The effects of reflected glare and visual field lighting on computer vision syndrome.
Background: Computer vision syndrome is common and affects performance of visual tasks. Background illumination, light source, light compensation, position of the display, contrast and glare are environmental factors associated with computer vision syndrome. The aim of this study is to investigate t...
| Publicado en: | Clinical & Experimental Optometry Vol. 102; no. 5; pp. 513 - 521 |
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| Autores principales: | , , , , , , , |
| Formato: | Journal Article |
| Publicado: |
Taylor & Francis Ltd
Sep2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=138274218&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 138274218 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08164622 1CKN jtl: Clinical & Experimental Optometry issn: 08164622 maglogo: N pubinfo: dt: Sep2019 vid: 102 iid: 5 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 138274218 138274218 NLM30805993 10.1111/cxo.12878 NLM30805993 138274218 ppf: 513 ppct: 8 formats: tig: atl: The effects of reflected glare and visual field lighting on computer vision syndrome. aug: au: Lin, Chao‐Wen Yeh, Feng‐Ming Wu, Bo‐Wen Yang, Chang‐Hao Lin, Chao-Wen Yeh, Feng-Ming Wu, Bo-Wen Yang, Chang-Hao affil: Department of Ophthalmology, National Taiwan University Hospital, Taipei Taiwan sug: subj: Computer Terminals Visual Perception Physiology Visual Fields Physiology Eye Diseases Diagnosis Lighting Ocular Physiology Physiology Strabismus Physiopathology Male Young Adult Pupil Physiology Eye Diseases Physiopathology Adult Visual Acuity Physiology Female Adult: 19-44 years Male Female ab: Background: Computer vision syndrome is common and affects performance of visual tasks. Background illumination, light source, light compensation, position of the display, contrast and glare are environmental factors associated with computer vision syndrome. The aim of this study is to investigate the effects of reflected glare and visual field lighting on computer vision syndrome.Methods: In a reflected glare experiment, participants performed a two-hour visual task using a glossy, matte, or glare-free surface display in two visual environments (normal, glare). In a visual field lighting experiment, participants performed the visual task in dim lighting, uneven supplementary lighting, or uniform supplementary lighting. Visual function parameters, including critical fusion frequency, heterophoria, amplitude of accommodation and accommodative facility were evaluated by the investigators and a visual fatigue questionnaire was completed before and after the visual task. Visual performance was also recorded. In addition, the variation of pupil size under different lighting conditions was analysed.Results: Critical fusion frequency was the only visual function parameter which decreased significantly after the visual task. The questionnaire score was significantly higher in a glare environment and was lower when the task was performed using a glare-free display. Visual performance was significantly worse in the glossy display group. The increment in the questionnaire score was smaller in the uniform supplementary lighting group. Visual performance was significantly worse in the dim lighting or uneven supplementary lighting group, but not in the uniform supplementary lighting group. Variation in pupil size was significantly greater in the dim lighting condition than in the supplementary lighting condition.Conclusion: Critical fusion frequency is an effective indicator of computer vision syndrome. Glare-free displays could alleviate visual fatigue and preserve visual performance. Uniform supplementary lighting could decrease variation in pupil size and prevent eye strain. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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