Face Shields: Eye Protection During the Pandemic

Eye protection is an important step in our fight against COVID-19. The coronavirus primarily spreads through airborne droplets that contain the virus. Although the most common mode of transmission is through the nasal passages, the virus can also be spread through ocular transmission (eyes). When individuals touch their eyes or face with their hands, the chances of transmission are increased.

Face shields are headbands with plastic panels that cover the user’s face. Research studies have proven that eye protection such as face shields help prevent the spread of COVID-19.

Disinfecting face shields

Face shields are commonly available in two types – reusable and disposable. Reusable face shields may be reused by the same health care professional after disinfecting them. The Center for Disease Control and Prevention (CDC) has recommended a protocol for disinfecting reusable face shields. For the initial cleaning, face shields can be immersed in a neutral detergent and warm water solution, and then rinsed with clean water. Next, disinfection is to be completed per the manufacturer’s guidelines. Alternatively, chlorine-based disinfectant (0.1% chlorine solution) can be used when manufacturer guidelines are not available. Lastly, it is rinsed with clean water again and stored in a transparent plastic container with the user’s name on it.

Disposable face shields

Disinfecting reusable face shields can be an additional hassle to rigorous donning-doffing protocols. At large institutes where storing sanitized reusable face shields may not be an option, disposable face shields can be used. During work shifts, if visibly soiled or while moving in and out of patient areas disposable, disposable face shields can be cleaned with detergent and warm water solution or chlorine-based disinfectant (0.1% chlorine solution). The foam and elastic strap of a disposable face shield may be affected by the disinfectant. Hence, it is best to avoid those areas while cleaning. In a community when a surge in the number of patients occurs, disposable face shields can be quickly distributed and are affordable to the general public.    

Face shields in community settings    

Experts at the American Lung Association have suggested that face shields are to be used along with facemasks in clinical settings. Wearing a face shield decreases the number of times a person will touch their own eyes, mouth, or nose and thus, prevents transmission of the disease. Apart from frontline workers, in community settings, any person coming in close contact with other individuals needs to wear a face shield. A study has noted that as countries relax regulations regarding stay-at-home physical distancing, the use of face-shields in community settings remains highly recommended.