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. 2016 Jun 18;9(6):881-5.
doi: 10.18240/ijo.2016.06.16. eCollection 2016.

Visual and ocular effects from the use of flat-panel displays

Esteban Porcar  1 , Alvaro M Pons  1 , Amalia Lorente  2
Affiliations

Visual and ocular effects from the use of flat-panel displays

Esteban Porcar et al. Int J Ophthalmol. .

Abstract

Aim: To evaluate the prevalence of eye symptoms in a non-presbyopic population of video display unit (VDU) users with flat-panel displays.

Methods: One hundred and sixteen VDU users with flat-panel display from an urban population participated in the study; their ages ranging from 20 to 34y. There were 60 females and 56 males. An eye examination to rule out the presence of significant uncorrected refractive errors, general binocular dysfunctions and eye conditions was carried out. In order to determine and quantify the type and nature of eye symptoms, participants were asked to answer written questionnaire and the results were grouped by gender, age and number of hours a day spent using a VDU.

Results: Seventy-two percent of participants reported eye symptoms related to VDU use. Eye symptoms from moderate-to-severe were found in 23% of participants. The main symptom was moderate-to-severe tired eyes (14%); followed by sensitivity to bright lights (12%), blurred vision at far distances (10%), eyestrain or dry eye or irritated or burning eyes (9%), difficulty in refocusing from one distance to another or headache (8%) and blurred vision at near or intermediate distances (<4%). Eye symptoms were greater among females (P=0.005) and increased with VDU use, markedly above 6h spent using a VDU in a typical day (P=0.01).

Conclusion: Significant eye symptoms relate to VDU use often occur and should not be underestimated. The increasing use of electronic devices with flat-panel display should prompt users to take appropriate measures to prevent or to relieve the eye symptoms arising from their use.

Keywords: asthenopia; computer terminals; computer vision syndrome; eye symptoms.

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Figures

Figure 1
Figure 1. The median total score of eye symptoms obtained by the participants (n=116) in relation to socio-demographic factors.
Figure 2
Figure 2. Bland-Altman plot of repeatability between two sessions (A and B) in 38 participants.
See this image and copyright information in PMC

References

    1. Rosenfield M, Howarth PA, Sheedy JE, Crossland MD. Vision and IT displays: a whole new visual world. Ophthalmic Physiol Opt. 2012;32(5):363–366. - PubMed
    1. Rosenfield M. Computer vision syndrome: a review of ocular causes and potential treatments. Ophthalmic Physiol Opt. 2011;31(5):502–515. - PubMed
    1. Blehm C, Vishnu S, Khattak A, Mitra S, Yee RW. Computer vision syndrome: a review. Surv Ophthalmol. 2005;50(3):253–262. - PubMed
    1. Bali J, Neeraj N, Bali RT. Computer vision syndrome: a review. J Clin Ophthalmol Res. 2014;2(1):61–68.
    1. Hayes JR, Sheedy JE, Stelmack JA, Heaney CA. Computer use, symptoms, and quality of life. Optom Vis Sci. 2007;84(8):738–744. - PubMed

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