Here is a representation of the VF for each eye. Which is OD, and which OS? Remember, VFs are not drawn as if the pt is looking at you; they’re drawn as if you are the pt! Measured in degrees from fixation, how far does the normal VF extend …
Nasal step nerve loss - American Academy of Ophthalmology
2024年11月21日 · In kinetic perimetry the nasal step is defined as a discontinuity or depression in one or more nasal isopters near the horizontal raphe (Humphrey 24-2 program). A nasal step is a relative depression of one horizontal hemifield compared with the other. Damage to superior nerve fibers serving the superotemporal retina bey.
A. 3D visual field test showing inferior nasal step in left eye of ...
An integrated non-invasive visual field test & diagnosis system is presented for the identification, characterization, and automated classification of visual field defects caused by...
Visual field interpretation - Ento Key
2019年2月12日 · The nasal area is the most important region of the midperipheral and peripheral field to test. Depression may be evidenced by hesitancy in patient response when testing this area, as an inward turning of the isopter in manual perimetry, or …
Breaking Down Visual Fields in Glaucoma - Review of Optometry
2021年2月15日 · The article provides a simple framework for the interpretation of the standard glaucoma visual field (VF) printout, presents new testing strategies and discusses detection of progressive field loss in the glaucoma patient.
Demystifying the Visual Field - American Academy of Ophthalmology
2020年6月15日 · 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. Follow these five steps or develop your own approach. 1. Is the test reliable?
How to interpret visual fields: 5 most common patterns
5) Nasal steppe. This is another common glaucomatous field. About 10% of fields show this. Conclusion. Use this order to interpret your Humphrey visual field every time: Confirm it’s the right patient with name and date of birth; Confirm it’s the right/left eye; Look at the reliability indices; Look at the pattern
Visual field testing for glaucoma – a practical guide - PMC
In order to detect glaucomatous field loss, it is important to test for differences in the superior and inferior hemi-fields (above or below the horizontal raphé) and hunt for defects such as a nasal step, which is typical of glaucoma.
Neuro-ophthalmology Illustrated Chapter 3 – Visual Fields
2018年12月19日 · Visual field testing is useful when evaluating patients complaining of visual loss (especially when the cause of visual loss is not obvious after ophthalmic examination) or patients with neurologic disorders that may affect the intracranial visual pathways (e.g., pituitary tumors, strokes involving the posterior circulation, and traumatic brain ...
This article focuses on the interpreta-tion and staging of visual fields as means by which to deter-mine the amount of glaucomatous damage that a patient has suffered. When evaluating fields, I like to follow a checklist that I learned from Donald Budenz, MD, of the Bascom Palmer Eye Institute in Miami. The list is as follows: 1.
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