Evidence map›Paper›PMID 39093386›Full record

ArticleOphthalmology and therapy2024

The Impact of the COVID-19 Pandemic on Tele-ophthalmology-Based Retinal Screening.

Marie L R Rasmussen, Lasse J Cehofski, Julie Davies, Carsten Faber, Mads K Falk, Jakob Grauslund, Michael S Hansen, Pearse A Keane, Sundaram Natarajan, Tunde Peto and 3 more

Abstract read
In one paragraph

Article in Ophthalmology and therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Telemedicine in ophthalmology.Wiener medizinische Wochenschrift (1946) · 2025
    Review
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

13 authors.

Marie L R RasmussenDepartment of Ophthalmology, Rigshospitalet, Glostrup, Denmark.
Lasse J CehofskiDepartment of Ophthalmology, Aalborg University Hospital, Aalborg, Denmark.
Julie DaviesGlobal Business School for Health, University College London, London, UK.
Carsten FaberDepartment of Ophthalmology, Rigshospitalet, Glostrup, Denmark.
Mads K FalkFaculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Jakob GrauslundDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Michael S HansenDepartment of Ophthalmology, Rigshospitalet, Glostrup, Denmark.
Pearse A KeaneNIHR Biomedical Research Centre at Moorfields, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK.
Sundaram NatarajanAditya Jyot Eye Hospital Pvt. Ltd., Mumbai, Maharashtra, India.
Tunde PetoCentre for Public Health, Queen's University Belfast, Belfast, UK.
Yousif SubhiDepartment of Ophthalmology, Rigshospitalet, Glostrup, Denmark.
Charles C WykoffRetina Consultants of Texas, Houston, TX, USA.
Danson V MuttuveluFaculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. dansonvm@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study reports our experiences with systematic retinal screening in Denmark through optometrists with access to tele-ophthalmological services before, during, and after the COVID-19 pandemic.

methodsWe evaluated an optometrist-based retinal screening system with a referral option for tele-ophthalmological service by a consultant ophthalmologist within the time period of August 1, 2018 to September 30, 2023. The optometrist collected patient history, refraction, best-corrected visual acuity, intraocular pressure, basic slit-lamp examination, 4-in-1 visual field report, and retinal imaging using color fundus 45° photography. Tele-ophthalmological services were provided by consultant ophthalmologists. Within pre-defined periods of pre-COVID-19, COVID-19, and post-COVID-19, we evaluated the rate of referrals to the tele-ophthalmological service, diagnoses made, and referrals to the public healthcare system.

resultsA total of 1,142,028 unique individuals, which corresponded to 19.1% of the entire population of Denmark, underwent screening by the optometrists; 50,612 (4.4%) of these individuals were referred to the tele-ophthalmological examination by consultant ophthalmologists. A referral for further ophthalmic examination, either at hospital or at an ophthalmic practice, was made for 10,300 individuals (20.4% of those referred for tele-ophthalmology, corresponding to 0.9% of the population screened). The referral rate from the screening to the tele-ophthalmological service increased from before COVID-19 (3.4%) to during COVID-19 (4.3%) and further after COVID-19 (6.4%). This increase coincided with an increasing prevalence of conditions seen in the tele-ophthalmological service.

conclusionDuring a period of 5 years, 19.1% of the entire population of Denmark underwent retinal screening. This provided an adjunctive health service during a period of severe strain on the public healthcare system, while limiting the number of excessive referrals to the public healthcare system. Temporal trends illustrated an increased pattern of use of a large-scale tele-ophthalmological system.

Indexed as

COVID-19Healthcare organizationRetinal screeningTele-ophthalmology

Identifiers

PMID39093386
PMCPMC11341501

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LicenceCC BY-NC
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Registered trials

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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.