Is your vision blurry? A systematic review of home-based visual acuity for telemedicine

Journal of Telemedicine and Telecare
Anindya SamantaPatricia C Nelson

Abstract

Visual acuity (VA) testing is a vital screening tool for the assessment of ocular function. The coronavirus 2019 pandemic has caused an immediate need for synchronous telemedicine in all specialties, including ophthalmology. While a plethora of mobile VA applications exist, there is no consensus as to what technology can accurately and reproducibly measure a patient's vision at home. A systematic literature search was performed in April 2020 using PubMed, Embase and Medline, identifying English publications from 2010 to 2020 on remote VA tests: 4338 articles were identified and 14 were ultimately included in the review. Of those 14, the highest quality studies, best reproducibility and correlation with in-clinic acuities measured were found using the Peek Acuity application. The studies included patients throughout the world aged 3-97, with and without correction, with known ocular pathology.The Peek Acuity studies measured distance vision on a Samsung Galaxy S3 with a mean difference of 0.055 Logarithm of the Minimum Angle of Resolution (LogMAR) for home testing compared with the Early Treatment Diabetic Retinopathy Study (ETDRS). Test-retest variability was ±0.029 LogMAR for 95% confidence interval limits. There can be one or...Continue Reading

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Citations

Mar 11, 2021·Seminars in Ophthalmology·Inas F Aboobakar, David S Friedman
Aug 28, 2021·Journal of Clinical Medicine·Sze H Wong, James C Tsai
Aug 29, 2021·BMJ Open·Samantha SiiSohaib R Rufai

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