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Maximizing the dynamic range of the Humphrey Field Analyzer for blue‐on‐yellow perimetry
Ophthalmic and Physiological Optics, 1993The conditions employed for blue‐on‐yellow perimetry (i.e. a blue stimulus filter and a high luminance yellow background) are in conflict with those that allow a maximum dynamic range. A modification is described for increasing the dynamic range of the Humphrey Field Analyzer (HFA) for blue‐on‐yellow perimetry. The position of the HFA stimulus bulb was
C. Hudson, J. Wild, J. Archer-Hall
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Ophthalmology (Rochester, Minn.), 1993
PURPOSE A new fast strategy for the estimation of threshold, FASTPAC, has been introduced for the Humphrey Field Analyzer. The aim of this study is to evaluate the performance, in a glaucomatous population, of FASTPAC compared with the standard full ...
J. Flanagan, J. Wild, G. Trope
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PURPOSE A new fast strategy for the estimation of threshold, FASTPAC, has been introduced for the Humphrey Field Analyzer. The aim of this study is to evaluate the performance, in a glaucomatous population, of FASTPAC compared with the standard full ...
J. Flanagan, J. Wild, G. Trope
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Relationship Between Foveal Threshold and Visual Acuity Using the Humphrey Visual Field Analyzer
American Journal of Ophthalmology, 2007Evaluate Humphrey visual field (VF) analyzer central 30-2 foveal threshold test for best-corrected visual acuity.Consecutive case series.Both eyes (n = 117) of 59 patients with diseased and healthy eyes presenting for VF analysis were evaluated to determine foveal threshold.
Christina J, Flaxel +2 more
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Development of a Visual Field Screening Test Using a Humphrey Visual Field Analyzer
1985Field test results were compared between the Octopus Perimeter and the Humphrey Automated Field Analyzer. Slopes were noted to be steeper in the superior than the inferior field. The authors found approximately 4 dB higher threshold sensitivity in the Humphrey than in the Octopus. This is probably due to variation in stimulus exposure time, 0.2 seconds
H. Dunbar Hoskins, Carl Migliazzo
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2010
Glaucoma is a disease affecting the optic nerve. Structural as well as functional changes occur as the disease progresses. Glaucomatous optic discs appear with certain patterns of structural damage, and the disease’s main consequence is patient’s visual field damage.
A. Salonikiou +3 more
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Glaucoma is a disease affecting the optic nerve. Structural as well as functional changes occur as the disease progresses. Glaucomatous optic discs appear with certain patterns of structural damage, and the disease’s main consequence is patient’s visual field damage.
A. Salonikiou +3 more
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A system for the analysis of automated visual fields using the Humphrey Visual Field Analyzer
1987Analyzing visual field progression is an important component of glaucoma management. Unfortunately, detecting progression reliably may be difficult. Factors such as short-term (intratest) and long-term (intertest) fluctuation, patient fatigue, patient learning curve, etc., can cause transient visual field changes which may mimic improvement or ...
H. D. Hoskins +3 more
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Journal of Glaucoma
Précis: Protocol 30-2 of Melbourne Rapid Fields, online computer perimetry, provides a portable, reliable, and patient-friendly alternative to Humphrey Field Analyzer 30-2 SITA fast protocol for Japanese with all severity stages of glaucoma patients ...
Kae Sugihara +3 more
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Précis: Protocol 30-2 of Melbourne Rapid Fields, online computer perimetry, provides a portable, reliable, and patient-friendly alternative to Humphrey Field Analyzer 30-2 SITA fast protocol for Japanese with all severity stages of glaucoma patients ...
Kae Sugihara +3 more
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Nippon Ganka Gakkai zasshi, 2011
We examined the correlation between the visual field index (VFI) and mean deviation (MD), as well as the correlation on VFI slope and MD slope.This retrospective study was performed on 105 eyes of 60 patients. All eyes underwent examination by the Humphrey visual field analyzer.
Satoshi, Kimura +3 more
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We examined the correlation between the visual field index (VFI) and mean deviation (MD), as well as the correlation on VFI slope and MD slope.This retrospective study was performed on 105 eyes of 60 patients. All eyes underwent examination by the Humphrey visual field analyzer.
Satoshi, Kimura +3 more
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Quantitative layer‐by‐layer perimetry adapted to the Humphrey Field Analyzer
Acta Ophthalmologica, 1992Abstract Quantitative layer‐by‐layer perimetry is a psychophysical technique believed to assess response characteristics of individual retinal layers. This paper presents a new design of this technique, implemented into the existing hardware environment of the computerized perimeter Humphrey Field Analyzer. The technique was optimized for a more simple,
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