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15 cze 2020 · Look for a cluster of two or more defects, and look at the summary data, including mean deviation, pattern standard deviation, visual field index (VFI) and the glaucoma hemifield test. (EyeWiki does a great job of simplifying this.) It’s also important to identify any VF correlation with a structural defect (on the opposite side of the nerve).
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Visual field index (VFI). This index expresses the visual field status as a percent of a normal age-adjusted visual field. Greater weight is given to points closer to fixation to adjust for gangion cell density and visual function. The index may also be less sensitive to cataract and media changes. Mean deviation (see section 4.3). The overall ...
Look at the GHT, mean deviation, VFI, and pattern standard deviation; Compare to the previous visual fields
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10 maj 2011 · This study evaluated the capacity of the Visual Field Index (VFI) to provide information on perimetric glaucomatous progression. The authors conclude that VFI may have greater utility for determining stability rather than for detecting glaucomatous progression.
At the May 2009 annual meeting of the Association for Research in Vision and Ophthalmology in Ft. Lauderdale, Fla., several research groups investigated the clinical utility of the new parameter—the visual field index (VFI)—to detect progression of the visual field over time. What is the VFI?
29 paź 2016 · Some novel ideas about improving visual field (VF) testing are emerging in the glaucoma research community, and even though more work is needed, they are inspiring new ways of thinking. “The more damage you have, the more variable the data get.