Risk factors for computer vision syndrome among operators of two call centres in Sao Paulo, Brazil

Sá, Eduardo Costa; Ferreira, Mário; Rocha, Lys Esther

doi:10.1136/oemed-2011-100382.250

Cited by 3 publications

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“…In our study females were more likely to have mild to moderate headaches ( P = .001) and shoulder pain than males ( P = .004). This may be associated with shorter stature affecting their arms, wrists and reach which may affect the reading distance from a hand‐held computer or their height on a desk mounted computer requiring them to have a chin up position, increasing musculoskeletal symptoms . This was not studied in our study and may be an opportunity for future research.…”

Section: Discussionmentioning

confidence: 99%

Computer vision syndrome and ergonomic practices among undergraduate university students

et al. 2017

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SummaryAim: To determine the prevalence of computer vision syndrome (CVS) and ergonomic practices among students in the Faculty of Medical Sciences at The University of the West Indies (UWI), Jamaica. Method:A cross-sectional study was done with a self-administered questionnaire.Results: Four hundred and nine students participated; 78% were females. The mean age was 21.6 years. Neck pain (75.1%), eye strain (67%), shoulder pain (65.5%) and eye burn (61.9%) were the most common CVS symptoms. Dry eyes (26.2%), double vision (28.9%) and blurred vision (51.6%) were the least commonly experienced symptoms.Eye burning (P = .001), eye strain (P = .041) and neck pain (P = .023) were significantly related to level of viewing. Moderate eye burning (55.1%) and double vision (56%) occurred in those who used handheld devices (P = .001 and .007, respectively). Moderate blurred vision was reported in 52% who looked down at the device compared with 14.8% who held it at an angle. Severe eye strain occurred in 63% of those who looked down at a device compared with 21% who kept the device at eye level. Shoulder pain was not related to pattern of use. Conclusion:Ocular symptoms and neck pain were less likely if the device was held just below eye level. There is a high prevalence of Symptoms of CVS amongst university students which could be reduced, in particular neck pain and eye strain and burning, with improved ergonomic practices. | INTRODUCTIONElectronic devices, laptops, tablets, ipads and smartphones, are now an integral part of studying at universities. Smart phone use in education is rapidly developing because of Google, Wikipedia and medical related apps.1-3 Computer vision syndrome (CVS) is at risk of becoming a major public health issue. 4The American Optometric Association defines CVS as a complex of eye and vision problems related to near vision activities involving computer use. 5 The prevalence of CVS ranges from 64% to 90%amongst computer users, with nearly 60 million people affected globally. 6,7 The most frequently occurring health related problems among computer users are CVS, wrist, neck, shoulder and back pain, an over use syndrome resulting in ocular and musculoskeletal discomfort. 8-10Students, who are frequent computer users are at increased risk of CVS and poor posture.

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Section: Discussionmentioning

confidence: 99%

Computer vision syndrome and ergonomic practices among undergraduate university students

et al. 2017

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“…1,3,4 Prior to the COVID-19 Pandemic lockdown in March 2020, many studies looked at the prevalence of CVS within different populations, ranging from the general population to office workers. [5][6][7][8][9][10][11][12][13][14][15][16] The 2016 Digital Eye Strain report compiled survey responses from over 10,000 US adults found an overall self-reported CVS symptom prevalence of 65%. 6 Portello et al surveyed a cohort of 520 office workers in New York City and found that nearly 40% reported the symptom of "tired eyes" and 30% reported the symptoms of "dry eyes" and "eyestrain" occurring "at least half of the time" during a given week.…”

Section: Introductionmentioning

confidence: 99%

Computer Vision Syndrome in Undergraduate and Medical Students During the COVID-19 Pandemic

Wang¹,

Joltikov²,

Kravets³

et al. 2023

OPTH

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The purpose of this study was to evaluate Computer Vision Syndrome (CVS) in undergraduate and medical students since transitioning to online learning during the COVID-19 pandemic. Patients and Methods: This was a cross-sectional single center survey-based study using a validated CVS questionnaire (CVS-Q). The survey was distributed to 20,080 undergraduate students and 680 medical students at the University of Illinois at Chicago. The primary outcome measures were prevalence of CVS (based on CVS severity score of 6 or more), frequency of CVS and intensity of CVS symptoms. Results: The survey was completed by 2300 undergraduate students (11.4% response rate) and 154 medical students (22.6% response rate). The prevalence of CVS was 77.1% in undergraduate students and 69.1% in medical students. CVS-Q severity scores were highest for headaches and eye dryness, with over half of students reporting worsening of symptoms since March 2020. Increased time spent on online learning (undergraduate: P <0.001, medical: P = 0.018), blue light glasses usage (undergraduate: P <0.001, medical: P = 0.0015), and increased number of device usage were associated with higher CVS severity scores (undergraduate: P <0.001, medical: P = 0.0032). Conclusion: CVS among undergraduate and medical students has increased since the start of the COVID-19 pandemic. More focus should be placed on the management of CVS for students in higher education. Physicians should be cognizant of the consequences of online learning and be proactive about providing advice regarding preventative measures.

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Risk factors, incidence and persistence of symptoms from the eyes among professional computer users

Toomingas

Hagberg

Heiden

et al. 2014

Work

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BACKGROUND: Symptoms from the eyes are common among computer users. Knowledge is scarce about these problems, however. OBJECTIVES:The aim was to study risk-factors, incidence and persistence of eye-symptoms among professionally active computer users. METHODS: This was a questionnaire based prospective study where 1283 males and females from different professions and companies answered a baseline questionnaire about individual factors and working conditions, e.g. duration of daily computer work, comfort of screen work, psychosocial factors. Subjects were at baseline and 10 follow-ups asked about the number of days with eye-symptoms during the preceding month. RESULTS:The incidence-rate of symptoms persisting minimum three days was 0.38/person-year. A multivariate Hazard-ratio model showed significant associations with extended continuous computer work, tasks with high demands on eye-hand coordination, low level of control, visual discomfort, female sex and nicotine use. Eye-symptoms at baseline was a strong risk factor for new symptoms. CONCLUSION: The incidence of eye-symptoms among professional computer users is high and related to both individual and work-related factors. The organization of computer work should secure frequent breaks from near-work at the computer screen. The severity of vision-related problems could in field studies be quantified by asking for the persistence of symptoms.

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Risk factors for computer vision syndrome among operators of two call centres in Sao Paulo, Brazil

Cited by 3 publications

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Computer vision syndrome and ergonomic practices among undergraduate university students

Computer vision syndrome and ergonomic practices among undergraduate university students

Computer Vision Syndrome in Undergraduate and Medical Students During the COVID-19 Pandemic

Risk factors, incidence and persistence of symptoms from the eyes among professional computer users

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