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An Automated Method for Assessing Visual Acuity in Infants and Toddlers Using an Eye-Tracking System
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Efficacy of a remote based computerised visual acuity measurement.

Krithica Srinivasan1, S Ve Ramesh, Noushad Babu

  • 1Department of Optometry, Manipal College of Allied Health Science, Manipal University, Karnataka, India.

The British Journal of Ophthalmology
|April 28, 2012
PubMed
Summary

Remote visual acuity testing using a computer-based chart is as reliable as in-person assessments. This tele-optometry method offers comparable accuracy and efficiency for logMAR visual acuity measurements.

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Area of Science:

  • Ophthalmology
  • Telemedicine
  • Optometry

Background:

  • Traditional visual acuity testing requires in-person visits.
  • Advancements in technology enable remote patient monitoring and assessment.

Purpose of the Study:

  • To evaluate the efficacy of a remotely operated computer-based logarithmic (logMAR) visual acuity chart.
  • To compare remote visual acuity testing with traditional in-person methods.

Main Methods:

  • Visual acuity was assessed using a computer-based logMAR chart (COMPlog) via two methods: with and without an optometrist physically present (remote).
  • Remote assessment utilized internet-based Teamviewer software for system control and telephone for instructions.
  • Measurements were randomized, and participant feedback was collected via questionnaire.

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Main Results:

  • High intraclass correlation (α=0.964) was found for visual acuity between the two methods.
  • No statistically significant difference in median visual acuity (p=0.648) or time taken (p=0.457) was observed.
  • Participant feedback showed no significant difference between the remote and in-person methods (p=0.119).

Conclusions:

  • Remotely controlled tele-visual acuity measurement demonstrates reliability comparable to in-person assessments.
  • Computer-based logMAR charts are effective tools for remote visual acuity testing.
  • Tele-optometry presents a viable alternative for visual acuity assessment.