An observational study conducted in China suggests that people who wear eyeglasses are shielded against COVID-19, up to a certain degree. It should be noted that the study has certain limitations as it was an observational study, conducted on a small group. The study has been published in JAMA Ophthalmology. To conduct the research, the authors of the study from Suizhou Zengdu Hospital in Suizhou, China, observed 276 participants in Hubei and looked for the link between wearing eyeglasses and some protection against COVID-19.
The participants were asked how many of them wore glasses, how long did they wear it and why did they wear them. The authors found that 30 participants (11 per cent) wore glasses but only 16 (5.8 per cent) of them wore the glasses for more than eight hours of the day as they had myopia. The researchers compared these findings to an earlier study which found that 31.5 per cent of the people in Hubei district had myopia and all of them wore eyeglasses.