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Related Experiment Video

Updated: Sep 19, 2025

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Feasibility of Using Smartphone Eye Tracking for Self-Recording Positional Tests.

Pouya B Bastani1,2, Vidith Phillips1, Hector Rieiro1,2

  • 1Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Digital Biomarkers
|June 19, 2025
PubMed
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This summary is machine-generated.

A smartphone app called EyePhone allows individuals to self-record eye movements for diagnosing benign paroxysmal positional vertigo (BPPV). This technology shows promise for remote diagnosis and improving patient access to care.

Area of Science:

  • Ophthalmology
  • Neurology
  • Medical Technology

Background:

  • Benign paroxysmal positional vertigo (BPPV) is a frequent cause of dizziness.
  • Diagnosis relies on detecting nystagmus via positional testing.
  • Limited access to clinicians hinders timely BPPV diagnosis and treatment.

Purpose of the Study:

  • To evaluate the usability of a smartphone-based eye-tracking application (EyePhone).
  • To assess the feasibility of self-recording eye movements during positional tests for BPPV diagnosis.

Main Methods:

  • Healthy volunteers used the EyePhone app to self-record Dix-Hallpike and Supine Roll tests.
  • Participant accuracy and time taken were recorded.
  • App usability was assessed via the mHealth App Usability Questionnaire (MAUQ); video quality was evaluated by experts.
Keywords:
Benign paroxysmal positional vertigoEye trackingPositional testingSmartphones

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Main Results:

  • All participants successfully recorded eye movements using the app.
  • Average recording times were 3 min 31 s for Dix-Hallpike and 3 min 4 s for Supine Roll.
  • 95% of videos showed clear eye visibility, and participants found the app easy to use.

Conclusions:

  • The EyePhone app is usable and feasible for self-recording positional tests.
  • This technology has the potential to facilitate remote BPPV diagnosis.
  • The app may improve patient access to care for dizziness and vertigo.