Ask Dr. Laughlin: "Can coronavirus infect through the eyes?"

The coronavirus (Covid-19) is a highly-contagious respiratory virus that is most commonly transmitted by the droplets of saliva and mucus that are generated by coughs, sneezes, talking and singing.  These infected droplets can then enter an uninfected person’s mouth or nose, where Covid-19 can attach to the cells of the respiratory tract and initiate infection.  Covid-19 can also spread when an uninfected person touches a surface on which Covid-19 is present and then touches their mouth, nose or face.

What about the eyes?  Both the American Association of Ophthalmologists and a group of researchers at Johns Hopkins University believe that Covid-19 can enter the body through the conjunctiva, the moist cells covering the eye.  Once Covid-19 has entered the eye, it may cause the local inflammation/infection called conjunctivitis, or “pink eye,” and/or spread via the tear ducts to the nose and mouth, where more serious infections can occur.  While spread through the eyes is the least likely means of transmission, this is still a possible way to catch Covid-19.

Experts recommend that, in addition to masks gowns, and gloves, the personal protective equipment, or PPE, used by healthcare workers when treating potential Covid-19 infections should include eye protection such as face shields and goggles that protect the front and sides of the eyes.  Wearing ordinary glasses is not enough.

With Covid-19, you cannot be too careful.