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dc.contributor.authorCammack, Jocelyn
dc.contributor.authorWhight, John
dc.contributor.authorCross, VInette
dc.contributor.authorRider, Andrew
dc.contributor.authorWebster, Andrew
dc.contributor.authorStockman, Andrew
dc.date.accessioned2017-09-20T12:40:09Z
dc.date.available2017-09-20T12:40:09Z
dc.date.issued2016-08-22
dc.identifier.citationPsychophysical measures of visual function and everyday perceptual experience in a case of congenital stationary night blindness 2016, Volume 10:1593 Clinical Ophthalmology
dc.identifier.issn1177-5483
dc.identifier.doi10.2147/OPTH.S99593
dc.identifier.urihttp://hdl.handle.net/2436/620677
dc.description.abstractAn appreciation of the relation between laboratory measures of visual deficit and everyday perceptual experience is fundamental to understanding the impact of a visual condition on patients and so to a fuller characterization of the disorder. This study aims to understand better the interpretative processes by which modified sensory information is perceived by a patient with congenital stationary night blindness and the adaptive strategies that are devised to deal with their measurable visual loss. Psychophysical measurements of temporal resolution, spectral sensitivity, and color discrimination were conducted on a 78-year-old male patient with the condition, who was also interviewed at length about the ways in which his diagnosis affected his daily life. Narrative analysis was employed to identify the relation between his subjective perceptual experiences and functional deficits in identifiable components of the visual system. Psychophysical measurements indicated a complete lack of rod perception and substantially reduced cone sensitivity. Two particular effects of this visual loss emerged during interviews: 1) the development of navigational techniques that relied on light reflections and point sources of light and 2) a reluctance to disclose the extent of visual loss and resulting lifelong psychosocial consequences. This study demonstrates the valuable complementary role that rich descriptive patient testimony can play, in conjunction with laboratory and clinical measurements, in more fully characterizing a disorder and in reaching a more complete understanding of the experience of vision loss. It also evidences the particular suitability of filmmaking techniques as a means of accessing and communicating subjective patient experience.
dc.language.isoen
dc.relation.urlhttps://www.dovepress.com/psychophysical-measures-of-visual-function-and-everyday-perceptual-exp-peer-reviewed-article-OPTH
dc.subjectCongenital stationary night blindness
dc.subjectGRM6 gene
dc.subjectnarrative analysis
dc.subjectperception
dc.subjectpsychophysics
dc.subjectquality of life
dc.titlePsychophysical measures of visual function and everyday perceptual experience in a case of congenital stationary night blindness
dc.typeJournal article
dc.identifier.journalClinical Ophthalmology
dc.source.volume10
dc.source.issue
dc.source.beginpage1593
dc.source.endpage1606
refterms.dateFOA2018-08-21T14:18:05Z
html.description.abstractAn appreciation of the relation between laboratory measures of visual deficit and everyday perceptual experience is fundamental to understanding the impact of a visual condition on patients and so to a fuller characterization of the disorder. This study aims to understand better the interpretative processes by which modified sensory information is perceived by a patient with congenital stationary night blindness and the adaptive strategies that are devised to deal with their measurable visual loss. Psychophysical measurements of temporal resolution, spectral sensitivity, and color discrimination were conducted on a 78-year-old male patient with the condition, who was also interviewed at length about the ways in which his diagnosis affected his daily life. Narrative analysis was employed to identify the relation between his subjective perceptual experiences and functional deficits in identifiable components of the visual system. Psychophysical measurements indicated a complete lack of rod perception and substantially reduced cone sensitivity. Two particular effects of this visual loss emerged during interviews: 1) the development of navigational techniques that relied on light reflections and point sources of light and 2) a reluctance to disclose the extent of visual loss and resulting lifelong psychosocial consequences. This study demonstrates the valuable complementary role that rich descriptive patient testimony can play, in conjunction with laboratory and clinical measurements, in more fully characterizing a disorder and in reaching a more complete understanding of the experience of vision loss. It also evidences the particular suitability of filmmaking techniques as a means of accessing and communicating subjective patient experience.


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