Evaluation of a virtual reality-based perimetry device for visual field testing: comparison with the Humphrey visual...

Area of Science:

• Ophthalmology
• Medical Technology
• Visual Science

Background:

• Traditional visual field testing devices are often bulky and resource-intensive.
• Accurate visual field defect monitoring is crucial for managing eye conditions.
• Exploring novel technologies like virtual reality (VR) can address limitations of current methods.

Purpose of the Study:

• To evaluate the agreement between the RetinaLogik RVF100 virtual reality perimetry device and the Humphrey visual field analyzer (HVF).
• To assess the usability of the RVF100 device among Filipino adults.
• To compare the performance metrics and patient experience of the two visual field testing devices.

Main Methods:

• A comparative cross-sectional study involving 46 Filipino adults (76 eyes) from two major eye centers.
• Participants were categorized into normal, glaucoma, or other diagnoses.
• Both RVF100 and HVF used the 30-2 grid; agreement assessed via Bland-Altman and Pearson correlation, with usability via Likert scale.

Main Results:

• The RVF100 demonstrated strong agreement with HVF for mean deviation (MD: r=0.979) and pattern standard deviation (PSD: r=0.837).
• RVF100 showed shorter test durations (5.41 vs 6.96 min) and fewer fixation losses (1.79% vs 5.59%).
• 90% of participants preferred RVF100 for comfort and engagement, despite slightly higher false positive rates.

Conclusions:

• The RetinaLogik RVF100 is a viable alternative to the HVF, offering comparable accuracy.
• The VR perimetry device significantly improves patient comfort and engagement during visual field testing.
• Further research is recommended to validate RVF100's efficacy across diverse populations and disease severities.