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Coq R, Neveu P, Plantier J, Legras R. Accommodative response and visual fatigue following a non-congruent visual task in non-asthenopic and asthenopic individuals. Ophthalmic Physiol Opt 2024; 44:925-935. [PMID: 38533853 DOI: 10.1111/opo.13304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/28/2024]
Abstract
PURPOSE Asthenopia is related to near vision activities or visual tasks that dissociate accommodation from vergence. Since the results of previous studies using objective measures to diagnose asthenopia are inconsistent, this study compared optometric tests and objective metrics of accommodation in non-asthenopic and asthenopic young adults before and after a visual fatigue task. METHODS The accommodative response was recorded objectively for 6 min at a 3.33 D accommodative demand using an autorefractor, before and after a 5-min non-congruent visual task. Accommodation was disassociated from vergence with a ±2.00 D accommodative flipper while reading at the same distance. Optometric tests and subjective evaluations of asthenopia were performed before and after the task. Twenty-six non-presbyopic adults (23.15 ± 2.56 years) were included and identified as asthenopic (n = 14) or non-asthenopic (n = 12) based on their score on the Computer Vision Syndrome Questionnaire. RESULTS A mixed ANOVA found no significant difference between the groups for objective (accommodative response) or subjective metrics (feeling of fatigue, optometric tests), although all participants reported greater visual fatigue after the task. A significant effect of time (before and after the non-congruent task) was identified for the overall sample for mean accommodative lag (+0.10 D, p = 0.01), subjective visual fatigue (+1.18, p < 0.01), negative relative accommodation (-0.20 D, p = 0.02) and near negative fusional reserve (blur: +2.46Δ, p < 0.01; break: +1.89Δ, p < 0.01; recovery: +3.34Δ, p = 0.02). CONCLUSIONS The task-induced asthenopia, measured both objectively and subjectively, was accompanied by a change in accommodative lag, greater visual fatigue and a decrease in negative relative accommodation. Conversely, near negative fusional reserves seem to adapt to the task. No significant differences were found between the two groups with respect to accommodative metrics (objective) or subjective and optometric tests.
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Affiliation(s)
- Rémi Coq
- French Armed Forces Biomedical Research Institute, Bretigny-sur-orge, France
- LuMIn, CNRS, ENS Paris-Saclay, CentraleSupelec, Université Paris-Saclay, Orsay, France
| | - Pascaline Neveu
- French Armed Forces Biomedical Research Institute, Bretigny-sur-orge, France
| | - Justin Plantier
- French Armed Forces Biomedical Research Institute, Bretigny-sur-orge, France
| | - Richard Legras
- LuMIn, CNRS, ENS Paris-Saclay, CentraleSupelec, Université Paris-Saclay, Orsay, France
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Bin Maneea MW, Alamawi HO, Almuqbil A, Abukhlaled JK, Alsuwailem G, Alabdulminaim J, Aladawi AMM, Alshangiti AY. Digital Eye Straining: Exploring Its Prevalence, Associated Factors, and Effects on the Quality of Life. Cureus 2024; 16:e59442. [PMID: 38826913 PMCID: PMC11140826 DOI: 10.7759/cureus.59442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2024] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Digital eye strain (DES) has become a pervasive issue in contemporary society due to increased reliance on electronic devices. This study aims to comprehensively explore the symptoms, severity, and associated factors of DES, considering demographic, behavioral, and health-related variables. METHODOLOGY A cross-sectional study was conducted among participants with diverse demographic backgrounds. A structured questionnaire collected data on participant characteristics, electronic device usage patterns, symptoms of DES, and its impact on various aspects of quality of life. Statistical analyses, including chi-square tests, were employed to assess associations and significance. RESULTS The majority of participants reported symptoms of DES, with eye dryness, headache, and eye redness being the most prevalent. Symptom severity varied, with age, daily device usage, adherence to the 20-20-20 rule, and studying with electronic devices demonstrating statistically significant associations. Participants diagnosed with eye diseases exhibited higher symptom severity. While disagreement was common regarding DES increasing stress, a substantial proportion acknowledged its impact on productivity and attention. CONCLUSION The current study showed that there is a significant correlation between the incidence of digital eye straining and longer screen exposure time. The findings underscore the importance of age, behavior, and ocular health in understanding and addressing DES. The results contribute to the broader discourse on digital eye health and emphasize the need for targeted interventions to alleviate the impact of DES on daily life.
