Evidence map›Paper›PMID 34043796›Full record

SynthesisInternational health2022

Ocular transmission and manifestation for coronavirus disease: a systematic review.

Ahmed Almazroa, Suhailah Alamri, Balsam Alabdulkader, Hanan Alkozi, Altaf Khan, Walead Alghamdi

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

6 citing papers in PubMed, 16 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

Ahmed AlmazroaDepartment of Imaging Research, King Abdullah International Medical Research Center, Riyadh, 11481, Saudi Arabia.
Suhailah AlamriDepartment of Imaging Research, King Abdullah International Medical Research Center, Riyadh, 11481, Saudi Arabia.
Balsam AlabdulkaderDepartment of Optometry and Vision Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, 12372, Saudi Arabia.
Hanan AlkoziDepartment of Imaging Research, King Abdullah International Medical Research Center, Riyadh, 11481, Saudi Arabia.
Altaf KhanDepartment of Biostatistics and Bioinformatics, King Abdullah International Medical Research center, Riyadh, 11481, Saudi Arabia.
Walead AlghamdiOptometry Department, College of Applied Medical Sciences, Qassim University, Qassim, 51452, Saudi Arabia.
King Saud bin Abdulaziz University for Health Sciences · SAKing Abdullah International Medical Research Center · SAKing Saud University · SAQassim University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is currently a lack of information regarding ocular tropism and the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Globally, the cumulative number of coronavirus disease 2019 (COVID-19) cases is increasing daily. Thus the potential for ocular transmission and manifestations of SARS-CoV-2 requires more investigation.

methodsA systematic search of electronic databases for ocular transmission and manifestations of SARS-CoV-2 was performed. Pooled cross-sectional studies were used for conducting a meta-analysis to estimate the prevalence of ocular transmission of SARS-CoV-2 to the respiratory system and ocular manifestations (associated symptoms) of SARS-CoV-2.

resultsThe highest prevalence of SARS-CoV-2-positive tears using reverse transcription polymerase chain reaction was found to be 7.5%. However, the highest prevalence of ocular conjunctivitis associated with SARS-CoV-2 was 32%. Thus, SARS-CoV-2 can evidently infect the eye, as revealed in the conjunctival secretions of COVID-19 patients.

conclusionThe available data reflect the influence of the ocular structure on SARS-CoV-2. The analysis showed that ocular manifestation is an indication for SARS-CoV-2, particularly conjunctivitis. Moreover, there is no evidence that the ocular structure can be an additional path of transmission for SARS-CoV-2, however, it warrants further investigation.

Indexed as

COVID-19ConjunctivaCross-Sectional StudiesHumansSARS-CoV-2Tearsconjunctival swabsconjunctivitiscoronavirusCOVID-19nasopharyngeal swabsocular manifestationocular transmissionSARS-CoV-2tears

Identifiers

PMID34043796
PMCPMC8195065
OpenAlexW3165706651

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.