Evidence map›Paper›PMID 34349497›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2021

Comparing a Home Vision Self-Assessment Test to Office-Based Snellen Visual Acuity.

Tiffany A Chen, Jonathan Li, Julie M Schallhorn, Catherine Q Sun

Abstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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.

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

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

  1. Pooled it
  2. Trial
  3. Exploring Parental Views of Remote Vision Testing in Children.The British and Irish orthoptic journal · 2026
    Article
  4. Article
  5. Observational
  6. Estimating Visual Acuity Without a Visual Acuity Chart.Translational vision science & technology · 2024
    Article
  7. Evaluation of the Amblyopia tracker app.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  8. Article
  9. Article
  10. Article
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

4 authors.

Tiffany A ChenDepartment of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.
Jonathan LiDepartment of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.
Julie M SchallhornDepartment of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.
Catherine Q SunDepartment of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.

Funding

Rapid-Prototyping and Design CoreP30EY002162 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LAMBA, DEEPAK ASHOK · 1985 to 2024
$16.8M
UCSF-Proctor Clinician Vision Scholars K12 ProgramK12EY031372 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI THOMAS M LIETMAN, Yvonne Ou · 2020 to 2026
$3.9M
NEI NIH HHS K12 EY031372NEI NIH HHS P30 EY002162
6 · The paper itself

Abstract

purposeTo evaluate the agreement of a home vision screening test compared to standard in-office technician-measured Snellen visual acuity to allow for remote screening and triaging of patients. PATIENTS AND

methodsIn this prospective study, English-speaking patients with in-office ophthalmology appointments from May to August 2020 and visual acuity better than 20/125 were asked to complete a home vision test one week before their scheduled in-office appointment. The home vision test was a modified ETDRS chart displayed in a PDF document that could be printed or viewed on a monitor. The primary outcome was the mean difference between office-based and home visual acuity.

resultsEighty-two eyes of 45 patients were included in the study with 45 study eyes analyzed. The mean difference between office-based and home visual acuity was -0.02 logMAR (SD 0.15,

conclusionThere was good agreement between the home and in-office Snellen tests for patients with vision better than 20/125. The home vision test can be used to remotely determine if there is a significant vision change of >0.2 logMAR or approximately 2 lines of visual acuity.

Indexed as

home vision testtelemedicinetele-ophthalmologyvision screening

Identifiers

PMID34349497
PMCPMC8326937

What OpenQuestion holds

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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.