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Comparison of Visual Field Test Measurements With a Novel Approach on a Wearable Headset to Standard Automated
Catherine Johnson1, Ahmed Sayed2,3,4, John McSoley1
1Bascom Palmer Eye Institute, University of Miami Miller School of Medicine.
Journal of Glaucoma
|June 13, 2023
Summary
A new portable headset visual field test shows excellent agreement with the standard Humphrey SITA Standard test for glaucoma patients. This wearable technology offers a comparable method for visual field assessment.
Area of Science:
- Ophthalmology
- Medical Technology
- Visual Science
Background:
- Standard automated perimetry is crucial for diagnosing and monitoring glaucoma.
- Novel wearable technologies offer potential for more accessible visual field testing.
Purpose of the Study:
- To assess the inter-test comparability of a novel augmented-reality headset visual field application against the Humphrey field analyzer SITA Standard.
- To determine the correlation in visual field testing results between a wearable headset device and standard automated perimetry.
Main Methods:
- Visual field testing was performed on 89 eyes (18 normal, 71 glaucoma) using the re:Imagine Strategy (Heru, Inc.) on a portable headset and the Humphrey field analyzer SITA Standard 24-2 program.
- Outcome measures included Mean Sensitivity (MS) and Mean Deviation (MD), analyzed via linear regression, Intraclass Correlation Coefficient (ICC), and Bland-Altman analysis.
Main Results:
- Excellent correlation was found between the Heru headset and Humphrey analyzer for both MS (Pearson r=0.94) and MD (Pearson r=0.95).
- High concordance was demonstrated by ICC values (MS=0.95, MD=0.94).
- Bland-Altman analysis revealed small mean differences (MS=1.15 dB, MD=1.06 dB) between the devices.
Conclusions:
- The Heru visual field test demonstrates strong correlation and concordance with the Humphrey SITA Standard test.
- This novel wearable technology provides a reliable alternative for visual field testing in both normal and glaucomatous eyes.
