scholarly journals Computer vision syndrome: a study of knowledge and practices in university students

2013 ◽  
Vol 5 (2) ◽  
pp. 161-168 ◽  
Author(s):  
S Chandrasekhara Reddy ◽  
CK Low ◽  
YP Lim ◽  
LL Low ◽  
F Mardina ◽  
...  
Keyword(s):  
Computer Vision ◽  
University Students ◽  
Computer Use ◽  
Preventive Measures ◽  
Study Data ◽  
Survey Study ◽  
Cross Sectional ◽  
Computer Vision Syndrome ◽  
Eye Symptoms ◽  
Continuous Use

Introduction: Computer vision syndrome (CVS) is a condition in which a person experiences one or more of eye symptoms as a result of prolonged working on a computer. Objectives: To determine the prevalence of CVS symptoms, knowledge and practices of computer use in students studying in different universities in Malaysia, and to evaluate the association of various factors in computer use with the occurrence of symptoms. Material and methods: In a cross sectional, questionnaire survey study, data was collected in college students regarding the demography, use of spectacles, duration of daily continuous use of computer, symptoms of CVS, preventive measures taken to reduce the symptoms, use of radiation filter on the computer screen, and lighting in the room. Results: A total of 795 students, aged between 18 and 25 years, from five universities in Malaysia were surveyed. The prevalence of symptoms of CVS (one or more) was found to be 89.9%; the most disturbing symptom was headache (19.7%) followed by eye strain (16.4%). Students who used computer for more than 2 hours per day experienced significantly more symptoms of CVS (p=0.0001). Looking at far objects in-between the work was significantly (p=0.0008) associated with less frequency of CVS symptoms. The use of radiation filter on the screen (p=0.6777) did not help in reducing the CVS symptoms. Conclusion: Ninety percent of university students in Malaysia experienced symptoms related to CVS, which was seen more often in those who used computer for more than 2 hours continuously per day. Nepal J Ophthalmol 2013; 5(10): 161-168 DOI: http://dx.doi.org/10.3126/nepjoph.v5i2.8707

scholarly journals COMPUTER VISION SYNDROME: PREVALENCE AND ASSOCIATED RISK FACTORS AMONG UNDERGRADUATES IN A TERTIARY INSTITUTION IN NORTH WESTERN NIGERIA

2021 ◽  
Vol 15 (1) ◽  
pp. 1-8
Author(s):  
Nwankwo B ◽  
◽  
Mumueh KP ◽  
Olorukooba AA ◽  
Usman NO
Keyword(s):  
Risk Factors ◽  
Computer Vision ◽  
Computer Use ◽  
P Value ◽  
Tertiary Institution ◽  
Blurred Vision ◽  
Cross Sectional ◽  
Computer Vision Syndrome ◽  
Increased Risk ◽  
Associated Risk Factors

Background: Computers and other visual display devices have become essential in the present era and have led to a rise in computer-related health problems. Using computers in homes, universities and other institutions has increased output greatly but has also led to an increased risk of developing Computer vision syndrome (CVS). Objectives: To determine the prevalence and risk factors associated with computer vision syndrome among undergraduates. Methodology: A cross-sectional study was conducted among153 respondents who were selected using a multi-stage sampling technique. A pretested, structured, interviewer-administered questionnaire was used to collect data. SPSS version 23 was used to analyze the data. A Chi-square test was used to determine the relationship between CVS and associated risk factors at a P-value of <0.05. Results: The mean age of respondents was 22.4 ± 3.4 years. The prevalence of CVS in this study was 83 (54.3%). The common symptoms experienced among the respondents were headache (51, 61.4%), eye strain (48, 57.8%) and blurred vision (42, 50.6%). The risk factors significantly associated with CVS in this study were duration of computer use, hours of computer use per day, level of a computer screen and taking breaks during computer use. Conclusion: About half of the students in this study had at least one symptom of CVS. Therefore, awareness of CVS should be created by the institution during which students would be educated on CVS and its prevention.

