Some visual, optometric and perceptual effects of coloured glasses

Wilkins, Arnold J.; Neary, Catherine

doi:10.1111/j.1475-1313.1991.tb00216.x

Cited by 46 publications

(27 citation statements)

References 15 publications

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“…Researchers have found that colour preferences for overlays and precision tinted lenses are idiosyncratic, specific, and consistent (Evans and Drasdo 1991;Evans et al 1994;Jeanes et al 1997;Wilkins 1994;Wilkins et al 1992bWilkins et al , 1994Wilkins et al , 2005. It is also not unusual for individuals to have different colour preferences for their overlays than for their precision tinted lenses (Evans and Drasdo 1991;Gole et al 1989;Lightstone et al 1999;Wilkins 1994Wilkins , 2003Wilkins and Lewis 1999;Wilkins and Neary 1991). In this paper, the term coloured filters will be used as a generic term to include both coloured overlays and precision tinted lenses.…”

Section: Coloured Filtersmentioning

confidence: 92%

“…Pattern glare results from hypersensitivity to repetitive patterns Wilkins et al 1984), including regularly spaced parallel stripes such as lines of text on a page (Evans et al , 1996Wilkins et al 1984Wilkins et al , 2004Wilkins et al , 2007Wilkins and Nimmo-Smith 1987) and in some instances single words (Wilkins et al 2004(Wilkins et al , 2007. Pattern glare can result in the same symptoms as MISViS (Bouldoukian et al 2002;Evans et al 1994Evans et al , 1995Evans et al , 1996Wilkins and Evans 2001;Wilkins and Neary 1991) and has been linked to light sensitivity (Evans et al 1996;Wilkins 1993Wilkins , 1995Wilkins , 2003. In the visual cortex there are orientation columns, which are groups of cells that respond together to stimuli with particular orientations (Hubel 1995;Wilkins et al 2004).…”

Section: Cortical Hyperexcitabilitymentioning

confidence: 93%

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A Functional Neuroimaging Case Study of Meares–Irlen Syndrome/Visual Stress (MISViS)

et al. 2011

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The aim of this study is to evaluate the data from a participant in a reading study who had a diagnosis of Meares-Irlen syndrome/visual stress (MISViS). MISViS is characterised by visual distortions and somatic issues, which are remediated using coloured filters. The authors present a case study providing descriptive neurobiological comparisons of MISViS versus a control group. The study involved eleven English language speakers who participated in behavioural and neuroimaging versions of a language experiment with varied proportions of regular and exception words. Behavioural measures included accuracy and response times. Neuroimaging was conducted using a 1.5T Siemens Sonata MRI. The MISViS participant's data were removed from the overall experiment and analysed as a case study. Impulse response functions (IRFs) and percentage of active voxels were extracted from four regions of interest: BAs 17, 18, 19, and the postcentral gyrus (PG) and two control regions (BA6 and left BA45). The results indicated that significant differences existed between the control group and the MISViS participant for IRF intensity in two regions (BA6 and PG) and percentage of active voxels in four regions (BA17, BA19, PG, and BA6). No significant differences occurred in left BA45 for either variable of interest. No significant differences were found for behavioural measures. In conclusion, our findings offer one of the first neurobiological descriptions of differences in IRF intensity and percentage of active voxels in visual and somatosensory cortex during a language experiment for a participant with MISViS in the absence of migraine compared to controls.

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Section: Coloured Filtersmentioning

confidence: 92%

Section: Cortical Hyperexcitabilitymentioning

confidence: 93%

A Functional Neuroimaging Case Study of Meares–Irlen Syndrome/Visual Stress (MISViS)

et al. 2011

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“…Although there is no direct evidence that chromatic flicker influences visual performance, indirect evidence suggests that it might be important, at least for sensitive populations. Wilkins and Wilkinson (1991) developed a tint for eyeglasses to reduce the degree of chromatic modulation from fluorescent lamps, and Wilkins and Neary (1991) demonstrated visual and perceptual benefits of tinted glasses for people with a history of perceptual distortion and reading difficulties. These findings suggest that chromatic flicker might confound the literature in this area, given the wide variation in lamp types and methodologies used in these investigations, some that are subject to flicker (fluorescent and highintensity discharge) and some that are not (incandescent).…”

Section: Visual Performancementioning

confidence: 99%

A critical examination of perceptual and cognitive effects attributed to full-spectrum fluorescent lighting

