Evidence map›Paper›PMID 33176215›Full record

ArticleThe ocular surface2021

Prevalence of SARS-CoV-2 in human post-mortem ocular tissues.

Onkar B Sawant, Sneha Singh, Robert Emery Wright, Kayla M Jones, Michael S Titus, Eugene Dennis, Eric Hicks, Parag A Majmudar, Ashok Kumar, Shahzad I Mian

Open access · greenAbstract read
In one paragraph

Article in The ocular surface, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
14.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. Pooled it
  2. Retrospective Evaluation of Successive BiovanceClinical ophthalmology (Auckland, N.Z.) · 2026
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9 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Onkar B SawantCenter for Vision and Eye Banking Research, Eversight, 6700 Euclid Ave, Suite 101, Cleveland, OH, 44103, USA.
Sneha SinghDepartment of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, 4717 St. Antoine, Detroit, MI, 48201, USA.
Robert Emery WrightDepartment of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, 4717 St. Antoine, Detroit, MI, 48201, USA.
Kayla M JonesCenter for Vision and Eye Banking Research, Eversight, 6700 Euclid Ave, Suite 101, Cleveland, OH, 44103, USA.
Michael S TitusDepartment of Clinical Operations, Eversight, 3985 Research Park Dr, Ann Arbor, MI, 48108, USA.
Eugene DennisDepartment of Clinical Operations, Eversight, 77 Brant Ave, Clark, NJ, 07066, USA.
Eric HicksDepartment of Clinical Operations, Eversight, 3985 Research Park Dr, Ann Arbor, MI, 48108, USA.
Parag A MajmudarDepartment of Ophthalmology, Rush University, 1725 W. Harrison St, Chicago, IL, 60612, USA.
Ashok KumarDepartment of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, 4717 St. Antoine, Detroit, MI, 48201, USA. Electronic address: akuma@med.wayne.edu.
Shahzad I MianKellogg Eye Institute, University of Michigan, 1000 Wall St, Ann Arbor, MI, 48105, USA. Electronic address: smian@med.umich.edu.
Wayne State University · USRush University · USW.K. Kellogg Foundation · US

Funding

VISION RESEARCH--COREP30EY004068 · NEI · WAYNE STATE UNIVERSITY · PI LINDA D HAZLETT · 1985 to 2026
$13.2M
Targeting NAD metabolism to ameliorate bacterial endophthalmitisR01EY026964 · NEI · WAYNE STATE UNIVERSITY · PI Ashok Kumar · 2017 to 2026
$3.7M
Mechanisms of Inflammation Resolution in Bacterial EndophthalmitisR01EY027381 · NEI · WAYNE STATE UNIVERSITY · PI Ashok Kumar · 2017 to 2026
$3.3M
Genomic evidences based novel therapy for Staphylococcal infectionsR21AI140033 · NIAID · WAYNE STATE UNIVERSITY · PI BHASIN, MANOJ, KUMAR, ASHOK · 2019 to 2020
$456k
Role of ABCG1 in Zika virus induced chorioretinal atrophyR21AI135583 · NIAID · WAYNE STATE UNIVERSITY · PI KUMAR, ASHOK · 2018 to 2019
$424k
NEI NIH HHS P30 EY004068NEI NIH HHS R01 EY026964NEI NIH HHS R01 EY027381NIAID NIH HHS R21 AI135583NIAID NIH HHS R21 AI140033
6 · The paper itself

Abstract

backgroundSARS-CoV-2 is found in conjunctival swabs and tears of COVID-19 patients. However, the presence of SARS-CoV-2 has not been detected in the human eye to date. We undertook this study to analyze the prevalence of SARS-CoV-2 in human post-mortem ocular tissues.

methodsThe expression of SARS-CoV-2 RNA was assessed by RT-PCR in corneal and scleral tissues from 33 surgical-intended donors who were eliminated from a surgical use per Eye Bank Association of America (EBAA) donor screening guidelines or medical director review or positive COVID-19 test. Ocular levels of SARS-CoV-2 RNA (RT-PCR), Envelope and Spike proteins (immunohistochemistry) and anti-SARS-CoV-2 IgG and IgM antibodies (ELISA) in blood were evaluated in additional 10 research-intent COVID-19 positive donors.

findingsOf 132 ocular tissues from 33 surgical-intended donors, the positivity rate for SARS-CoV-2 RNA was ~13% (17/132). Of 10 COVID-19 donors, six had PCR positive post-mortem nasopharyngeal swabs whereas eight exhibited positive post-mortem anti-SARS-CoV-2 IgG levels. Among 20 eyes recovered from 10 COVID-19 donors: three conjunctival, one anterior corneal, five posterior corneal, and three vitreous swabs tested positive for SARS-CoV-2 RNA. SARS-CoV-2 spike and envelope proteins were detected in epithelial layer of the corneas that were procured without Povidone-Iodine (PVP-I) disinfection. INTERPRETATIONS: Our study showed a small but noteworthy prevalence of SARS-CoV-2 in ocular tissues from COVID-19 donors. These findings underscore the criticality of donor screening guidelines, post-mortem nasopharyngeal PCR testing and PVP-I disinfection protocol to eliminate any tissue harboring SARS-CoV-2 being used for corneal transplantation.

Indexed as

AutopsyCOVID-19AgedConjunctivaCorneaFemaleHumansMaleMiddle AgedPrevalenceRNA, ViralSARS-CoV-2Vitreous BodyRNA, ViralCorneaCorneal transplantationCOVID-19SARS-CoV-2

Identifiers

PMID33176215
PMCPMC7649030
OpenAlexW3105041435

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.