ABSTRACT
Background / Introduction: The novel coronavirus disease pandemic (COVID-19) has affected the world entirely. The government of Saudi Arabia adopted varieties of measures to mitigate the spread of the novel virus;one of the measures taken was to close all schools and universities across the kingdom and promoting online education. The aim of our study is to determine the prevalence of digital eye strain, the associated risk factors and the most prevalent associated symptoms among under graduated medical students at Majmaah University in Saudi Arabia. Objective(s): to study the prevalence of digital eye strain among undergraduate students in the college of medicine, and to identify the risk factors associated with digital eye strain, and to identify the preventive measures taken to avoid eye strain symptoms related to digital device use. Methodology: Observational descriptive study (Cross-sectional study) to evaluate Digital Eye Strain among undergraduate students in the college of medicine at Majmaah University, to determine the prevalence of DES, associated risk factors, and measures taken to relieve the symptoms. Data will be analyzed by researchers using SPSS version 20. Result(s): Our study showed that digital eye strain was positively associated in female gender more than male, also it was positively associated in people who have preexisting eye conditions like myopia. Regarding the incidence of digital eyestrain with the intensity, it has been shown that most of our participants had mild strain eyestrain (41%). Moreover, it was observed that headache was the most common complaints by our participants. Using the digital devices for more than 4 h/day, and takings a breaks during using the devices in frequency 60 minutes or more and not using antiglare screen were significant risk factors linked to sys strain symptoms (P<0.001, P=0.02, P=0.04) respectively .In regard the preventive measure taking to reduce the digital eye strain our study found that there was no significant association between practicing the rule of 20-20-20 and the prevalence of digital eye strain among participant using eye drops was significantly associated with low incidence of digital eye strain (P=0.01). Conclusion(s): In conclusion, digital eye strain is an emergent public health problem that is proportional to the duration of exposure to digital screens. It has also been associated with multiple digital devices among medical students most commonly iPads. Digital devices are mandatory in every institution and prevention of digital eye strains with the consequences must be included in the curriculum. Copyright © 2022 Ubiquity Press. All rights reserved.
ABSTRACT
Introduction: In recent years, the use of computers, laptops, tablets and smartphones has experienced a constant in-crease, and even more so, the health emergency caused by COVID-19 has caused a significant increase in the amount of connection time to said devices. because the teaching mo-dality changed from face-to-face to virtual. Objective: To determine the prevalence and sociodemo-graphic variables associated with computer visual syndrome (VIS) in Peruvian university students during the COVID-19 health emergency. Materials and methods: The research had a quantitative approach;the design was non-experimental and the tran-sectional descriptive type. The sample was made up of 215 students from the professional career of Education to whom the Computer Syndrome Questionnaire (SVI-Q) was applied, an instrument with acceptable levels of reliability and validity. Subsequently, the responses were systematized and ana-lyzed using the SPSS® software. Results: It was determined that there is a high prevalence of SVI and that some sociodemographic variables such as gender, age group, time of exposure to digital devices, as well as having a pre-existing eye disease were significantly associated with said prevalence (p<0.05). Conclusions: It is necessary to promote the application of preventive strategies, such as the 20-20-20 rule, and to im-prove ergonomic conditions, such as the use of adequate seats, anti-glare screens and brightness adjustment to re-duce the prevalence. and symptoms associated with IVS.
ABSTRACT
Home-based workspaces have considerably increased all over the world. Besides, the recent outbreak of the COVID-19 disease forced many people to work from their homes. However, existing residential apartment buildings (ERABs) had been designed for accommodation but not for office works. Low-quality visual environments in ERABs, which have no shading controls on their windows, are evident in tropical climates with extremely high solar radiation. Thus, interior retrofit is significant to provide visual comfort for users in ERABs with low flexibility for modification of their facades. Different interior design variables were simulated by the Radiance-based program to analyse daylighting in a closed-plan room. Before the simulation experiments, field measurement of daylight was performed under a tropical sky to validate the results, and the findings revealed significant Pearson correlations. This paper showed that ERABs are confronting extremely high indoor daylight quantity, up to 10,228 lx, and low quality with intolerable glare. An adjustable model of internal shading, including an integrated Venetian blind with a horizontal light shelf and the window films, was proposed to improve quantitative and qualitative performances of daylighting in tropical regions. This dynamic model could be adjusted to various positions based on daylighting conditions in the buildings. By comparing the simulation results of this model with the base model, indoor illuminance levels could successfully reduce from 32% to 86%;Illuminance Uniformity Ratio (IUR) and Target Daylight Illuminance (TDI) significantly improved up to 180% and 300%, respectively;Daylight Glare Probability (DGP) and CIE Glare Index (CGI) changed from intolerable to imperceptible status. Accordingly, the proposed model can considerably improve daylight quantity and quality in the test room during different times. This study concludes that the dynamic model of internal shadings could provide efficient daylighting, by decreasing the extremely high indoor illuminance and glare in the ERABs in tropical climates. © 2021 WITPress. All rights reserved.