Protective Filters in the Prevention of Asthenopia at a Video Display Terminal

Scullica, L; Rechichi, Caterina; Mojà, Carmelo A. De

doi:10.2466/pms.1995.80.1.299

Cited by 17 publications

(8 citation statements)

References 1 publication

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“…Shantakumari et al and Ranasinghe et al found that the use of screen filters was associated with reduced digital eye strain. Conversely, Scullica et al found that screen filters did not reduce digital eye strain in their large population of subjects. Additionally, Reddy et al found that a radiation screen filter failed to reduce digital eye strain.…”

Section: Management Of Digital Eye Strainmentioning

confidence: 90%

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Management of digital eye strain

Coles-Brennan

Sulley

Young

2019

Clinical and Experimental Optometry

203

133

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Digital eye strain, an emerging public health issue, is a condition characterised by visual disturbance and/or ocular discomfort related to the use of digital devices and resulting from a range of stresses on the ocular environment. This review aims to provide an overview of the extensive literature on digital eye strain research with particular reference to the clinical management of symptoms. As many as 90 per cent of digital device users experience symptoms of digital eye strain. Many studies suggest that the following factors are associated with digital eye strain: uncorrected refractive error (including presbyopia), accommodative and vergence anomalies, altered blinking pattern (reduced rate and incomplete blinking), excessive exposure to intense light, closer working distance, and smaller font size. Since a symptom may be caused by one or more factors, a holistic approach should be adopted. The following management strategies have been suggested: (i) appropriate correction of refractive error, including astigmatism and presbyopia; (ii) management of vergence anomalies, with the aim of inducing or leaving a small amount of heterophoria (~1.5 Exo); (iii) blinking exercise/training to maintain normal blinking pattern; (iv) use of lubricating eye drops (artificial tears) to help alleviate dry eye-related symptoms; (v) contact lenses with enhanced comfort, particularly at end-of-day and in challenging environments; (vi) prescription of colour filters in all vision correction options, especially blue light-absorbing filters; and (vii) management of accommodative anomalies. Prevention is the main strategy for management of digital eye strain, which involves: (i) ensuring an ergonomic work environment and practice (through patient education and the implementation of ergonomic workplace policies); and (ii) visual examination and eye care to treat visual disorders. Special consideration is needed for people at a high risk of digital eye strain, such as computer workers and contact lens wearers.

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Section: Management Of Digital Eye Strainmentioning

confidence: 90%

“…Many authors propose breaks as a management strategy . However, Reddy et al found that breaks alone were not associated with reduced symptoms, whereas looking at far objects during breaks was.…”

Section: Management Of Digital Eye Strainmentioning

confidence: 99%

Management of digital eye strain

Coles-Brennan

Sulley

Young

2019

Clinical and Experimental Optometry

203

133

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“…22, NO. Past studies with earlier displays and contrast enhancing filters did not demonstrate significant overall benefits of the filters (Ç akir et al 1977, 1979). More recently, Scullica et al (1995) compiled symptom information on 25 064 workers, 28% of whom used AR filters. They did not measure a relationship between symptoms and use of an AR screen.…”

Section: Introductionmentioning

confidence: 99%

Filters on computer displays – effects on legibility, performance and comfort

Sheedy¹,

Subbaram²,

Hayes³

2003

Behaviour & Information Technology

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The hypothesis is that using a contrast-enhancing filter (CEF) on a computer display will improve display legibility, reading speed and visual comfort. Twenty subjects performed reading tasks, letter counting tasks, and legibility measurements on eight display conditions: a cathode ray tube (CRT) and liquid crystal display (LCD) matched for size and luminance -each at high luminance, with two different CEFs and a lower luminance to match one of the CEFs. The CEFs decreased both luminance and contrast when applied to the displays with the brightness set high, although the contrast was better with the filters compared to a matched luminance display without a filter. The legibility measurements support the positive effect of the CEFs due to improved contrast but the larger negative effect due to reduction in luminance results in a net loss of legibility. Performance on the reading and letter counting tasks was not improved with the CEFs.

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“…Glare was found to increase the amount of time required to read relatively easy passages but decreased the amount of time to read relatively difficult passages. [62] For long it has been postulated that use of antiglare filters can help alleviate the symptoms as the ambient light passes through the glare filter two times (in and out) but the light emitted from the monitor passes through the filter only once. Conflicting reports on the intervention have been found.…”

mentioning

confidence: 99%