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Comparison of IMO vifa24plus(1-2) and Humphrey Field Analyzer 24-2
Yuki Takagi1,2, Ryo Asano1,3, Kanna Yamashita2
1Department of Ophthalmology, Japan Community Healthcare Organization Chukyo Hospital, Nagoya, Aichi, Japan.
Clinical Ophthalmology (Auckland, N.Z.)
|February 4, 2025
Summary
The IMO vifa 24plus(1-2) visual field test is faster and shows improved fixation compared to the HFA 24-2. Both tests demonstrate high correlation for glaucoma diagnosis.
Area of Science:
- Ophthalmology
- Medical Technology
- Diagnostic Imaging
Background:
- Glaucoma diagnosis relies on accurate visual field testing.
- Traditional Humphrey Field Analyzer (HFA) 24-2 is a standard but can be time-consuming.
- Newer devices like IMO vifa 24plus(1-2) aim to improve efficiency and accuracy.
Purpose of the Study:
- To compare the performance of the IMO vifa 24plus(1-2) and HFA 24-2 visual field tests in glaucoma patients.
- To evaluate differences in test time, fixation accuracy, and diagnostic parameters.
Main Methods:
- 52 glaucoma patients (104 eyes) underwent both HFA 24-2 (SITA Standard) and IMO vifa 24plus(1-2) (AIZE) tests on the same day.
- Statistical analysis included Wilcoxon signed-rank test and Spearman's rank correlation coefficient.
- Key metrics: test time, fixation errors, false positives/negatives, Visual Field Index (VFI), Mean Deviation (MD), and Pattern Standard Deviation (PSD).
Main Results:
- IMO vifa 24plus(1-2) test time was significantly shorter (628.75s vs 716.83s, P<0.001).
- Fixation accuracy was significantly better with IMO vifa 24plus(1-2) (11.09% vs 15.85%, P<0.0001).
- High correlations were observed between HFA 24-2 and IMO vifa 24plus(1-2) for MD (0.938), PSD (0.949), and VFI (0.932), all P<0.001.
Conclusions:
- The IMO vifa 24plus(1-2) offers a faster and more efficient visual field test for glaucoma patients.
- It demonstrates comparable diagnostic accuracy to the HFA 24-2 with improved fixation.
- This suggests IMO vifa 24plus(1-2) is a viable alternative for glaucoma visual field assessment.
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