ArticleEye (London, England)2022
Clinical validation of a novel web-application for remote assessment of distance visual acuity.
Article in Eye (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04482387 (DigiVis), which is not on this map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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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.
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.
DigiVis: Validation of Self-testing Visual Acuity Web-based App to Aid Ophthalmic Telephone Consultations During Covid19 Lockdown and Subsequent Social Distancing Crisis
Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Accuracy and reliability of self-administered visual acuity tests: Systematic review of pragmatic trials.PloS one · 2023Pooled it
- Validation of Home Visual Acuity Tests for Telehealth in the COVID-19 Era.JAMA ophthalmology · 2022Trial
- Real-world evaluation of online visual acuity self-testing and remote consultation: three years of implementation experience in a paediatric ophthalmology service.Eye (London, England) · 2026Article
- Exploring Parental Views of Remote Vision Testing in Children.The British and Irish orthoptic journal · 2026Article
- Enhancing access and clinical triage in primary eye care through digital vision testing: validation of the SightConnect mobile application.Frontiers in digital health · 2026Article
- Comparison of Online Visual Acuity Testing with Dynamic Dyop and Static LogMAR Optotypes in Healthy Non-Presbyopic and Presbyopic Individuals.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Visual acuities as measured with an automatic intelligent visual acuity chart projector and standard logarithmic visual acuity chart: a prospective comparative study.Frontiers in medicine · 2025Article
- Web-based vs. conventional: a comprehensive analysis of visual acuity assessment using the PocDoc tool in a tertiary eye care centre.Eye (London, England) · 2024Observational
- Evaluation of Patient Experiences with PocDoc, a Web-Based Eye Screening Tool.Ophthalmology and therapy · 2024Article
- An Initial Validation of Community-Based Air-Conduction Audiometry in Adults With Simulated Hearing Impairment Using a New Web App, DigiBel: Validation Study.JMIR formative research · 2024Article
- Children's visual acuity tests without professional supervision: a prospective repeated measures study.Eye (London, England) · 2023Article
- Diagnostic Accuracy of Online Visual Acuity Testing of Paediatric Patients.The British and Irish orthoptic journal · 2023Article
- Vision Quality of Life with Time Survey: Normative Data and Repeatability.Clinical optometry · 2023Article
- Validation of a novel iPhone application for evaluating near functional visual acuity.Scientific reports · 2022Article
- Comment on: The reliability of visual acuity measurements from inpatient referrals to ophthalmology.Eye (London, England) · 2022Article
- Analysis of the Reliability and Repeatability of Distance Visual Acuity Measurement with EyeSpy 20/20.Clinical ophthalmology (Auckland, N.Z.) · 2022Article
- Novel web application for self-assessment of distance visual acuity to support remote consultation: a real-world validation study in children.BMJ open ophthalmology · 2021Article
- Ease and Willingness to Use Smartphone Applications for Visual Acuity Assessment Among Patients in Ahmadu Bello University Teaching Hospital, Zaria.Journal of the West African College of SurgeonsArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
objectivesOphthalmic disorders cause 8% of hospital clinic attendances, the highest of any specialty. The fundamental need for a distance visual acuity (VA) measurement constrains remote consultation. A web-application, DigiVis, facilitates self-assessment of VA using two internet-connected devices. This prospective validation study aimed to establish its accuracy, reliability, usability and acceptability. SUBJECTS/
methodsIn total, 120 patients aged 5-87 years (median = 27) self-tested their vision twice using DigiVis in addition to their standard clinical assessment. Eyes with VA worse than +0.80 logMAR were excluded. Accuracy and test-retest (TRT) variability were compared using Bland-Altman analysis and intraclass correlation coefficients (ICC). Patient feedback was analysed.
resultsBias between VA tests was insignificant at -0.001 (95% CI -0.017 to 0.015) logMAR. The upper limit of agreement (LOA) was 0.173 (95% CI 0.146 to 0.201) and the lower LOA -0.175 (95% CI -0.202 to -0.147) logMAR. The ICC was 0.818 (95% CI 0.748 to 0.869). DigiVis TRT mean bias was similarly insignificant, at 0.001 (95% CI -0.011 to 0.013) logMAR, the upper LOA was 0.124 (95% CI 0.103 to 0.144) and the lower LOA -0.121 (95% CI -0.142 to -0.101) logMAR. The ICC was 0.922 (95% CI 0.887 to 0.946). 95% of subjects were willing to use DigiVis to monitor vision at home.
conclusionsSelf-tested distance VA using DigiVis is accurate, reliable and well accepted by patients. The app has potential to facilitate home monitoring, triage and remote consultation but widescale implementation will require integration with NHS databases and secure patient data storage.
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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.