ArticleIndian journal of ophthalmology2021
Validation of visual acuity applications for teleophthalmology during COVID-19.
Article in Indian journal of ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.
What it found
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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.
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Who cites it
26 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Evaluating the Quality and Features of Visual Acuity Apps Using the Mobile App Rating Scale: Systematic Review.JMIR mHealth and uHealth · 2025Pooled it
- Applications, benefits and challenges of telehealth in India during COVID-19 pandemic and beyond: a systematic review.BMC health services research · 2023Pooled it
- "Smart Optometry" phone-based application as a visual acuity testing tool among pediatric population.Saudi medical journal · 2022Trial
- Validation of Home Visual Acuity Tests for Telehealth in the COVID-19 Era.JAMA ophthalmology · 2022Trial
- Clinical Validation of a Comprehensive Vision Screener for Assessing Visual Fitness for Drivers in Mumbai, India.Clinical optometry · 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
- 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) · 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
- Assessment of visual function using mobile Apps.Eye (London, England) · 2024Review
- Effects of brightness variations on a smartphone-based version of Radner reading charts.Eye (London, England) · 2024Article
- A Situational Analysis of the Impact of the COVID-19 Pandemic on Digital Health Research Initiatives in South Asia.Cureus · 2023Review
- The validation of inherited retinal disease-specific patient-reported outcome measures in adolescent patients.Ophthalmic genetics · 2023Article
- The Accuracy of a Web-Based Visual Acuity Self-assessment Tool Performed Independently by Eye Care Patients at Home: Method Comparison Study.JMIR formative research · 2023Article
- Feasibility study for measuring patients' visual acuity at home by their caregivers.Indian journal of ophthalmology · 2022Article
- Applications and Current Medico-Legal Challenges of Telemedicine in Ophthalmology.International journal of environmental research and public health · 2022Review
- Analysis of COVID-19 publications in theIndian journal of ophthalmology · 2022Article
- Setting up a primary eye care teleconsultation service.Community eye health · 2022Article
- Digital Tools for the Self-Assessment of Visual Acuity: A Systematic Review.Ophthalmology and therapy · 2021Review
- Clinical validation of a novel smartphone application for measuring best corrected visual acuity.Journal of optometryArticle
- Comparison of smartphone application-based visual acuity with traditional visual acuity chart for use in tele-ophthalmology.Taiwan journal of ophthalmologyArticle
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe objective of this study was to identify and validate smartphone-based visual acuity (VA) apps that can be used in a teleophthalmology portal.
methodsThe study was conducted in three phases: A survey to investigate if the SmartOptometry App was easy to download, understand and test (phase I), an in-clinic comparison of VA measured in a random testing order with four tools namely COMPlog, Reduced Snellen near vision, Peek Acuity (Distance VA) and SmartOptometry (Near VA) (phase II) and a repeatability study on these 4 tools by measuring VA again (phase III). The study recruited the employees of our institute and adhered to the strict COVID-19 protocols of testing.
resultsPhase I Survey (n = 40) showed 90% of participants used android phones, 60% reported that instructions were clear, and all users were able to self-assess their near VA with SmartOptometry App. Phase II (n = 68) revealed that Peek Acuity was comparable to COMPlog VA (P = 0.31), however SmartOptometry was statistically significantly different (within 2 log MAR lines) from Reduced Snellen near vision test, particularly for young (n = 44, P = 0.004) and emmetropic (n = 16, P = 0.04) participants. All the 4 tests were found to be repeatable in phase III (n = 10) with a coefficient of repeatability ≤0.14.
conclusionSmartphone-based apps were easy to download and can be used for checking patient's distance and near visual acuity. An effect of age and refractive error should be considered when interpreting the results. Further studies with real-time patients are required to identify potential benefits and challenges to solve.
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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.