People trying to kill the coronavirus with ultraviolet C germicidal lamps may risk painful eye injuries if they aren’t careful, a recent study finds. Florida researchers report at least seven cases of patients with UVC damage to the cornea, the eye’s outer layer, that left them with burning sensations and sensitivity to light after they used the lamps, according to a report published in Ocular Immunology and Inflammation. “The clear part of the surface of the eye happens to be very susceptible to the wavelength of the light from these lamps,” said Dr. Jesse Sengillo, an ophthalmologist at the Bascom Palmer Eye Institute of the University of Miami Health System.