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Affiliation(s)
| | - Halah O Alamawi
- College of Medicine, King Abdullah bin Abdulaziz University Hospital, Riyadh, SAU
| | - Abdulaziz Almuqbil
- College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, SAU
| | - Jana K Abukhlaled
- College of Medicine, Princess Nourah Bint Abdul Rahman University, Riyadh, SAU
| | | | | | | | - Asmaa Y Alshangiti
- College of Medicine, Princess Nourah Bint Abdul Rahman University, Riyadh, SAU
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León-Figueroa DA, Barboza JJ, Siddiq A, Sah R, Valladares-Garrido MJ, Adhikari S, Aguirre-Milachay E, Sah S, Rodriguez-Morales AJ. Prevalence of computer vision syndrome during the COVID-19 pandemic: a systematic review and meta-analysis. BMC Public Health 2024; 24:640. [PMID: 38424562 PMCID: PMC10902934 DOI: 10.1186/s12889-024-17636-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 01/01/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Computer vision syndrome has become a significant public health problem, especially in developing countries. Therefore, this study aims to identify the prevalence of computer vision syndrome during the COVID-19 pandemic. METHODS A systematic review and meta-analysis of the literature was conducted using the databases PubMed, Scopus, Web of Science, and Embase up to February 22, 2023, using the search terms "Computer Vision Syndrome" and "COVID-19". Three authors independently performed study selection, quality assessment, and data extraction, and the Joanna Briggs Institute Meta-Analysis of Statistics Assessment and Review Instrument was used to evaluate study quality. Heterogeneity was assessed using the statistical test I2, and the R version 4.2.3 program was used for statistical analysis. RESULTS A total of 192 studies were retrieved, of which 18 were included in the final meta-analysis. The total sample included 10,337 participants from 12 countries. The combined prevalence of computer vision syndrome was 74% (95% CI: 66, 81). Subgroup analysis based on country revealed a higher prevalence of computer vision syndrome in Pakistan (99%, 95% CI: 97, 100) and a lower prevalence in Turkey (48%, 95% CI: 44, 52). In addition, subgroup analysis based on study subjects showed a prevalence of 82% (95% CI: 74, 89) for computer vision syndrome in non-students and 70% (95% CI: 60, 80) among students. CONCLUSION According to the study, 74% of the participants experienced computer vision syndrome during the COVID-19 pandemic. Given this finding, it is essential to implement preventive and therapeutic measures to reduce the risk of developing computer vision syndrome and improve the quality of life of those affected. TRIAL REGISTRATION The protocol for this systematic review and meta-analysis was registered in the international registry of systematic reviews, the International Prospective Register of Systematic Reviews (PROSPERO), with registration number CRD42022345965.
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Affiliation(s)
- Darwin A León-Figueroa
- Facultad de Medicina Humana, Universidad de San Martín de Porres, Chiclayo, 15011, Peru
- Centro de Investigación en Atención Primaria en Salud, Universidad Peruana Cayetano Heredia, Lima, 15102, Peru
| | - Joshuan J Barboza
- Unidad de Revisiones Sistemáticas y Meta-Análisis, Universidad San Ignacio de Loyola, Juan del Corral 937. El Bosque, Trujillo, Lima, Peru
| | | | - Ranjit Sah
- Department of Microbiology, Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu, 44600, Nepal
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, 411018, Maharashtra, India
- Department of Public Health Dentistry, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pune, 411018, Maharashtra, India
| | - Mario J Valladares-Garrido
- Universidad Continental, Lima, 15046, Peru.