scholarly journals Adoption of Preventive Measures During the Very Early Phase of the COVID-19 Outbreak in China: National Cross-sectional Survey Study (Preprint)

2020 ◽  
Author(s):  
Joseph Lau ◽  
Yanqiu Yu ◽  
Meiqi Xin ◽  
Rui She ◽  
Sitong Luo ◽  
...  
Keyword(s):  
University Students ◽  
Early Phase ◽  
Preventive Measures ◽  
Multiple Logistic Regression Analysis ◽  
Face Mask ◽  
Cognitive Factors ◽  
Survey Study ◽  
Structural Factors ◽  
Cross Sectional Survey ◽  
Cross Sectional

BACKGROUND The outbreak of COVID-19 in China occurred around the Chinese New Year (January 25, 2020), and infections decreased continuously afterward. General adoption of preventive measures during the Chinese New Year period was crucial in driving the decline. It is imperative to investigate preventive behaviors among Chinese university students, who could have spread COVID-19 when travelling home during the Chinese New Year break. OBJECTIVE In this study, we investigated levels of COVID-19–related personal measures undertaken during the 7-day Chinese New Year holidays by university students in China, and associated COVID-19–related cognitive factors. METHODS A cross-sectional anonymous web-based survey was conducted during the period from February 1 to 10, 2020. Data from 23,863 students (from 26 universities, 16 cities, 13 provincial-level regions) about personal measures (frequent face-mask wearing, frequent handwashing, frequent home staying, and an indicator that combined the 3 behaviors) were analyzed (overall response rate 70%). Multilevel multiple logistic regression analysis was performed. RESULTS Only 28.0% of respondents (6684/23,863) had left home for &gt;4 hours, and 49.3% (11,757/23,863) had never left home during the 7-day Chinese New Year period; 79.7% (19,026/23,863) always used face-masks in public areas. The frequency of handwashing with soap was relatively low (6424/23,863, 26.9% for &gt;5 times/day); 72.4% (17,282/23,863) had frequently undertaken ≥2 of these 3 measures. COVID-19–related cognitive factors (perceptions on modes of transmission, permanent bodily damage, efficacy of personal or governmental preventive measures, nonavailability of vaccines and treatments) were significantly associated with preventive measures. Associations with frequent face-mask wearing were stronger than those with frequent home staying. CONCLUSIONS University students had strong behavioral responses during the very early phase of the COVID-19 outbreak. Levels of personal prevention, especially frequent home staying and face-mask wearing, were high. Health promotion may modify cognitive factors. Some structural factors (eg, social distancing policy) might explain why the frequency of home staying was higher than that of handwashing. Other populations might have behaved similarly; however, such data were not available to us. CLINICALTRIAL

scholarly journals Awareness and prevalence on computer vision syndrome among medical students: A cross-sectional study

2021 ◽  
Vol 12 (9) ◽  
pp. 44-48
Author(s):  
Sughandha Garg ◽  
Debayan Mallik ◽  
Arun Kumar ◽  
Rajasri Chunder ◽  
Ajay Bhagoliwal
Keyword(s):  
Computer Vision ◽  
Medical Students ◽  
Computer Use ◽  
Significant Proportion ◽  
Cross Sectional Study ◽  
Computer Work ◽  
Sectional Study ◽  
College Hospital ◽  
Cross Sectional ◽  
Computer Vision Syndrome

