Efficacy of a remote based computerised visual acuity measurement
Abstract
AIM: To determine the efficacy of a remotely operated computer-based logarithmic (logMAR) visual acuity chart. METHODS: Visual acuity was tested using a laptop or computer-based logMAR chart (COMPlog) for all subjects by two different methods. The methods differed by the physical presence and absence (remote) of an optometrist and in the mode of instructions provided. Remote access was obtained through the internet, using Teamviewer software to control the system linked to COMPlog and instructions were provided by telephone. The order of measurements and the eye to be tested was randomised. logMAR visual acuity and time taken were recorded. A questionnaire was used to assess the participant's feedback. RESULTS: Intraclass correlation for visual acuity between the two methods (α=0.964, 95% CI 0.937 to 0.979). There was no statistically significant difference (p=0.648) in the median visual acuity measurement between the two methods (median difference 0.00, IQR 0.20 logMAR). The time taken between the two methods was not statistically significant (p=0.457). There was no significant difference in the responses to the questionnaire between the study methods (p=0.119). CONCLUSIONS: Tele (remotely controlled) visual acuity measurement is as reliable as that measured with the physical presence of an optometrist.
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Computer-based remote visual acuity testing has been shown to deliver performance comparable to that of human testers.
“Fundamental acuity testing has been seen as a suitable candidate for remote delivery using computer-based tools [57], and it has been shown to deliver performance comparable to that of human testers [58].”
From Recent directions in telemedicine: Review of trends in research and practice (2015) · cites this paper as [58]
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- Authors
- Srinivasan, K., Ramesh, S. V., Babu, N., Sanker, N., Ray, A., & Karuna, S. M.
- Affiliations
- Manipal Academy of Higher Education (IN)
- ORCID
- Srinivasan, Krithica
- Venue
- British Journal of Ophthalmology
- Publisher
- BMJ
- Published
- 2012-04-26
- Volume
- 96
- Issue
- 7
- Pages
- 987-990
- ISSN
- 0007-1161 (ISSN-L)
- 1468-2079
- OpenAlex
- W2127158110
- Cited by
- 25
- References
- 11
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 2 · 2022: 3 · 2021: 7 · 2020: 5 · 2019: 1 · 2018: 1 · 2017: 1 · 2015: 2 · 2014: 1
- FWCI
- 0.93
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- British Journal of Ophthalmology (publishedVersion)
- PubMed (publishedVersion)
- HighWire Press Open Archive (submittedVersion)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Telemedicine and Telehealth Implementation
- Health Sciences › Medicine › Epidemiology › Ophthalmology and Visual Impairment Studies
- Health Sciences › Medicine › Ophthalmology › Ophthalmology and Visual Health Research
- Keywords
- logMAR visual acuity, telemedicine, telephone instruction, reliability statistics
- MeSH terms
- Adolescent, Adult, Diagnosis, Computer-Assisted, Female, Humans, Male, Middle Aged, Surveys and Questionnaires, Vision Disorders, Visual Acuity, Vision Screening, Remote Consultation, Internet, Young Adult
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