- Oficina de Epidemiología, Hospital Regional Lambayeque, Chiclayo, 14012, Peru.
| | | | | | - Sanjit Sah
- Research Scientist, Global Consortium for Public Health and Research, Datta Meghe Institute of Higher Education and Research, Jawaharlal Nehru Medical College, Wardha, 442001, India
- SR Sanjeevani Hospital, Kalyanpur-10, Siraha, Nepal
| | - Alfonso J Rodriguez-Morales
- Master of Clinical Epidemiology and Biostatistics, Universidad Cientifica del Sur, Lima, 15067, Peru
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, 1102, Lebanon
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Tsai LH, Chen BY, Su KC, Cheng CY. The status of binocular visual functions among Taiwan high-tech industry engineers and its correlation with computer vision symptom. Sci Rep 2024; 14:826. [PMID: 38191660 PMCID: PMC10774332 DOI: 10.1038/s41598-024-51314-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 01/03/2024] [Indexed: 01/10/2024] Open
Abstract
To analyze the status of binocular visual functions, the relationship between binocular visual function and computer vision-related symptoms in the high-tech industry group. The study sample was comprised of 33 participants aged between 20 and 40 years of age. After completing basic information and the Computer Vision Symptom Scale (CVSS-17) questionnaire, the participants underwent a comprehensive examination of binocular visual function. All data were statistically analyzed with SPSS V26.0 software. The value of the binocular vision function of the Taiwan high-tech industry group was significantly different compared with the Scheiman and Morgan standard value. Study subjects were generally found to exhibit larger exophoric at distance, which in turn might lead to a lower ability to maintain binocular fusion to a single image, or recover from fusional disruption at distance. Subjects also experienced accommodation and convergence problems at near at the same time. Age, gender, and refractive errors had no significant impact on CVSS-17 scores, only the duration of computer usage showed a significant effect, particularly for internal symptom factor (ISF) dimensions. In addition, the interaction between the ISF and external symptom factor resulted in more severe visual symptoms. Long-term use of electronic devices may lead to an imbalance in binocular vision function, thereby increasing or exacerbating visual symptoms. If the use of electronic devices is an unchangeable trend, interventions in prescription, visual training or the visual design of electronic products become worthwhile topics for development.
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Affiliation(s)
- Lung-Hui Tsai
- Department of Optometry, Chung Shan Medical University, Taichung, 402, Taiwan
| | - Bo-Yu Chen
- Department of Optometry, Chung Shan Medical University, Taichung, 402, Taiwan
| | - Kuo-Chen Su
- Department of Optometry, Chung Shan Medical University, Taichung, 402, Taiwan
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung, 402, Taiwan
| | - Ching-Ying Cheng
- Department of Optometry, Chung Shan Medical University, Taichung, 402, Taiwan.
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung, 402, Taiwan.
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Ayaki M, Kuze M, Negishi K. Association of eye strain with dry eye and retinal thickness. PLoS One 2023; 18:e0293320. [PMID: 37862343 PMCID: PMC10588844 DOI: 10.1371/journal.pone.0293320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/09/2023] [Indexed: 10/22/2023] Open
Abstract
PURPOSE The purpose of this cohort study was to investigate the association between the prevalence of abnormal ocular examination results and the common visual symptoms of eye strain, blurred vision and photophobia. METHODS Consecutive first-visit outpatients with best-corrected visual acuity better than 20/30 in both eyes were enrolled and those with a history of intra-ocular lens implantation and glaucoma were excluded. Dry eye-related examinations and retinal thickness measurement were conducted. The odds ratio (OR) was calculated with logistic regression analyses of ocular data in relation to the presence of visual symptoms. RESULTS A total of 6078 patients (3920 women, mean age 49.0 ± 20.4 years) were analyzed. The prevalence of each symptom was 31.8% for eye strain, 22.5% for blurred vision and 16.0% for photophobia. A significant risk factor for eye strain was short tear break-up time (TBUT) (OR 1.88), superficial punctate keratitis (SPK) (OR 1.44), and thickness of ganglion cell complex (GCC) (OR 1.30). Risk factors for blurred vision were short TBUT (OR 1.85), SPK (OR 1.24) and GCC (OR 0.59). Risk factors for photophobia were short TBUT (OR 1.77) and SPK (OR 1.32). Schirmer test value, peripapillary nerve fiber layer thickness and full macular thickness were not associated with the tested symptoms. CONCLUSION The current study successfully identified female gender, short TBUT, and SPK as significant risk factors for eye strain, blurred vision, and photophobia with considerable ORs.
