Prevalence of dry eye in video display terminal users: a cross-sectional Caucasian study in Italy

Gemma Caterina Maria Rossi, Luigia Scudeller, Federica Bettio, Gian Maria Pasinetti, Paolo Emilio Bianchi

Research output: Contribution to journalArticlepeer-review


PURPOSE: To estimate the prevalence of dry eye among video-terminal (VDT) users and to assess risk factors for dry eye in this population. STUDY DESIGN: A single-centre, cross-sectional study was carried out on subjects employed as VDT workers and on a control group. METHODS: Demographic data, years spent working at a VDT, number of effective hours at VDT/day, number and hours of breaks/day were considered. All subjects underwent a complete ophthalmic examination and completed the Italian version of the computer vision symptom scale 17-item (CVSS17) questionnaire. Both groups were classified as definite, suspect and non-dry eye syndrome (DES). RESULTS: One-hundred and ninety four subjects completed the study; 70 (36.1%) of which represented the control group, and 124 (63.9%) represented the VDT group. Among VDT workers, 29 (23.4%) presented definite DES and 55 (44.4%) suspect DES, while among controls, only 2 (2.9%) presented definite DES and 37 (52.8%) suspect DES. In the univariate analysis, the DES group was older (p 
Original languageEnglish
Pages (from-to)1315-1322
Number of pages8
JournalInternational Ophthalmology
Issue number6
Publication statusPublished - Jun 2019


  • Dry eye
  • Occupational health
  • Ocular surface
  • Prevalence
  • Quality of life
  • Video display terminal (VDT)
  • Adult
  • Case-Control Studies
  • *Computer Terminals
  • Cornea/pathology
  • Cross-Sectional Studies
  • Dry Eye Syndromes/*epidemiology
  • Female
  • Humans
  • Italy/epidemiology
  • Male
  • Middle Aged
  • Occupational Diseases/*epidemiology
  • Quality of Life
  • Risk Factors
  • Tears/metabolism
  • Young Adult


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