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Poor Lighting and Visual Impairments Among Administration Workers

Marina Samuneva-Zhelyabova, Ivaylo Zhelyabov


Introduction: Typical for modern society is the use of computers for both professional and non-professional activities. This is the reason for a significant impact not only on visual comfort but also on occupational productivity. Between 64% and 90% of computer users experience symptoms such as eyestrain, headaches, ocular discomfort, dry eye, diplopia, and blurred vision after prolonged computer use.

Administration workers are exposed to daily forced work pose and prolonged work on the computer and in most workplaces there is poor lighting. This fact intensifies all the negative symptoms related to the problems with vision.

Aim: The aim of our study is to find the relationship between poor lighting and visual impairments among administration workers.

Materials and Methods:  A sociological method—a survey, was used . The results of the study were presented using descriptive statistics. The study was conducted among 386 workers in administration. The male participants were 15.8%, and 84.2% were female.

Results: Participants who reported burning in the eyes were 69%, 65.3% had dry eyes, and 42.5% of the participants had flashes or black spots in front of the eyes. The part of participants who worked in poor lighting was 54%. The results from health analyses of the data from mandatory routine preventive exams for 2020 showed that the share of eye diseases was 92.14% of all examined workers. The part of newly diagnosed eye diseases was 45.7%. The largest share of workers had myopia, followed by workers with presbyopia, hypermetropia, astigmatism and one worker with optic neuritis.

Conclusion: The results from the questionnaire show that there are many risk factors and symptoms which predispose to the appearance of eye diseases among workers. The health analyses confirm this statement. It is necessary to take emergency measures to limit these factors.


administration workers, eye diseases, poor lighting

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Rosenfield M., Computer vision syndrome: a review of ocular causes and potential treatments, 2011, Ophtalmic and Psychological Optics, Vol. 31, Issue 5, p. 502-515, ISSN 0275 – 5408,;

García-Muñoz Á, Carbonell-Bonete S, Cacho-Martínez P., Symptomatology associated with accommodative and binocular vision anomalies. J Optom. 2014;7(4):178-92;

Mohamud M., Frequency of presenting clinical features of asthenopia (ocular fatigue) in refractive patients, 2017, Ophthalmology Pakistan, Vol 7, No 03, ISSN 2518-2110 (Print), ISSN 2518-234x (Online);

Kowalska, M., Zejda, J. E., Bugajska, J., et al. “Eye symptoms in office employees working at computer stations.” Medycyna Pracy 62(2011): 1–8;

Rosenfield, M. “Computer vision syndrome: a review of ocular causes and potential treatments.” Ophthalmic and Physiological Optics 31(2011): 502-515;

Kanitkar, K., Carlson, A. N., and Richard, Y. “Ocular problems associated with computer use.”2005. Accessed January 22, 2015.;

World Health Organization. “Update on visual display terminals and workers' health.” WHO offset publication 99(1987);

Vilela M. A. P., Pellanda L. C., Cesa C. C., Castagno V. D., Asthenopia Prevalence and Risk Factors Associated with Professional Computer UseA Systematic Review, 2015, International Journal of Advance in Medical Science, Vol. 3, No. 2—November 2015, 2327-7238/15/02 051-10, doi:10.12783/ams.2015.0302.03;

Ostrovsky A, Ribak J, Pereg A, Gaton D. Effects of jobrelated stress and burnout on asthenopia among hightech workers. Ergonomics. 2012;55(8):854-62;

Thomson DW. Eye problems and visual display terminals-the facts and the fallacies. Ophthal Physiol Opt 1998; 18:111–119;

Rossignol AM, Morse EP, Summers VM & Pagnotto LD.Visual display terminal use and reported health symptomsamong Massachusetts clerical workers. J Occup Med 1987;29: 112–118;

Dain SJ, McCarthy AK & Chan‐Ling T. Symptoms in VDU operators. Am J Optom Physiol Opt 1988; 65: 162–167.

Riva MA, Arpa C, Gioco M. Dante and asthenopia: a modern visual problem described during the Middle Ages. Eye. 2014;28(4):498;

Wajuihian SO. Frequency of asthenopia and its association with refractive errors. African Vision and Eye Health. 2015 Aug 21;74(1):7-pages;

American Optometric Association. Healthy vision on the job is everyone's business. Available at:;

Bali J, Neeraj N, Bali RT. Computer vision syndrome: A review. J Clin Ophthalmol Res. 2014;2(1):61;

Vaz F. T., Henriques S. P., Silva D. S., et al, Digital Asthenopia: Portuguese Group of Ergophthalmology Survey, 2019, Acta Med Port, Apr;32(4):260-265, ISSN: 1646-0758,;

Parihar J. K., Vaibhav Kumar Jain, Piyush Chaturvedi, Jaya Kaushik, Gunjan Jain, Ashwini K.S. Parihar, Computer and visual display terminals (VDT) vision syndrome (CVDTS), Medical Journal Armed Forces India, Volume 72, Issue 3, 2016, Pagrs 270-276, ISSN 0377-1237,;

O'Brien P. D., Collum L. M. T., Dry eye: diagnosis and current treatment strategies, Curr. Allergy Asthma Rep., 4 (2004), pp. 314-319;

Schaumberg D. A., Sullivan D.A., Buring J. E., et al. Prevalence of dry eye disease among US men: estimates from the Physicians' Health Studies Arch. Ophthalmol., 127 (2009), pp. 763-768;

Sharma A., Hindman H., Aging: A Predisposition to Dry Eyes, 2014, Journal of Ophtalmology, Article ID 781683,;

van Tilborg, Mirjam M.; Murphy, Paul J.; Evans, Katharine S., Impact of Dry Eye Symptoms and Daily Activities in a Modern Office, Optometry and Vision Science: June 2017 - Volume 94 - Issue 6 - p 688-693 doi: 10.1097/OPX.0000000000001086;

Ali M, Hussain A, Malik Z., Presentation and objective findings in asthenopic patients at a tertiary eye care hospital. Al-Shifa J Ophthalmol. 2006;2(2):48-53;

Wajuihian SO, Frequency of asthenopia and its association with refractive errors, African Vision and Eye Health. 2015 Aug 21;74(1):7.


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