ACE2 and COVID-19: COVID-19 was found to have a similar receptor-binding motif as SARS-COV, which allows the virus to infect the host cells via angiotensin-converting enzyme 2 (ACE2).8 This receptor is part of the renin-angiotensin system expressed in endothelial cells, and preliminary reports suggest the evidence of ACE2 expression in corneal and conjunctival cells, and maybe more in the inner epithelial layers of the eye, particularly within fibroblasts and dendritic cells.9