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Eye banking in the coronavirus disease 2019 era
1Department of Ophthalmology and Visual Sciences, W. K. Kellogg Eye Center, University of Michigan, Ann Arbor, Michigan, USA.
Purpose Of Review:
Coronavirus disease 2019, caused by novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is highly infectious; however, the different routes of transmission are not well understood. Transmission through tissue transplantation is possible and must be considered. This review will evaluate the current literature regarding routes of transmission, the likelihood of transmission through ocular tissue transplantation, and the guidelines in place to mitigate this risk.
Recent Findings:
Although respiratory droplets have been the primary route of SARS-CoV-2 transmission, there is evidence that transmission through blood donation and organ or tissue transplantation is possible. This includes corneal transplantation, as SARS-CoV-2 has been detected in conjunctival swabs of infected patients, and the ocular surface may play an important role in viral entry. Several tissue transplantation organizations have guidelines in place regarding the screening of donors and tissue procurement procedures, including clinical and/or PCR screening of donors. The Eye Bank Association of America (EBAA) is currently not recommending asymptomatic PCR screening. However, their antiseptic protocols may play an important role in viral inactivation.
Summary:
Based on the current literature and guidelines, the risk of SARS-CoV-2 transmission through corneal transplantation is likely low. However, tissue screening guidelines need to be re-evaluated regularly as knowledge regarding the SARS-CoV-2 virus evolves.
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