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Computer vision syndrome: a review.

Clayton Blehm1, Seema Vishnu, Ashbala Khattak

  • 1Department of Ophthalmology and Visual Sciences, University of Texas at Houston, Hermann Eye Center, Houston, Texas, USA.

Survey of Ophthalmology
|April 27, 2005
PubMed
Summary

Computer vision syndrome, a common issue from screen use, causes eyestrain and blurred vision. Dry eye is a major factor, and treatment involves eye drops and workstation adjustments.

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Area of Science:

  • Ophthalmology
  • Human-Computer Interaction
  • Occupational Health

Background:

  • Increased computer use leads to prevalent ocular symptoms like eyestrain, blurred vision, and irritation.
  • These symptoms are collectively termed computer vision syndrome (CVS).
  • CVS can stem from ocular or ergonomic factors, with dry eye being a primary contributor.

Purpose of the Study:

  • To describe the characteristics of computer vision syndrome.
  • To outline available treatment modalities for CVS.
  • To discuss the influence of display characteristics on visual comfort.

Main Methods:

  • Review of existing literature on computer vision syndrome.
  • Analysis of ocular and extraocular etiologies.
  • Discussion of display characteristics (lighting, glare, refresh rates) and their visual effects.

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Main Results:

  • Dry eye is identified as the major contributor to computer vision syndrome symptoms.
  • Ocular surface abnormalities and accommodative spasms are potential causes.
  • Display characteristics like lighting, glare, and refresh rates impact visual comfort.

Conclusions:

  • Effective treatment for computer vision syndrome requires a multidirectional approach.
  • Combining ocular therapy (lubricating drops, computer glasses) with ergonomic workstation adjustments is recommended.
  • Further research is needed to define CVS causes and improve treatment efficacy.