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Related Experiment Video

Updated: Sep 18, 2025

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
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Peripherex Home Visual Field Demonstrates High Test-Retest Reliability, Validity.

Justin Schweitzer1, Mitch Ibach1, John Berdahl1

  • 1Vance Thompson Vision, Sioux Falls, SD, USA.

Clinical Ophthalmology (Auckland, N.Z.)
|June 23, 2025
PubMed
Summary
This summary is machine-generated.

Home-based visual field testing using the Peripherex Visual Field Test (PRX-VFT) app is feasible and correlates well with in-office Humphrey Field Analyzer (HFA) testing for glaucoma patients.

Keywords:
glaucomahome healthcareprospective clinical trialvisual field test

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Area of Science:

  • Ophthalmology
  • Medical Technology

Background:

  • Glaucoma care faces unmet needs in disease assessment and progression monitoring.
  • Current visual field testing methods have limitations in accessibility and frequency.

Purpose of the Study:

  • To evaluate a novel home-based app, Peripherex Visual Field Test (PRX-VFT), for visual field testing.
  • To compare the PRX-VFT's performance against in-office Humphrey Field Analyzer (HFA) data.

Main Methods:

  • An observational, multicenter, open-label clinical trial was conducted.
  • Patients with glaucoma, glaucoma suspect, or ocular hypertension were enrolled.
  • PRX-VFT tests were performed and compared to matched HFA data.

Main Results:

  • Test-retest reliability for PRX-VFT was good (ICC 0.7596).
  • PRX-VFT demonstrated excellent sensitivity (95.7%) and NPV (98.27%) for detecting abnormal fields.
  • PRX-VFT showed very good specificity (79.26%) and PPV (66.36%) for detecting normal fields.
  • Patients found PRX-VFT easier and more enjoyable than HFA.

Conclusions:

  • Home-based visual field testing with PRX-VFT is feasible and statistically correlates with in-office HFA testing.
  • PRX-VFT offers a potential method to enhance glaucoma patient care with minimal additional cost.