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Related Experiment Video

Updated: Oct 9, 2025

Author Spotlight: An Automated Method for Assessing Visual Acuity in Infants and Toddlers Using an Eye-Tracking System
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Web-based visual acuity testing for children.

Eileen E Birch1, Lindsey A Hudgins2, Reed M Jost2

  • 1Retina Foundation of the Southwest, Dallas, Texas; Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas.

Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
|December 17, 2021
PubMed
Summary
This summary is machine-generated.

A new web-based system for at-home pediatric visual acuity testing shows excellent agreement with in-office eye exams. This approach can help maintain continuous vision care for children, especially when travel is difficult.

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Area of Science:

  • Ophthalmology
  • Pediatric Medicine
  • Digital Health

Background:

  • Accurate visual acuity testing is crucial for early detection and management of pediatric vision disorders.
  • Traditional in-office testing can present logistical challenges for families, potentially leading to delayed or missed appointments.
  • Web-based technologies offer a promising avenue for remote health monitoring and patient engagement.

Purpose of the Study:

  • To evaluate a novel web-based system for conducting pediatric visual acuity tests at home.
  • To compare the results obtained from the at-home system with standard in-office visual acuity assessments.

Main Methods:

  • Sixty-five children aged 3-12 years, with and without visual deficits, participated in the study.
  • Monocular visual acuity was assessed in-office using the ATS-HOTV (ages 3-6) or E-ETDRS (ages 7-12) protocols.
  • Families received a link to a web-based version of the same tests for at-home administration; equivalence was analyzed using linear mixed models.

Main Results:

  • For the ATS-HOTV protocol, the mean difference between in-office and at-home results was 0.01 log MAR (95% CI, -0.06 to 0.09).
  • For the E-ETDRS protocol, the mean difference was 0.04 log MAR (95% CI, -0.06 to 0.14).
  • These findings indicate excellent concordance between at-home and in-office visual acuity measurements.

Conclusions:

  • The developed web-based system for at-home pediatric visual acuity testing demonstrates high concordance with in-office testing.
  • At-home testing can be a valuable tool to ensure continuity of care, particularly for families facing travel burdens.
  • This technology may help prevent discontinuation or delays in essential vision care for children.