Background: Computers have significantly impacted cognitive, social, physical and various other aspects of the modern daily lives of computer users, especially among internet users. Our life is inseparable from the internet, e.g., chatting, online shopping, gaming, video conferencing, and emailing. In the modern day, nearly every job is done sitting in front of a computer. Majority of the day is spent on the computer either working or for recreational purposes. Consequently, the effects of computer use on eyes and vision has increased too. This study will review the factors relating to eye and vision problems amongst students and its association with computer work and provide recommendations for preventing or reducing their development. Aims and Objectives: The aim of the current study was to estimate the prevalence of computer vision syndrome, its knowledge and application among medical students. Materials and Methods: This was a cross-sectional study, which was carried out amongst the MBBS students (1st, 2nd and 3rd year) of Rama Medical College Hospital and Research Center, Kanpur, India. The data was collected between January 2017 to March 2017. Students who gave their consent were taken up for the study. A pretested, semi-structured questionnaire was used to collect the data. Results: A total of 214 medical students participated and majority of them were below 22 years of age. The prevalence of Computer Vision Syndrome was found to be 83% [95% CI = 67.9% - 91.6%]. More than 70% students spend up to 4 hours in front of computer. Roughly 40% knowledge of Computer Vision Syndrome, but only 10% took any measures to prevent the disease. And those who had symptoms experience them within 2-3 hours of computer use. Majority of them complained of having watery eyes and blurred vision. Conclusion: A significant proportion of students do manifests Computer Vision Syndrome and denotes that the health of the people working on the computers should be emphasized as a field of concern in public health. These are young kids and having this syndrome so early in life will have a detrimental effect on their health in future. Hence the stakeholders involved, needs to be sensitized regarding the importance of the regular eye and health check-ups and proper rest to the eyes. Further research is recommended to know the depth of the problem as it has the potential to become a modern-day pandemic.

scholarly journals COMPUTER VISION SYNDROME: PREVALENCE AND ASSOCIATED RISK FACTORS AMONG UNDERGRADUATES IN A TERTIARY INSTITUTION IN NORTH WESTERN NIGERIA

2021 ◽  
Vol 15 (1) ◽  
pp. 19-26
Author(s):  
Nwankwo B ◽  
◽  
Mumueh KP ◽  
Olorukooba AA ◽  
Usman NO ◽  
...  
Keyword(s):  
Risk Factors ◽  
Computer Vision ◽  
Computer Use ◽  
P Value ◽  
Tertiary Institution ◽  
Blurred Vision ◽  
Cross Sectional ◽  
Computer Vision Syndrome ◽  
Increased Risk ◽  
Associated Risk Factors

Background: Computers and other visual display devices have become essential in the present era and have led to a rise in computer-related health problems. Using computers in homes, universities and other institutions has increased output greatly but has also led to an increased risk of developing Computer vision syndrome (CVS). Objectives: To determine the prevalence and risk factors associated with computer vision syndrome among undergraduates. Methodology: A cross-sectional study was conducted among153 respondents who were selected using a multi-stage sampling technique. A pretested, structured, interviewer-administered questionnaire was used to collect data. SPSS version 23 was used to analyze the data. A Chi-square test was used to determine the relationship between CVS and associated risk factors at a P-value of <0.05. Results: The mean age of respondents was 22.4 ± 3.4 years. The prevalence of CVS in this study was 83 (54.3%). The common symptoms experienced among the respondents were headache (51, 61.4%), eye strain (48, 57.8%) and blurred vision (42, 50.6%). The risk factors significantly associated with CVS in this study were duration of computer use, hours of computer use per day, level of a computer screen and taking breaks during computer use. Conclusion: About half of the students in this study had at least one symptom of CVS. Therefore, awareness of CVS should be created by the institution during which students would be educated on CVS and its prevention.

scholarly journals Computer Vision Syndrome During SARS-CoV-2 Outbreak in University Students: A Comparison Between Online Courses and Classroom Lectures

2021 ◽  
Vol 9 ◽  
Author(s):  
Lixiang Wang ◽  
Xin Wei ◽  
Yingping Deng
Keyword(s):  
Computer Vision ◽  
Foreign Body ◽  
University Students ◽  
Screen Time ◽  
Chinese Students ◽  
Survey Study ◽  
Cross Sectional Survey ◽  
Positive Correlation ◽  
Computer Vision Syndrome ◽  
Spearman’S Correlation

