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Visual fields are one of the primary diagnostic imaging tests used to assess glaucoma and other optic neuropathies. The DICOM Ophthalmic Visual Field (OPV) file format is the gold-standard for saving and communicating visual field results. Table 2. Examples of visual field devices, testing strategies, patterns, and reported metrics.
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.)
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?
Look at the GHT, mean deviation, VFI, and pattern standard deviation; Compare to the previous visual fields
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 ...
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.
3 cze 2021 · Visual Field Index (VFI) One way to monitor progressive visual field loss is the visual field index. The VFI is more sensitive to changes in the central vision correlating with ganglion cell loss.
