Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions

Introduction The unmet need for remote monitoring of visual function with home-based, patient-centric technologies became increasingly palpable during the COVID-19 pandemic. Many patients with chronic eye conditions lack access to office-based examinations. Here, we evaluate the efficacy of the Accu...

Full description

Bibliographic Details
Main Authors: Earnest P Chen, Michael Mills, Tara Gallagher, Andrew Polis, Sophie Blasberg, Peter Pham, Ronald C Gentile, Tsontcho Ianchulev
Format: Article
Language:English
Published: SAGE Publishing 2023-06-01
Series:Digital Health
Online Access:https://doi.org/10.1177/20552076231180727
_version_ 1797810789703221248
author Earnest P Chen
Michael Mills
Tara Gallagher
Andrew Polis
Sophie Blasberg
Peter Pham
Ronald C Gentile
Tsontcho Ianchulev
author_facet Earnest P Chen
Michael Mills
Tara Gallagher
Andrew Polis
Sophie Blasberg
Peter Pham
Ronald C Gentile
Tsontcho Ianchulev
author_sort Earnest P Chen
collection DOAJ
description Introduction The unmet need for remote monitoring of visual function with home-based, patient-centric technologies became increasingly palpable during the COVID-19 pandemic. Many patients with chronic eye conditions lack access to office-based examinations. Here, we evaluate the efficacy of the Accustat® test, a virtual application for measuring near visual acuity on any portable electronic device via telehealth. Materials and methods Thirty-three adult subjects from the telehealth remote monitoring service of a retina practice performed the Accustat® acuity testing at home. All patients underwent in-office general eye examination with additional fundoscopic examination and optical coherence tomography retina imaging. Best corrected visual acuity assessment using a Snellen chart was compared with remote visual acuity assessment with the Accustat® test. Visual acuity was analyzed and compared between the best-corrected near visual acuity potential achieved on the Accustat® and in-office distance best-corrected Snellen visual acuity. Results The mean logarithm of the minimum angle of resolution (logMAR) visual acuities of all eyes tested using the Accustat test was 0.19 ± 024 and for the office Snellen test 0.21 ±  0.21. A linear regression model with 95% confidence intervals reveals that there is a strong linear relationship between Accustat logMAR and office Snellen logMAR. Bland–Altman analysis demonstrated 95.2% significant agreement between Accustat and Office Snellen’s best corrected visual acuity. Intraclass correlation coefficient (ICC = 0.94) demonstrated a strong positive correlation between at home versus office visual acuity. Conclusion There was a high correlation between the visual acuity measured with the Accustat near vision digital self-test and the office Snellen acuity test, suggesting the potential utility of scalable remote monitoring of central retinal function via telehealth.
first_indexed 2024-03-13T07:14:05Z
format Article
id doaj.art-97b068057f3d4f74b2b8b0b99748603a
institution Directory Open Access Journal
issn 2055-2076
language English
last_indexed 2024-03-13T07:14:05Z
publishDate 2023-06-01
publisher SAGE Publishing
record_format Article
series Digital Health
spelling doaj.art-97b068057f3d4f74b2b8b0b99748603a2023-06-05T13:34:09ZengSAGE PublishingDigital Health2055-20762023-06-01910.1177/20552076231180727Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditionsEarnest P Chen0Michael Mills1Tara Gallagher2Andrew Polis3Sophie Blasberg4Peter Pham5Ronald C Gentile6Tsontcho Ianchulev7 , New York, USA Department of Ophthalmology, Prism Eye Institute, Oakville, ON, Canada Department of Ophthalmology, Gentile Retina Practice, New York, USA Department of Ophthalmology, Gentile Retina Practice, New York, USA Department of Ophthalmology, Gentile Retina Practice, New York, USA , New York, USA Department of Ophthalmology, New York University Long Island School of Medicine, New York, USA , New York, USAIntroduction The unmet need for remote monitoring of visual function with home-based, patient-centric technologies became increasingly palpable during the COVID-19 pandemic. Many patients with chronic eye conditions lack access to office-based examinations. Here, we evaluate the efficacy of the Accustat® test, a virtual application for measuring near visual acuity on any portable electronic device via telehealth. Materials and methods Thirty-three adult subjects from the telehealth remote monitoring service of a retina practice performed the Accustat® acuity testing at home. All patients underwent in-office general eye examination with additional fundoscopic examination and optical coherence tomography retina imaging. Best corrected visual acuity assessment using a Snellen chart was compared with remote visual acuity assessment with the Accustat® test. Visual acuity was analyzed and compared between the best-corrected near visual acuity potential achieved on the Accustat® and in-office distance best-corrected Snellen visual acuity. Results The mean logarithm of the minimum angle of resolution (logMAR) visual acuities of all eyes tested using the Accustat test was 0.19 ± 024 and for the office Snellen test 0.21 ±  0.21. A linear regression model with 95% confidence intervals reveals that there is a strong linear relationship between Accustat logMAR and office Snellen logMAR. Bland–Altman analysis demonstrated 95.2% significant agreement between Accustat and Office Snellen’s best corrected visual acuity. Intraclass correlation coefficient (ICC = 0.94) demonstrated a strong positive correlation between at home versus office visual acuity. Conclusion There was a high correlation between the visual acuity measured with the Accustat near vision digital self-test and the office Snellen acuity test, suggesting the potential utility of scalable remote monitoring of central retinal function via telehealth.https://doi.org/10.1177/20552076231180727
spellingShingle Earnest P Chen
Michael Mills
Tara Gallagher
Andrew Polis
Sophie Blasberg
Peter Pham
Ronald C Gentile
Tsontcho Ianchulev
Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions
Digital Health
title Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions
title_full Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions
title_fullStr Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions
title_full_unstemmed Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions
title_short Remote vision testing of central retinal acuity and comparison with clinic-based Snellen acuity testing in patients followed for retinal conditions
title_sort remote vision testing of central retinal acuity and comparison with clinic based snellen acuity testing in patients followed for retinal conditions
url https://doi.org/10.1177/20552076231180727
work_keys_str_mv AT earnestpchen remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT michaelmills remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT taragallagher remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT andrewpolis remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT sophieblasberg remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT peterpham remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT ronaldcgentile remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT tsontchoianchulev remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions
AT remotevisiontestingofcentralretinalacuityandcomparisonwithclinicbasedsnellenacuitytestinginpatientsfollowedforretinalconditions