نتایج جستجو برای: nerve fiber layer
تعداد نتایج: 550522 فیلتر نتایج به سال:
We developed a mathematical model wherein retinal nerve fiber trajectories can be described and the corresponding inter-subject variability analyzed. The model was based on traced nerve fiber bundle trajectories extracted from 55 fundus photographs of 55 human subjects. The model resembled the typical retinal nerve fiber layer course within 20 degrees eccentricity. Depending on the location of ...
The intraretinal path taken by fibers of the arcuate bundle was studied in four Rhesus monkeys. The fibers incorporated radioactivity subsequent to the injection of a small amount of Hproline into the retina. The classical arciform projection was described and it was noted that near the disc, where the nerve-fiber layer contained many unlabeled fibers from the region of the area centralis, the ...
OBJECTIVE To assess optical coherence tomography in differentiating optic disc edema (ODE) due to papilledema and other optic neuropathies from optic nerve head drusen (ONHD). METHODS Optical coherence tomographic images from 60 subjects (20 with ODE, 20 with ONHD, and 20 control subjects) were assessed qualitatively and quantitatively. Qualitative criteria for ODE included an elevated optic ...
AIM To evaluate structural changes in the retina and their correlation with visual dysfunction in patients with multiple sclerosis. METHODS Patients with multiple sclerosis (n = 84) and healthy controls (n = 84) underwent structural evaluation of the retinal nerve fiber layer, and macular and ganglion cell layer thicknesses using Spectral domain optical coherence tomography (SD-OCT). All subj...
OBJECTIVE To assess the relationship between in vivo measurements of optic disc topography and histomorphometric measurements of optic nerve fiber number in glaucoma. METHODS Both eyes of 10 monkeys (Macaca fascicularis) with laser-induced glaucoma in the right eye were studied. Optic disc topography was measured in vivo with a confocal scanning laser ophthalmoscope. Histomorphometry was perf...
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