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Look at the pattern. Look at the GHT, mean deviation, VFI, and pattern standard deviation. Compare to the previous visual fields. The visual field test is among the most important tests to learn to interpret as you begin your career in ophthalmology. Learn about the top 5 most common fields!
The visual field index is a staging index designed to correspond to ganglion cell loss, that is, 100% represents normal fields and 0% represents blind fields. The mean deviation represents the degree of departure of the whole field's average values, from age-adjusted normal values.
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?
15 lut 2013 · Good interpretation skills start with a methodical assessment of several key plots, graphs and indices. By following a standardized process on all visual field printouts, clinicians can ensure they are accurately diagnosing ocular disease and/or detecting progression.
3 cze 2021 · 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. The index represents the total amount of field loss in a percentage, with 100% meaning a completely normal field and 0% meaning perimetrically blind.
15 cze 2020 · The EyeRounds article “Visual Field Testing: From One Medical Student to Another” has a helpful diagram and explanation of reliability indices, deviation maps and summary outputs. Always interpret VFs systematically to avoid oversight of clinical importance.
VFITM (Visual Field IndexTM) is a staging index, designed to be less affected by cataract and also to provide improved correspondence to ganglion cell loss compared to MD. VFI is approximately 100% in normal fi elds and approaches 0% in perimetrically blind fi elds.