Veitch¹,

McColl

2001

Ergonomics

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1080/00140130010002008Ergonomics, 44, 3, pp. 255-279, 2001-02-01 A Critical examination of perceptual and cognitive effects attributed to full-spectrum fluorescent lightingA Critical examination of perceptual and cognitive effects attributed to full-spectrum fluorescent lighting Veitch, J. A.; McColl, S. L.A version of this paper is published in / Une version de ce document se trouve dans : Ergonomics, v. 44, no. 3, Feb. 2001, pp. 255-279 www.nrc.ca/irc/ircpubs NRCC-42840Veitch AbstractFull-spectrum fluorescent lighting has been credited with causing dramatic improvements in vision, perception, and cognitive performance, as compared to other fluorescent lamp types. These effects are hypothesised to occur because of similarity between FSFL emissions and daylight, which is said to have evolutionary superiority over other light sources. This review, covering the period 1945-1998, critically considers the evidence for these claims. In general, poor-quality research has resulted in an absence of simple deterministic effects that can be confidently attributed to fluorescent lamp type. Promising avenues for lighting-behaviour research include investigations of cognitive mediators of lighting-behaviour relationships, and flicker rates and colour rendering effects on visual processing, appearance judgements, and affect. Good lighting solutions are more complex than lamp type specification.

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“…112 Wilkins and Neary examined the visual, perceptual, and optometric effects of individualized tinted eyeglasses on people who had a history of reading difficulties and perceptual distortions. 113 The tinted lenses reduced discomfort and perceptual anomalies when viewing grating filters, and they caused a small improvement in the speed of visual search. However, the optimal tint varies for each individual; a general lighting solution to achieve the same end is unlikely.…”

Section: Arousal and Stressmentioning

confidence: 99%

Lighting Quality Contributions from Biopsychological Processes

Veitch

2001

Journal of the Illuminating Engineering Society

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. Society, 30, 1, pp. 3-16, 2001-04-01 Lighting quality contributions from biopsychological processes Veitch, J. A. Journal of the Illuminating Engineering Lighting quality contributions from biopsychological processes Veitch, J.A.A version of this paper is published in / Une version de ce document se trouve dans :Journal of the Illuminating Engineering Society, v. 30, no. 1, 2001, pp. 3-16 www.nrc.ca/irc/ircpubs NRCC-42468© AbstractInternal processes, both biological and psychological, are thought to mediate the relationships between luminous conditions and such behavioral outcomes as task performance, mood, social behavior, aesthetic judgements and satisfaction. This review paper summarizes the state of knowledge concerning mediating biopsychological processes: visibility, photobiology, and stress and arousal. Visibility is well-understood and obviously relevant to lighting practice. Photobiology, however, is a new entrant to the realm of lighting research; its findings could have important implications for recommended illuminance levels if these were based on more than visibility. Stress and arousal, interrelated concepts, are popular notions, but close examination reveals only weak support for these mechanisms as explanations of lighting effects on behavior. The improved organization of research and increased predictive power that would result from clear exposition of theoretical mechanisms in lighting research holds promise for progress in linking research and application.Lighting Quality and Biopsychology / 2 Introduction Renewed interest in lighting quality emerged in the early 1990s, in parallel with the development of energy codes and standards. Lighting practitioners remembered the energy conservation strategies of the 1970s energy crisis, in which delamping reduced overall light levels and produced uneven distributions of light. Energy was saved, but lighting quality declined. Lighting designers of the day decried this simplistic approach to conservation and feared that similar strategies would occur again.1-3 Committees were struck by the major associations, and many conference sessions on lighting quality were convened.The definition of lighting quality most widely adopted in these discussions has been an emergent one, in which lighting quality is the degree of excellence achieved, in terms of meeting human needs 4 and integration of these outcomes with energy conservation and architecture.5 Veitch and Newsham...

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Some visual, optometric and perceptual effects of coloured glasses

Cited by 46 publications

References 15 publications

A Functional Neuroimaging Case Study of Meares–Irlen Syndrome/Visual Stress (MISViS)

A Functional Neuroimaging Case Study of Meares–Irlen Syndrome/Visual Stress (MISViS)

A critical examination of perceptual and cognitive effects attributed to full-spectrum fluorescent lighting

Lighting Quality Contributions from Biopsychological Processes

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