Evidence map›Paper›PMID 34169468›Full record

ReviewOphthalmology and therapy2021

Digital Tools for the Self-Assessment of Visual Acuity: A Systematic Review.

Janneau L J Claessens, Judith R Geuvers, Saskia M Imhof, Robert P L Wisse

Erratum issued Registry-linked trialAbstract readReview
In one paragraph

Review in Ophthalmology and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT06076785 (Impact of ODYSight in the Management of patientS With imparairEd Visual acuitY), which is not on this map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–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.

NCT06076785 unknown statusnot on this mapstarted 2023, after this paper: background citation

Impact of ODYSight in the Management of patientS With imparairEd Visual acuitY (ODYSSEY).

TypeobservationalSponsorTilak HealthcareRan2023 to 2024Enrolled300ConditionsImpaired Visual AcuityArmsOdySight
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  7. Validation and evaluation of visual acuity and contrast sensitivity with a new digital device: OPTOTAB®.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
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  9. Article
  10. Article
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  13. Review
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  15. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Janneau L J ClaessensDepartment of Ophthalmology, University Medical Center Utrecht, Heidelberglaan 100, 3508 GX, Utrecht, The Netherlands. j.l.j.claessens@umcutrecht.nl.ORCID http://orcid.org/0000-0001-9586-9080
Judith R GeuversFaculty of Medicine, Utrecht University, Utrecht, The Netherlands.
Saskia M ImhofDepartment of Ophthalmology, University Medical Center Utrecht, Heidelberglaan 100, 3508 GX, Utrecht, The Netherlands.
Robert P L WisseDepartment of Ophthalmology, University Medical Center Utrecht, Heidelberglaan 100, 3508 GX, Utrecht, The Netherlands.ORCID http://orcid.org/0000-0002-2844-9868

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNumerous digital tools to self-assess visual acuity have been introduced. The recent COVID-19 pandemic underlined the need for high-quality remote care. This review gives a current overview of digital tools for remotely assessing visual function and reports on their accuracy.

methodsWe searched the databases of Embase and Pubmed, and systematically reviewed the literature, conforming to PRISMA guidelines. Two preliminary papers were added from medRxiv.org. The main outcome was the agreement of the digital tools with conventional clinical charts, as expressed by mean differences and 95% limits of agreement (95% LoA).

resultsSeventeen publications included studies reported on 13 different digital tools. Most of the tools focus on distance visual acuity. The mean differences of the digital tools ranged from - 0.08 to 0.10 logMAR, when compared to traditional clinical assessments. The 95% LoA differed considerably between studies: from ± 0.08 logMAR to ± 0.47 logMAR, though the variability was less pronounced for higher visual acuities.

conclusionThe low mean differences between digital visual acuity assessments and reference charts suggest clinical equivalence, though the wide 95% LoA identify a lower precision of digital self-assessments. This effect diminishes in individuals with better visual acuities, which is a common feature of visual acuity assessments. There is great potential for the digital tools to increase access to eye care and we expect the accuracy of the current tools to improve with every iteration in technology development.

Indexed as

Digital healthe-Healthm-HealthMobile healthRemote careSelf-assessmentTelehealthTelemedicineVAVisual acuity

Identifiers

PMID34169468
PMCPMC8225487

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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.