Conclusion goldmann manual kinetic and humphrey automated static visual field testing are both effective in documenting ptosis associated visual field loss. The abovecited advances can potentially be combined to develop commercially available software that can be used to aid in the detection of visual field progression. Pdf history of perimetry and visual field testing paul. Visual field testing with the humphrey field analyzer.
Considering the visual field to be like a topographic map makes interpretation easier. Visual fields in glaucoma wood, swann and stavrou figure 3. The newest visual field test on the market, uses the latest research to incorporate 242 and 102 patterns in a uniquely fast test. Interpretation of serial visual fields should meet 2 goals. Visual field analyzers expanding your field of vision zeiss. To determine the level of agreement between merged monocular visual field tests the integrated visual field and the binocular esterman visual field test in classifying patients visual status for uk legal fitness to drive. Analysis of reliability indices from humphrey visual field. View and download zeiss humphrey 720i user manual online. A practical approach to measuring the visual field component. Conclusions the current study used a protocol of visual acuity and color vision assessment, funduscopy, and humphrey 102 visual field testing and shows that visual field defects appeared before any corresponding changes in any other tested clinical parameters.
In this analogy, the visual field is an island with a central peak and the altitude correlates with the visual sensitivity in. Longitudinal study of visual field changes determined by. The humphrey uses fixed points of light which are shown at different intensity levels. Early paracentral visual field loss in patients taking. The authors have investigated the reliability of visual field performance by a randomly selected sample of the chronic glaucoma population at an urban tertiary care practice. Find powerpoint presentations and slides using the power of, find free presentations research about visual field ppt. Humphrey automated ptosis fields, as performed in this study, require longer examination times than goldmann manual fields and may be a less sensitive indicator of field loss. As the gold standard of perimetry, humphrey field analyzer 3 hfa3 is your trusted diagnostic partner. As we move up towards the peak of the hill, the visual sensitivity increases and the patient sees smaller and dimmer targets. Perimetry programs which meet these criteria include the humphrey 301, 302, 241, 242, sita fast, and sita standard visual field tests, and the octopus 301 and 302 visual field tests. Hvf sita fast 242 full threshold monocularly and hevf binocularly were performed consecutively on the.
After a bedside visual field examination with waggling fingers and even a red hatpin, you decide that there is an abnormality. And so heres a visual field printout from the humphrey visual field. On the humphrey field analyzer, the visual field index vfia value similar to the mdwas added to the printout several years ago. The r environment is freely available for download in, and. Oct 03, 2015 visual field analysis interpretation 1.
Management of open angle glaucomacasebased clinical studies. Visual field testing and interpretation linkedin slideshare. Retinal nerve fibre arrangement nerve fibres arrangement at optic disc 3. On the humphrey field analyzer shown here, the best threshold. Humphrey field analyzer iii single field analysis a guide to interpretation sample case 1. To define the diagnostic precision of the humphrey matrix 242 test and to determine a clinically applicable cutoff criterion for the inclusion of preperimetric glaucoma.
Humphrey visual field printout interpretation prof. Pdf examining the visual fields is an integral part of any ophthalmic evaluation. Interpretation of the humphrey matrix 242 test in the. The authors have investigated the reliability of visual field performance by a randomly selected sample of the chronic glaucoma population at. It is therefore the best option to test visual aptitudes for drivers and handicapped subjects. An analogy commonly used to conceptualize these diagrams is the island of vision. Nov 18, 2011 to analyze humphrey visual field hvf findings in hydroxychloroquine hcq retinal toxicity.
Visual field assessment is extremely important in glaucoma management, but interpretation is affected by the quality of the patients performance. View and download powerpoint presentations on visual field ppt. Evaluating the accuracy of the visual field index for the humphrey visual field analyzer in patients with mild to moderate glaucoma. A tool for analysis and visualization of visual fields journal of vision. Sep 12, 2016 and thats part of the art of interpreting these automated visual fields.
Enables analysis of hfa data within the forum viewer. May 06, 2015 visual fields and humphrey visual field interpretation as seen in bcsc chapter 3 by dr. Humphrey field analyzer 3 measuring instruments pdf manual download. The national coverage determination for computer enhanced perimetry, ncd 80. Hardware and software options, setting up a perimetry system, and making efficient use of the system are all discussed. This second edition not only provides eyecare professionals with fundamental information on performing automated perimetry, but also includes sections on the humphrey field analyzer ii. View and download zeiss humphrey field analyzer 3 instructions for use manual online. Visual field results humphrey 242 using the sitastandard strategy for a patient with more advanced glaucomatous loss than that depicted in figures 1 and 2. Imagine you are assessing a patient with visual difficulties or optic disc swelling.
Aims to clarify the anatomical relation between the optic disc and temporal raphe and to examine how these are related to test points in the 102 visual field test pattern. Hvf tests were interpreted retrospectively in this observational case series of 15 patients with hcq. To define agerelated changes in the visual field by comparing standard central and unique peripheral visual field measurements in healthy volunteers. The visual field the visual field can be compared with a topographic map of an island. And thats part of the art of interpreting these automated visual fields. Reporting of visual fields should always include the actual thresholds determined for each field point and the number of false positives, false negatives and. In a single center, retrospective, crosssectional, observational study, 20 volunteers with no retinal diseases or risk factors, ranging in age between 30 and 94 years four age groups. The purpose of this study was to compare the monocular humphrey visual field hvf with the binocular humphrey esterman visual field hevf for determining whether subjects suffering from glaucoma fulfilled the new medical requirements for possession of a swedish drivers license. In this analogy, the visual field is an island with a central peak and the altitude correlates with the visual sensitivity in a given location. Aug 02, 2012 the purpose of this study was the comparison of the monocular humphrey visual field hvf and the binocular humphrey esterman visual field hevf for detection of visual field defects in subjects with glaucoma for then determining whether they fulfilled the new medical requirements for possession of a swedish drivers license. A comparison of manual kinetic and automated static perimetry. The standard of care to screen, monitor, and manage eye disease. Visual field analysisinterpretation linkedin slideshare. Hfa3 delivers the interactive analysis you need, when and where you need it.
