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Agreement Between Virtual Reality Perimetry and Static Automated Perimetry in Various Neuro-Ophthalmological
Akshay Badakere1, Amir Ali Mir2, Rahul Negi2
1Consultant Ophthalmologist, Child Sight Institute, Jasti V Ramanamma Children's Eye Care Centre, L V Prasad Eye Institute, Hyderabad.
Neuro-Ophthalmology (Aeolus Press)
|December 22, 2023
Summary
Virtual reality perimetry (VRP) shows good agreement with static automated perimetry (SAP) for diagnosing visual field defects in neuro-ophthalmology. This technology is promising for detecting conditions like hemianopic and altitudinal defects.
Area of Science:
- Ophthalmology
- Neuroscience
- Medical Technology
Background:
- Static automated perimetry (SAP) is the standard for visual field testing.
- Virtual reality perimetry (VRP) offers a potential alternative with advanced technology.
- Neuro-ophthalmological conditions present complex visual field defects.
Purpose of the Study:
- To compare the diagnostic agreement between VRP and SAP.
- To evaluate VRP's accuracy in various neuro-ophthalmological conditions.
- To assess inter-examiner reliability for both perimetry methods.
Main Methods:
- Retrospective analysis of 160 eyes from 148 patients tested with VRP and SAP.
- Comparison of visual field defect interpretations by two neuro-ophthalmologists.
- Calculation of percent agreement for different visual field defect types.
Main Results:
- Good agreement between VRP and SAP for bitemporal (93.8%), hemianopic (90.8%), and generalized defects (86.4%).
- Acceptable agreement for altitudinal defects (79.4%), central scotomas; not acceptable for enlarged blind spots.
- High inter-examiner agreement for most defect types.
Conclusions:
- VRP demonstrates good overall agreement with SAP in neuro-ophthalmology.
- VRP is particularly effective for detecting hemianopic, altitudinal, and generalized visual field defects.
- Further research with larger studies is recommended for real-world application.
