Results 301 to 310 of about 120,001 (353)
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Computerized enhancement of retinal nerve fiber layer
Acta Ophthalmologica, 1986Abstract We investigated a number of image processing techniques for enhancing the retinal nerve fiber layer (NFL) in fundus photographs taken with red‐free light. Wedge‐type defects within the NFL were enhanced best by contrast enhancement algorithms such as histogram modification and extremum sharpening.
E, Peli, T R, Hedges, B, Schwartz
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Nerve Fiber Layer Infarcts in Thiamine Deficiency
Journal of Neuro-Ophthalmology, 2015Thiamine deficiency classically manifests as the triad of Wernicke encephalopathy: acute confusional state, ataxic gait, and ocular motor dysfunction. However, most patients do no present with this classic triad. Optic neuropathy in thiamine deficiency is a rare manifestation and is usually associated with fundus appearances of optic disc swelling or ...
Paul I, Sia +3 more
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Evaluation of the retinal nerve fiber layer
Survey of Ophthalmology, 1996In normal eyes, the retinal nerve fiber layer (RNFL) is usually best visible in the inferior temporal part of the fundus, followed by the superior temporal region, the nasal superior region and the nasal inferior region. This distribution correlates with the configuration of the neuroretinal rim, the diameter of the retinal arterioles, the location of ...
J B, Jonas, A, Dichtl
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Polarimetry of the retinal nerve fiber layer
Current Opinion in Ophthalmology, 1996Retinal nerve fiber layer (RNFL) examination is a useful tool in the diagnosis and follow-up of glaucoma. Because the clinical techniques to date have been subjective, there is a definitive need to develop instruments that are capable of making accurate and reproducible measurements of the RNFL.
A, Tuulonen, P J, Airaksinen
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Retinal nerve fiber layer in multiple sclerosis
Acta Ophthalmologica, 1990Abstract. To evaluate the usefulness of the retinal nerve fiber layer (RNFL) appearance in estimation of optic nerve damage in MS, we examined 20 patients with definite MS and 20 normal control patients. Photographs of the RNFL in 80 eyes were classified as normal or abnormal by two examiners working independently.
P, Elbøl, K, Work
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Retinal Nerve Fiber Layer Measured by Heidelberg Retina Tomograph and Nerve Fiber Analyzer
European Journal of Ophthalmology, 2005Purpose To compare retinal nerve fiber layer (RNFL) thickness measured by Heidelberg retina tomograph (HRT) and nerve fiber analyzer (GDx). Methods Twenty eyes of 20 consecutive healthy subjects were recruited for this study. Each subject had a normal visual field and a normal optic nerve head, which was assessed by slit-lamp biomicroscopy using a 90 ...
IESTER, MICHELE, MERMOUD A.
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Optic Nerve Head and Nerve Fiber Layer in Alzheimer's Disease
Archives of Ophthalmology, 1991We compared (1) the differences in the retinal nerve fiber layer between 26 patients with Alzheimer's disease and 30 age- and race-matched normal controls with use of blue-light high-resolution photography, (2) the differences in disc pallor between 30 patients with Alzheimer's disease and 32 controls with use of a boundary-tracking program and fundus ...
C S, Tsai +6 more
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Retinal nerve fiber layer thickness map
SPIE Proceedings, 2006Spectral-Domain Optical Coherence Tomography (SDOCT) allows for in-vivo video-rate investigation of biomedical tissue depth structure with the purpose of non-invasive optical diagnostics. In ophthalmic applications, it has been suggested that Optical Coherence Tomography (OCT) can be used for diagnosis of glaucoma by measuring the thickness of ...
Mircea Mujat +6 more
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Myelinated Retinal Nerve Fiber Layer
Mayo Clinic Proceedings, 2022Angelo P. Tanna, Kaitlyn Veto
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Retinal nerve fiber layer thickness in human eyes
Graefe's Archive for Clinical and Experimental Ophthalmology, 1999A study was carried out to measure the thickness of the retinal nerve fiber layer (RNFL) at the optic disc border.RNFL thickness at the optic disc border was histomorphometrically measured on histological sections of 22 human eyes with normal optic nerves and 21 human eyes with absolute secondary angle-closure glaucoma. For three eyes with normal optic
A, Dichtl, J B, Jonas, G O, Naumann
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