Yet another surprising study on things that make a difference to the risk of covid has appeared.
This one claims, to quote the report in LiveScience:
People who wear eyeglasses may be at lower risk for catching COVID-19 than those who don't wear glasses, early research from China suggests.
The study researchers analyzed information from 276 patients at a hospital in China's Hubei province and found that only about 6% said they wore glasses for more than 8 hours a day, all of whom had myopia, or nearsightedness. That's much lower than the estimated rate of myopia in Hubei from previous research, which was 31.5%.
I'm skeptical as I am about many studies on things that affect covid. This is a small study and, even in this report, looks like it has problems.
Is there any credibility to the study? Does wearing glasses measurably protect from covid?