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Updated: Nov 18, 2025

Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19
Published on: May 25, 2022
Eyes on coronavirus
Yan-Ping Li1, Ya Ma2, Ningli Wang2
1Laboratory for Stem Cell & Retinal Regeneration, The Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China.
Abstract:
Recently, coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 has spread around the world and is receiving worldwide attention. Approximately 20% of infected patients are suffering from severe disease of multiple systems and in danger of death, while the ocular complications of SARS-CoV-2-infected patients have not been reported generally. Herein, we focus on two major receptors of SARS-CoV-2, ACE2 and CD147 (BSG), in human ocular cells, and interpret the potential roles of coronaviruses in human ocular tissues and diseases.
Insights
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may impact eye health. This study explores the role of ACE2 and CD147 receptors in human ocular cells, investigating potential coronavirus effects on eye tissues and diseases.
Area of Science:
- Ophthalmology
- Virology
- Molecular Biology
Background:
- Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, is a global pandemic.
- Severe cases affect multiple systems, but ocular complications are not widely reported.
- SARS-CoV-2 utilizes specific receptors for cell entry.
Purpose of the Study:
- To investigate the presence and role of SARS-CoV-2 receptors in human ocular cells.
- To understand the potential mechanisms of coronavirus involvement in ocular tissues and diseases.
Main Methods:
- Analysis of ACE2 and CD147 (BSG) receptor expression in human ocular cells.
- Literature review on coronavirus interactions with ocular tissues.
Main Results:
- ACE2 and CD147 receptors are present in human ocular cells.
- These receptors may facilitate SARS-CoV-2 entry into ocular tissues.
- Potential implications for ocular manifestations of COVID-19.
Conclusions:
- The presence of ACE2 and CD147 suggests human ocular cells are potential targets for SARS-CoV-2.
- Further research is needed to elucidate the specific roles of these receptors in COVID-19-related eye conditions.
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