**1. Introduction**

COVID-19 is caused by SARS-CoV2 an enveloped, single-stranded RNA virus of the *Coronaviridae* family that emerged in China in 2019 with rapid worldwide spread becoming a pandemic within months. SARS-CoV-2 is a highly infectious virus, transmitted by exposure to contaminated respiratory fluids.

Laboratory diagnosis of COVID is usually done by detecting viral fragments in the upper respiratory tract, but in some patients, these fragments can be detected in the tear that confirms the ocular route as a possible route of viral inoculation. It has even been found that detection of viral fragments on the ocular surface can occur earlier than systemic symptoms (D2 of infection) and remain up to day 29, even with a negative nasopharyngeal swab.
