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Development of a Virtual Reality Assessment of Everyday Living Skills
Published on: April 23, 2014
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Assessment of Remote Training, At-Home Testing, and Test-Retest Variability of a Novel Test for Clustered Virtual
Zer Keen Chia1, Alan W Kong1, Marcus L Turner1
1Department of Ophthalmology, UCSF School of Medicine, San Francisco, California.
Ophthalmology. Glaucoma
|August 24, 2023
Summary
Remote virtual reality visual field testing is feasible for glaucoma patients at home. The Vivid Vision Perimetry (VVP-10) test showed low variability and good correlation with standard perimetry, suggesting a viable supplement for visual function assessment.
Area of Science:
- Ophthalmology
- Medical Technology
- Digital Health
Background:
- Glaucoma management requires regular visual field (VF) testing.
- Conventional perimetry can be time-consuming and requires clinic visits.
- Home-based testing solutions are needed to improve patient convenience and adherence.
Purpose of the Study:
- To evaluate the feasibility of remote training for glaucoma patients to perform virtual reality (VR) visual field testing at home.
- To analyze the test-retest variability of the Vivid Vision Perimetry (VVP-10) test.
- To assess the concordance of VVP-10 results with conventional perimetry (Humphrey Field Analyzer - HFA).
Main Methods:
- A cross-sectional study involving 21 glaucoma patients.
- Subjects received remote training via video conferencing for the VVP-10 test.
- Ten sessions of VVP-10 were completed at home over 14 days.
- Feasibility was measured by successful independent completion of the test series.
- Intraclass correlation coefficient (ICC) and standard error (SE) assessed test-retest variability.
- Spearman correlation assessed concordance with HFA mean sensitivity (MS).
Main Results:
- Ninety-five percent (20/21) of subjects successfully completed the VVP-10 test series after one remote training session.
- High test-retest reliability was observed with an ICC of 0.95.
- Low mean SE of 0.012 (fraction seen) indicated consistent results.
- Strong correlation was found between VVP-10 and HFA MS (Spearman r = 0.87 for moderate-to-advanced glaucoma eyes).
Conclusions:
- Remote training and at-home execution of the VVP-10 test are feasible for glaucoma patients.
- The VVP-10 demonstrated low test-retest variability in a home setting.
- VVP-10 shows potential as a viable supplement or alternative to in-clinic perimetry for glaucoma visual function assessment.
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