To analyze humphrey visual field hvf findings in hydroxychloroquine hcq retinal toxicity. It is presently, thanks to its large viewing field camera, the only perimeter capable of true binocular exams. Medicare reimbursement for visual field testing zeiss. The fovea is the area of greatest visual sensitivity, where the cone photoreceptor density is at its highest. Estimating the reliability of glaucomatous visual field for. The interpretation of results of 102 visual fields should. It is a covered service when used in assessing visual fields in patients with glaucoma or other neuro. The result is increased sensitivity to shallow defects in the central ten degrees of the visual field commonly missed by 242 patterns. Visual fields and humphrey visual field interpretation as seen in bcsc chapter 3 by dr.
Zeiss humphrey 720i user manual pdf download manualslib. Eyes with preperimetric glaucoma 99 eyes were defined as having normal standard automated perimetry sap results and a glaucomatous optic nerve head, along with one or more optical coherence tomography oct parameters. Brief historical overview on visual fields and perimetry by ca johnson, m wall, and hs thompson. Hvf tests were interpreted retrospectively in this. Visual fields and humphrey visual field interpretation as.
Administering and interpreting visual fields in glaucoma danica j. The results of the analyser identify the type of vision defect. How do you interpret a 242 humphrey visual field printout. Humphrey visual field hvf computerized automated perimetry measures visual field with stationary test object that is increased in intensity from below threshold until perceived by the patient threshold light intensity at which stimulus can be seen 50% of the time. Comparison of the monocular humphrey visual field and the. Traquair proposed the concept of an island of vision surrounded by a sea of darkness fig. The vfi is a staging index for the total amount of field loss. The humphrey visual field is a special automated procedure used to perform perimetry, a test that measures the entire area of peripheral vision that can be seen while the eye is focused on a central point. Visual field testing with the humphrey field analyzer, second edition has been completely updated to include many new innovations in visual field testing.
A visual field boundary overlay was used to assess detection potential of humphrey 850 kinetic perimetry using i4e and i2e targets in results of known abnormal visual fields. How to interpret visual fields practical neurology. The visual field index vfi was designed to be a more accurate summary measurement of the visual field status than the mean deviation. Here, well only talk about the humphrey visual field perimeter, which is used for 99% of visual field tests. Visual field test an overview sciencedirect topics. The humphrey field analyser is by far the most commonly used for auto. Perimetry and visual field testing are important diagnostic tools for detecting, evaluating and monitoring ocular and neurologic disorders affecting the visual system. Interpretation of visual field data requires a large amount of data manipulation and. Eyes with preperimetric glaucoma 99 eyes were defined as having normal standard automated perimetry sap results and a glaucomatous optic nerve head, along with one or more optical coherence tomography oct. Humphrey 720i measuring instruments pdf manual download.
The final result of a gvf is a diagram similar to a topographic map. And so here is a printout of a visual field, and im gonna i can see my video here of myself. Its an automated, static perimeter unlike goldmann kinetic perimetry which requires a human operator, and uses a moving target. The aim of this study is to determine the progress of the visual field defects obtained by the humphrey field analyzer 102 program hfa 102 in patients with retinitis pigmentosa rp.
How to understand it how to interpret visual fields. Peripheral visual field testing rarely necessary or useful. To examine the link between these two tests and the useful field of view ufov test, a test which is considered to be a surrogate for the visual capability for. Marrelli, od, faao university of houston college of optometry visual fields aka perimetry the measurement of the boundaries of the field of vision and of retinal sensitivity, both centrally and peripherally. Humphrey field test the same principles apply to the humphrey test as to the goldmann test, but instead with static light stimulation.
After requesting quantified visual field tests, the patient returns with a black and white printout with numbers eg, humphrey fields or coloured lines on a sheet eg, goldmann fields. Pdf humphrey visual field analysis, visual field defects. Humphrey visual field findings in hydroxychloroquine toxicity. It is designed for use as a visual field screener and as a threshold perimeter for immediate reexamination of any abnormal findings.
It covers the entire visual field, up to 105 degrees on the temporal side ultra wide field perimetry. Thus fdt is ideal for clinics desiring to identify patients in need of ophthalmological referral. Humphrey field analyser hfa, is a tool for measuring the human visual field, it is used by optometrists, orthoptists and ophthalmologists, particularly for detecting monocular visual field. Visual fields interpretation in glaucoma community eye health. A complete and comprehensive approach to performing automated perimetry with the humphrey field analyzer is presented. There is a clear inferior nasal step, which respects the horizontal midline. To know humphrey visual field analyser to know about various types of perimetry to. Pdf autoperimetry is an essential investigation for glaucoma management, which. Therefore, it provides information regarding the location of any disease processes or. Humphrey visual field analysis confirmed the prominent temporal hemifield loss in the right eye, and inferior altitudinal field loss in the left eye figure 1. The purpose of this study was the comparison of the monocular humphrey visual field hvf and the binocular humphrey esterman visual field hevf for detection of visual field defects in subjects with glaucoma for then determining whether they fulfilled the new medical requirements for possession of a swedish drivers license. Humphrey visual field analysis, visual field defects, and ophthalmic findings in patients with macro pituitary adenoma article pdf available in saudi medical journal 289. A number of methods can be employed to analyze a series of visual fields for glaucomatous change.
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