma the students were shown Ishihara’s test plates under day light at normal reading distance. Results: Among 154 males, 11 were color deficient (7.14%), and among 146 females, 1 (0.68%) had color vision deficiency. Deutranomalia (41.6%) was the most common type of CVD followed by Protanomalia (25%) then Protanopia (16.7%) and Deutranopia (16.7%), respectively. Conclusions: With this high incidence of color vision deficiency, students with CVD may feel difficulty in day-today practice in medical field. So, screening for CVD in medical students at the time of admission is very important which may help in early management of CVD and with timely counseling proper adaptive strategies can be adopted.

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“…Color-blindness affects a-large-number of individuals, with protanopia (red-deficient: L-cone absent) and deuteranopia (green-deficient: M-cone absent) being the-most-common-types. In-individuals, with Northern-European-ancestry, as-many-as 8 % of men, and 0.4 % of women, experience congenital-color-deficiency (Chan et al, 2014). Likewise, according-to the Howard Hughes Medical Institute, in the-United-States, about 7 % of the male-population, or about 10.5 million men; and 0.4 % of the-female-population either cannot distinguish red from green, or see red and green, differently from how others do (HHMI, 2006).…”

Section: Color-blindness-conditionmentioning

confidence: 99%

Universal Design to Limit Food Cross-Contamination: Incased Set of Kitchen Utensils with Five Color-Coded Food Chopping Boards and Knifes

2019

ISDE

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This-study is focused on a-conceptual-design of a-kitchen-appliances/utensils-set, comprising of five-color-coded food-chopping-boards and five-matching-color-coded-knifes, to-reduce cross-contamination at private-homes, aswell-as at food-establishments. Selected-relevant-Patents, as-well-as products, available locally and internationally, were analyzed. The-Joseph-Joseph Index™ Color-Coded Chopping-Boards set (of four), was chosen as a-point of reference for the-current-design; its-seven-identified-limitations have-directed the-scope of the-current-design. Target-specifications/objectives, of the-set, were formulated from the-document-analysis, while Pair-wise-Comparison-Charts were-used, to-rank the-importance of the-objectives, in the-different-levels. The-best-rankeddesign (out of the-four-alternatives made) was chosen, via standard Engineering-Design Weighted-Decision-Matrix (EDWDM) and 'Drop and Re-vote' (D&R) method. 2D-drawings, of the-best-design-alternative, were created via computer-aided-design (CAD) AutoCAD-software 2018, while 3D-modeling, of the-set and all-itscomponents, was produced by Autodesk-Inventor-Version: 2016 (Build 200138000, 138). Designed-labels (positioned on each-board and each-knife, as-well-as on the-set itself, as an-inclined-panel) were introduced, tocater for the-people with color-blindness (according to-the-fundamental-principles of the-Universal-design), and also to-avoid-confusion (as a-reminder which board is which) for all-users. The-study adopted 'analysis' method of materials-selection. The-main objectives, of the-intended-set, was used as a-guide, in-preliminary-materialsselection. This-concise-study has focused on conceptual-design only; and, hence, it-is further-recommends to: (i) carry-out a-detailed-design; (ii) select a-specific-material (out of the-group, identified by this-study); (iii) choose a-mode of fabrication of the-set; (iv) examine the-possibility of incorporating of anti-microbial-agent(s) and/or coating(s); (v) fabricate the-prototype(s); (vi) conduct explorative-use-ability-trials; and (vii) analyze themarketing-aspect of the-final-set. This-work is potentially-beneficial-to engineering-product-design students and faculty, as-well-as to-households and food-establishments (subject-to successful-implementation).

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Subjects with colour vision deficiency in the community: what do primary care physicians need to know?

Cited by 46 publications

References 51 publications

Development and validation of a questionnaire assessing the quality of life impact of Colour Blindness (CBQoL)

Development and validation of a questionnaire assessing the quality of life impact of Colour Blindness (CBQoL)

Color Vision Deficiency in Medical Students in Jammu & Kashmir, India

Universal Design to Limit Food Cross-Contamination: Incased Set of Kitchen Utensils with Five Color-Coded Food Chopping Boards and Knifes

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