People who wear eyeglasses for at least 8 hours a day might be protected from catching the coronavirus, according to a new study in JAMA Ophthalmology. Chinese researchers studied 276 patients hospitalized with COVID-19. While about one-third of the population in the Hubei province normally wear eyeglasses, less than 6 percent of the COVID-19 patients wore them. In addition to providing a barrier to entry of virus particles from the air, wearing glasses might discourage us from touching our eyes, which we normally do about 10 times per hour.