Mini Review
Volume 11 Issue 6 - 2020
Coronavirus and Eye Involvement
Ximena Mira Lorenzo1*, Erika Vianey Pintor Gallardo2 and F Javier Barajas3
1Retina Physician at Retina Department at Arcos Ophthalmology Center, Queretaro, Mexico
2Medicine Student from Anahuac Medicine Faculty, Queretaro, Mexico
3WellMed Medical Group, San Antonio, Texas, USA
*Corresponding Author: Ximena Mira Lorenzo, Retina Physician at Retina Department at Arcos Ophthalmology Center, Queretaro, Mexico.
Received: March 26, 2020; Published: May 29, 2020


Coronavirus disease (COVID-19) has rapidly emerge as a global health threat. The name COVID-19 which stands for coronavirus disease 2019 was proposed by the World Health Organization. The virus was officially named a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The incubation period is from 2 to 14 days but it could be up to 24 days in rare cases. Symptoms of the infection include: fever, dry cough, fatigue, myalgia, dyspnea, anosmia, dysgeusia and diarrhea. The role of the eye transmitting COVID- 19 has been intensively discussed. Although the conjunctiva is directly exposed to extraocular pathogens and the mucosa of ocular surface and upper respiratory tract is connected by nasolacrimal duct and share same entry receptors for some respiratory viruses. The eye is rarely involved in human CoVs infection, conjunctivitis is quite rare in patients withs SARS-CoV and SARS-CoV-2 infection. Coronavirus gender that affect the eye are the following: NL63 (alphacoronavirus). The ocular implications of human coronavirus infections have not been widely studied, the virus can be present in the conjunctiva and in the tear but in the information available today have some limitations, like insufficient sample size, the tear and conjunctival secretions are limited so sample concentration might be insufficient for RT-PCR detection. However, pathogens exposed to the ocular surface might be transported to nasal and nasopharyngeal mucosa by constant tear rising through lacrimal duct and then cause respiratory tract infection. In this article we highlight the current available evidence for coronavirus infection of ocular tissue in humans even though further research has to be done.

Keywords: Coronavirus Disease (COVID-19); Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)


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Citation: Ximena Mira Lorenzo., et al. “Coronavirus and Eye Involvement”. EC Ophthalmology 11.6 (2020): 56-61.

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