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Affiliation(s)
- Masahiko Ayaki
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Otake Eye Clinic, Kanagawa, Japan
| | | | - Kazuno Negishi
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
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Issa R, Sfeir M, Azzi V, Salameh P, Akiki M, Akel M, Hallit S, Obeid S, Malaeb D, Hallit R. Association of Computer Vision Syndrome with Depression/Anxiety among Lebanese Young Adults: The Mediating Effect of Stress. Healthcare (Basel) 2023; 11:2674. [PMID: 37830711 PMCID: PMC10572235 DOI: 10.3390/healthcare11192674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/14/2023] Open
Abstract
Computers have become indispensable in daily activities. With this excess use of electronics, computer vision syndrome (CVS), a highly prevalent condition, is associated with various symptoms. Although understanding the relationship between CVS and mental health has been reported, the impact of CVS has not been explored on more than one psychological aspect. We hypothesize that higher CVS symptoms could be associated with higher levels of anxiety and depression, mediated by higher stress. Therefore, the objective of this study was to determine the association between CVS and depression and anxiety among a sample of Lebanese young adults, along with evaluating the mediating effect of stress on these associations. Between August 2020 and April 2021, 749 participants completed an online questionnaire for this cross-sectional study. Females compared to males (Beta = 3.73) and those with CVS compared to those who did not (Beta = 3.14) were significantly associated with more anxiety, whereas having a university level of education compared to secondary or less (Beta = -3.02) was significantly associated with less anxiety. Females compared to males (Beta = 2.55) and those with CVS compared to those without (Beta = 2.61) were significantly associated with more depression, whereas being of an older age (Beta = -0.18) was significantly associated with less depression. Stress partially mediated the association between CVS and anxiety and between CVS and depression. More CVS was significantly associated with more stress (Beta = 3.05). Higher stress was significantly associated with more anxiety (Beta = 0.70) and depression (Beta = 0.71), whereas more CVS was significantly and directly associated with more anxiety (Beta = 3.14) and depression (Beta = 2.61). This study is the first worldwide to evaluate an association between CVS and mental health. Our results serve as a starting point for healthcare providers (psychiatrists and psychologists, most importantly) to look deeper into CVS when looking for reasons behind mental health issues. Further studies are warranted to confirm our results and look for more factors and mediators in such associations.
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Affiliation(s)
- Rita Issa
- School of Medicine and Medical Sciences, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon; (R.I.); (V.A.); (S.H.); (R.H.)
| | - Michel Sfeir
- Faculty of Social and Political Sciences (SSP), Institute of Psychology (IP), University of Lausanne, 1015 Lausanne, Switzerland;
| | - Vanessa Azzi
- School of Medicine and Medical Sciences, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon; (R.I.); (V.A.); (S.H.); (R.H.)
| | - Pascale Salameh
- School of Medicine, Lebanese American University, Byblos 5053, Lebanon;
- INSPECT-LB (Institut National de Santé Publique, d’Épidémiologie Clinique et de Toxicologie-Liban), Beirut P.O. Box 12109, Lebanon;
- Medical School, University of Nicosia, 2417 Nicosia, Cyprus
- Faculty of Pharmacy, Lebanese University, Hadat 1103, Lebanon
| | - Maria Akiki
- Department of Internal Medicine, Saint Michael’s Medical Center, Newark, NJ 07102, USA;
| | - Marwan Akel
- INSPECT-LB (Institut National de Santé Publique, d’Épidémiologie Clinique et de Toxicologie-Liban), Beirut P.O. Box 12109, Lebanon;
- School of Pharmacy, Lebanese International University, Beirut P.O. Box 146404, Lebanon
| | - Souheil Hallit
- School of Medicine and Medical Sciences, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon; (R.I.); (V.A.); (S.H.); (R.H.)
- Applied Science Research Center, Applied Science Private University, Amman 11931, Jordan
- Research Department, Psychiatric Hospital of the Cross, Jal Eddib P.O. Box 60096, Lebanon
| | - Sahar Obeid
- Social and Education Sciences Department, School of Arts and Sciences, Lebanese American University, Jbeil P.O. Box 13-5053, Lebanon;
| | - Diana Malaeb
- College of Pharmacy, Gulf Medical University, Ajman P.O. Box 4184, United Arab Emirates
| | - Rabih Hallit
- School of Medicine and Medical Sciences, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon; (R.I.); (V.A.); (S.H.); (R.H.)
- Department of Infectious Disease, Notre-Dame des Secours University Hospital, Byblos Postal Code 3, Lebanon
- Department of Infectious Disease, Bellevue Medical Center, Mansourieh P.O. Box 295, Lebanon
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