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Related Experiment Video

Updated: Apr 19, 2026

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Visual Field Testing on the Envision Head-Mounted Perimeter with and without Gaming Elements.

Emmanouil Tsamis1, Iván Marín-Franch2, William H Swanson3

  • 1Department of Ophthalmology, Columbia University, New York, New York.

Ophthalmology. Glaucoma
|April 17, 2026
PubMed
Summary
This summary is machine-generated.

The new Envision virtual reality (VR) perimeter, including its gaming-based test (ENVg), shows high repeatability and accuracy comparable to the Humphrey Field Analyzer (HFA) for visual field testing.

Keywords:
GamificationGlaucomaHead-mounted perimetryPerimetry

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Area of Science:

  • Ophthalmology
  • Medical Technology
  • Visual Science

Background:

  • Visual field testing is crucial for diagnosing and monitoring glaucoma.
  • Traditional perimetry devices like the Humphrey Field Analyzer (HFA) can be time-consuming and may lead to patient fatigue.
  • Novel approaches using virtual reality (VR) offer potential improvements in patient experience and efficiency.

Purpose of the Study:

  • To evaluate the Envision VR perimeter's test-retest variability and compare its performance against the HFA.
  • To assess the duration and patient preferences for two Envision test modes: standard (ENV) and gaming-based (ENVg).

Main Methods:

  • A two-part clinical trial involving 30 healthy controls and 30 glaucoma patients.
  • Participants underwent testing with Envision (ENV and ENVg) and HFA.
  • Test-retest variability, concordance, test duration, and patient preferences were analyzed.

Main Results:

  • Envision (ENV and ENVg) demonstrated low test-retest variability, comparable to the HFA.
  • Visual field results (TD/MD values) were similar across Envision and HFA.
  • The ENVg mode was strongly preferred by patients for its engagement and shorter duration.

Conclusions:

  • The Envision VR perimeter is a repeatable and accurate alternative to the HFA for visual field testing.
  • The ENVg mode shows potential for enhancing patient compliance and engagement.
  • Envision's portability and consistent test duration make it suitable for diverse clinical settings.