Purpose: To compare the prevalence of computer vision syndrome in university students of different teaching modes during the SARS-CoV-2 outbreak period.Methods: A cross-sectional survey study using the validated Computer Vision Syndrome Questionnaire in Chinese medical students of Sichuan University who took classroom lectures and the same-grade foreign students from a Bachelor of Medicine and Bachelor of Surgery (MBBS) program who took online lectures with similar schedules.Results: A total of 137 responses from 63 Chinese students and 74 MBBS students were obtained. The highest frequency of digital screen time was 7-9 h (43.24%, 32/74) for MBBS students and 2-4 h (46.03%, 29/63) for Chinese students. The prevalence of computer vision syndrome among Chinese students and MBBS students were 50.79% and 74.32%, respectively (P = 0.004). The average numbers of reported symptoms were 5.00 ± 2.17 in Chinese students and 5.91 ± 1.90 in MBBS students (P = 0.01). The three most highly reported symptoms were “heavy eyelids” (53.97%), “dryness” (50.79%), and “feeling of a foreign body” (46.03%) in Chinese students and “dryness” (72.97%), “feeling of a foreign body” (62.16%), and “heavy eyelids” (58.11%) in MBBS students. The sum grades of computer vision syndrome had a moderate positive correlation with screen time (Spearman's correlation coefficient = 0.386, P &lt; 0.001). The grades of symptoms of “feeling of a foreign body,” “heavy eyelids,” and “dryness” showed a weak positive correlation with screen time (Spearman's correlation coefficients were 0.220, 0.205, and 0.230, respectively).Conclusion: Online study may contribute to the prevalence of computer vision syndrome among university students.

scholarly journals Computer Vision Syndrome among Patients Attending the Outpatient Department of Ophthalmology in a Tertiary Care Centre: A Descriptive Cross-sectional Study

2020 ◽  
Vol 58 (230) ◽  
Author(s):  
Priyanka Shrestha ◽  
Pranil Man Singh Pradhan ◽  
Om Krishna Malla
Keyword(s):  
Computer Vision ◽  
Computer Use ◽  
Tertiary Care ◽  
Cross Sectional Study ◽  
Computer Users ◽  
Sectional Study ◽  
Cross Sectional ◽  
Computer Vision Syndrome ◽  
Department Of Ophthalmology

Introduction: Computers and digital electronic devices have become an integral part of life. These devices have adverse effects and nowadays are considered leading occupational hazards. Computer vision syndrome comprises of all the ocular, visual and musculoskeletal symptoms secondary to long term computer use. The objective of this study is to determine the prevalence of computer vision syndrome among people attending the outpatient department of ophthalmology in the tertiary care center in Nepal. Methods: A descriptive cross-sectional study was done among 70 patients in a tertiary care hospital from January 2017 to June 2017 after obtaining ethical approval from the institutional review committee (Ref: 12042017). Convenient sampling method was applied and the point estimate at 95% confidence interval was calculated along with frequency and proportion for binary data. Patients using computers for more than one hour were included in the study. All data were entered in Microsoft Excel and analyzed using statistical package for social sciences version 20. Results: Among 70 patients, 67 (95.7%) (87.9-99.1 at 95% confidence interval) had one or more symptoms on computer use. The mean duration of computer use was 7.5±5.4 years and average hours of computer use among computer users were 6.9±3 hours. The most common symptom among computer users was headache seen in 46 (62.2%) patients. Conclusions: Our study showed that a significant number of people using a computer develop one or more symptoms on the long-term use of the computer. Therefore, it is very important to create awareness regarding computer vision syndrome and methods to prevent it among computer users.

Accommodative and binocular disorders in preteens with computer vision syndrome: a cross‐sectional study

2020 ◽  
Author(s):  
Concepción De‐Hita‐Cantalejo ◽  
Ángel García‐Pérez ◽  
José‐María Sánchez‐González ◽  
Raúl Capote‐Puente ◽  
María Carmen Sánchez‐González
Keyword(s):  
Computer Vision ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Computer Vision Syndrome

scholarly journals Computer Vision Syndrome Prevalence and Ocular Sequelae among Medical Students: A University-Wide Study on a Marginalized Visual Security Issue

