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Purpose: To assess the connection between the prevalence of asthenopia and the use of electronic devices in Jazan, Saudi Arabia, during the COVID-19 pandemic. Patients and Methods: Asthenopia prevalence and its connection to electronic screens during the COVID-19 pandemic were evaluated in an analytical, cross-sectional investigation among the Jazan population. The sample population included 784 participants. Due to the COVID-19 pandemic, a pre-tested, organized, and self-administered questionnaire was used as the study method. Social media invitations were used to contact the sample group. Results: Of the 784 participants, 587 (74.96%) had asthenopia symptoms after using digital devices at the end of the day. A total of 56.30% used digital gadgets for > 6 hours each day, whereas 55.36% spent <2 hours per day reading papers or books or writing. Daily usage of digital gadgets did not significantly differ from asthenopia (p=0.46), as well as reading papers, books, or writing and asthenopia (p=0.098). A total of 45.92% of the study population maintained digital devices/books at a distance <25 cm, which was significantly associated with symptoms of asthenopia (p=0.048). Furthermore, 90.10% of the sample population used laptops, cellphones, and iPads before going to bed or after turning off lights. A total of 63.52% preferred using devices while lying in bed. There was no positive link between asthenopia symptoms and cellphone usage at bedtime or after turning off lights (p=0.028). Conclusion: Digital technology is used by people of all ages for a wide range of daily activities, including education, employment, business, and recreation. We concluded that this group had a high prevalence of asthenopia, especially during the COVID-19 pandemic. The high frequency of asthenopia emphasizes the significance of conducting public awareness campaigns concerning asthenopia symptoms and prevention methods.
RESUMO
PURPOSE: Refractive errors (REs) are common and continue to increase globally, particularly myopia. Uncorrected REs are the second leading cause of preventable blindness and the most common cause of visual impairment. The main objective of this study is to assess the prevalence of REs and to investigate its associated risk factors among medical students of the Jazan region, Saudi Arabia. METHODS: An observational analytical cross-sectional study was conducted among a random sample of 447 medical students at Jazan University. Eye examination was conducted using an autorefractor test (Huvitz HRK-8000A Autorefractor Keratometer) to measure spherical refraction (emmetropia, myopia, and hyperopia) and cylindrical refraction (astigmatism). Factors associated with myopia and hyperopia were evaluated using logistic regression models. RESULTS: The overall prevalence of REs was 48.8% (95% confidence interval [CI] [44.2, 53.4]). The prevalence of REs among female medical students was 55.1% (95% CI [48.6, 61.5]), which was significantly higher than that among males (42.3%, 95% CI [36.0, 48.9]), with a P = 0.007. Of the 447 medical students examined, approximately one-third (33.8%) had myopia, 10.5% had astigmatism, and only 10.5% had hyperopia. The results of logistic regression indicated that females were 52% more myopic than males (odds ratios [OR] = 1.52, 95% CI [1.04, 2.22]), while participants with both parents having a history of REs were twofold more myopic than students with no family history of REs (OR = 2.01, 95% CI [1.2, 3.4]). A history of blurred vision also increases the risk of myopia by seven times (OR = 7.2, 95% CI [6.4, 11.3]). CONCLUSION: RE among medical students is a problem. Thus, it needs to be assessed carefully before students choose a specialty that may need very good near and far vision for postgraduate study.