Daily Wearers Of Eyeglasses Less Susceptible To COVID-19: JA
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Coronavirus disease 2019 (COVID-19), is a highly infectious disease. COVID-19 has been proven to be transmitted mainly through droplets and contact. The eye is also considered an important route of infection. Since the outbreak of COVID-19 the researchers observed that few patients with eyeglasses were admitted in the hospital ward. Researchers conducted a study to establish the association between the daily wearing of eyeglasses and the susceptibility to COVID-19.

A total of 276 patients with COVID-19 were enrolled in the study. The median age was 51 years; 155 patients were male and 121 were female. Most patients with COVID-19 were moderately ill, with 14 severely ill. Thirty patients with COVID-19 wore eyeglasses, including 16 cases of myopia and 14 cases of presbyopia. None of the patients in this study wore contact lenses or underwent refractive surgery.

All 16 patients with COVID-19 who wore glasses for more than 8 hours per day had myopia, accounting for 5.8% and the median age was 33 years. Their symptoms, underlying disease, and COVID-19 severity were not significantly different from those of other patients.

The main finding of the study was that patients with COVID-19 who wear eyeglasses for an extended period every day were relatively uncommon, which could be preliminary evidence that daily wearers of eyeglasses are less susceptible to COVID-19. Considering the prevalence of COVID-19, conducting a sample survey among the local population would have been difficult.

Studies have shown that normal people will involuntarily touch their eyes about 10 times per hour. Eyes usually lack protection, and an abundance of the SARS-CoV-2 receptor angiotensin converting enzyme 2 has been found on the ocular surface, through which SARS-CoV-2 can enter the human body.

SARS-CoV-2 may also be transported to the nasal and nasopharyngeal mucosa through continuous tear irrigation of the lacrimal duct, causing respiratory infection. According to available statistics, nearly 1% to 12% of patients with COVID-19 have ocular manifestations, SARS-CoV-2 was detected in tears or the conjunctival sacs of patients with COVID-19, and some ophthalmologists were reported to be infected during routine treatment. Therefore, the eyes are considered an important channel for SARS-CoV-2 to enter the human body.

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