2021 ◽  
Vol 15 (1) ◽  
pp. 156-170
Author(s):  
Mohammed Iqbal ◽  
Hosam Elzembely ◽  
Ahmed Elmassry ◽  
Mervat Elgharieb ◽  
Ahmed Assaf ◽  
...  
Keyword(s):  
Computer Vision ◽  
Medical Students ◽  
Anterior Segment ◽  
Multivariate Logistic Regression Analysis ◽  
Risk Groups ◽  
Security Issue ◽  
Cross Sectional ◽  
Ophthalmic Examination ◽  
Frequent Use ◽  
Computer Vision Syndrome

Introduction: This study aimed to discover and document the potential of visual and ocular sequelae of computer vision syndrome (CVS) among medical students. Methods: This cross-sectional case-control study was conducted on medical students (n=4030) of five universities in Egypt. All students completed a specially designed and validated CVS questionnaire survey (CVS-F3). Students with ≥5 CVS symptoms constituted a risk group (n=352), while students with 1-4 CVS symptoms constituted a low-symptoms group (n=3067). Students from the control and risk groups were examined using objective methods, such as visual acuity, subjective refraction, dry eye disease tests, and anterior segment and fundus examinations. Students who complained of visual blur underwent multifocal electroretinography mfERG examinations (mfERG group). Results: The CVS-F3 indicated that 84.8% of students had complaints that might be related to CVS, however, our ophthalmic examination group revealed only a 56% CVS prevalence rate. The most common single screen type used by 70.4% of students was the smartphone, and the most common complaint was headache (50.2%). Multivariate logistic regression analysis revealed that CVS was significantly associated with increased screen-hours, including >2 screen-hours daily (odds ratio [OR], 2.48; P<0.0001), >2 screen-hours at night (OR, 1.79; P=0.003), and ≥3 screen-years (OR, 1.69; P=0.006). In the mfERG group, 37% demonstrated reduced amplitudes of mfERG rings and quadrants, indicating reduced foveal responses. Conclusion: CVS-questionnaires overestimate the true CVS prevalence and sequelae, which could be accurately detected by objective ophthalmic examination. Smartphones primarily caused CVS among students, with CVS severity increasing in correlation with shorter eye-to-screen distance and frequent use. Contact lens wearing doubled the risk of CVS development and augmented its severity. CVS might affect macular integrity with screen-induced foveal dysfunction. Clinical Trials Registration: PACTR201811618954630.

scholarly journals A cross sectional study to assess the prevalence and associated factors of computer vision syndrome among engineering students of Hyderabad, Telangana

2018 ◽  
Vol 6 (1) ◽  
pp. 308
Author(s):  
Anupama Pulla ◽  
Asma . ◽  
Nanduri Samyuktha ◽  
Soumya Kasubagula ◽  
Aishwarya Kataih ◽  
...  
Keyword(s):  
Computer Vision ◽  
Engineering Students ◽  
Prolonged Exposure ◽  
Significant Proportion ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Computer Vision Syndrome ◽  
Study Population ◽  
Near Work

Background: Computer vision syndrome is a complex of eye and vision problems related to near work which are experienced due to prolonged computer use. Computers demand near work, for longer duration which increases discomfort of eye and prolonged exposure to the discomfort leads to a cascade of symptoms that can be referred as computer vision syndrome. The aims and objectives of the study were to determine the prevalence of computer vision syndrome among engineering students of Hyderabad, Telangana and to determine the factors related to computer vision syndrome among study population.Methods: A cross sectional study was carried out from March to June 2017 among students of an engineering college in Hyderabad, Telangana. A convenient sample of 300 students was taken and a predesigned, pre tested questionnaire was used to obtain information.Results: Majority of study population were males (56.3%). Around 75.1% of study population were using all the electronic gadgets like computers, laptops and smartphones. The prevalence of computer vision syndrome was found to be 60.3%. Around 46.7% of study population viewed the screen from a distance of 22-40 centimeters.Conclusions: As students pursuing engineering stream are the future IT and Computer software engineers, preventive strategies adopted by them will significantly decrease the burden of computer vision syndrome and improve productivity. In this study a significant proportion of the engineering students were found to be having vision problems, which emphasizes the need to adopt preventive measures to avoid computer vision syndrome. 

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