Objectives: To design and validate a questionnaire to measure visual symptoms related to exposure to computers in the workplace.
Study design and setting: Our computer vision syndrome questionnaire (CVS-Q) was based on a literature review and validated through discussion with experts and performance of a pretest, pilot test, and retest. Content validity was evaluated by occupational health, optometry, and ophthalmology experts. Rasch analysis was used in the psychometric evaluation of the questionnaire. Criterion validity was determined by calculating the sensitivity and specificity, receiver operator characteristic curve, and cutoff point. Test-retest repeatability was tested using the intraclass correlation coefficient (ICC) and concordance by Cohen's kappa (κ).
Results: The CVS-Q was developed with wide consensus among experts and was well accepted by the target group. It assesses the frequency and intensity of 16 symptoms using a single rating scale (symptom severity) that fits the Rasch rating scale model well. The questionnaire has sensitivity and specificity over 70% and achieved good test-retest repeatability both for the scores obtained [ICC = 0.802; 95% confidence interval (CI): 0.673, 0.884] and CVS classification (κ = 0.612; 95% CI: 0.384, 0.839).
Conclusion: The CVS-Q has acceptable psychometric properties, making it a valid and reliable tool to control the visual health of computer workers, and can potentially be used in clinical trials and outcome research.
Keywords: Asthenopia; Computer terminals; Diagnosis; Eye diseases; Occupational exposure; Occupational health.
Copyright © 2015 Elsevier Inc. All rights reserved.
Abed Alah M, Abdeen S, Selim N, AlDahnaim L, Bougmiza I. Abed Alah M, et al. Front Public Health. 2023 Nov 9;11:1273886. doi: 10.3389/fpubh.2023.1273886. eCollection 2023. Front Public Health. 2023. PMID: 38026296 Free PMC article.
Qolami M, Mirzajani A, Ronda-Pérez E, Cantó-Sancho N, Seguí-Crespo M. Qolami M, et al. Int Ophthalmol. 2022 Nov;42(11):3407-3420. doi: 10.1007/s10792-022-02340-3. Epub 2022 May 11. Int Ophthalmol. 2022. PMID: 35543851 Free PMC article.
Cantó-Sancho N, Ronda E, Cabrero-García J, Casati S, Carta A, Porru S, Seguí-Crespo M. Cantó-Sancho N, et al. Int J Environ Res Public Health. 2022 Apr 8;19(8):4506. doi: 10.3390/ijerph19084506. Int J Environ Res Public Health. 2022. PMID: 35457379 Free PMC article.
González-Pérez M, Susi R, Antona B, Barrio A, González E. González-Pérez M, et al. Invest Ophthalmol Vis Sci. 2014 Jun 17;55(7):4504-11. doi: 10.1167/iovs.13-13818. Invest Ophthalmol Vis Sci. 2014. PMID: 24938516
Heus P, Verbeek JH, Tikka C. Heus P, et al. Cochrane Database Syst Rev. 2018 Apr 10;4(4):CD009877. doi: 10.1002/14651858.CD009877.pub2. Cochrane Database Syst Rev. 2018. PMID: 29633784 Free PMC article. Review.
Jaschinski W. Jaschinski W. Klin Monbl Augenheilkd. 2003 Aug;220(8):551-8. doi: 10.1055/s-2003-41877. Klin Monbl Augenheilkd. 2003. PMID: 12953158 Review. German.
Al-Dossary SK. Al-Dossary SK. Clin Ophthalmol. 2024 Aug 29;18:2427-2438. doi: 10.2147/OPTH.S474832. eCollection 2024. Clin Ophthalmol. 2024. PMID: 39224176 Free PMC article.
Lee CY, Yang SF, Hsiao CH, Sun CC, Chang CK, Huang JY, Hwang YS. Lee CY, et al. Diseases. 2024 Aug 22;12(8):192. doi: 10.3390/diseases12080192. Diseases. 2024. PMID: 39195191 Free PMC article.
Chaiwiang N, Koo-Akarakul J. Chaiwiang N, et al. Clin Optom (Auckl). 2024 Jul 29;16:201-210. doi: 10.2147/OPTO.S460868. eCollection 2024. Clin Optom (Auckl). 2024. PMID: 39100733 Free PMC article.
Gasheya KA, Belay AA, Abegaze T, Zele YT, Daba C. Gasheya KA, et al. Front Public Health. 2024 May 9;12:1341031. doi: 10.3389/fpubh.2024.1341031. eCollection 2024. Front Public Health. 2024. PMID: 38784585 Free PMC article.
Junaid Tahir M, Aymen U, Mehmood Q, Sohaib Asghar M, Kumari U, Hassan Z, Naz N, Rafiq N, Tayyeb M, Ullah I, Abbasher Hussien Mohamed Ahmed K, Alwalid O. Junaid Tahir M, et al. Ann Med Surg (Lond). 2024 Mar 4;86(4):1933-1941. doi: 10.1097/MS9.0000000000001882. eCollection 2024 Apr. Ann Med Surg (Lond). 2024. PMID: 38576948 Free PMC article.