Results 161 to 170 of about 36,763 (214)
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Myelinated Nerve Fibers and Severe Myopia
American Journal of Ophthalmology, 1976Two 4-year-old boys, one white and one black, had unilateral extensive myelinization of retinal nerve fibers associated with severe myopia, esotropia, and amblyopia. The finding of unilateral extensive myelinization of the nerve head and retinal fibers in a child may indicate a potentially remediable anisometropic amblyopia.
Peter M. Holland, Banks Anderson
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Preservation and Staining of Myelinated Nerve Fibers
Methods, 1998Six procedures are given for preservation of myelinated nerve fibers for light or electron microscopic studies. These procedures fall into two main categories: those with and those without aldehyde fixation. Essentially different effects are attained by application of tannic acid, saline, microwave or conventional heating, or a decreased temperature ...
S. Ploeger +2 more
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The beaded form of myelinated nerve fibers
Neuroscience, 1994When the nerves are lightly stretched and fixed by freeze-substitution, their fibers show the form-change termed "beading" which consists of a series of undulating constrictions and swellings in the internodes. This form change has not ordinarily been seen in chemically fixed nerves, or when it has, it has been ascribed to a pathological change or an ...
Ralph A. Jersild +3 more
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Retinal Telangiectasias Associated With Myelinated Nerve Fibers
JAMA Ophthalmology, 2020This case report describes a man with sectorial myelinated fibers with associated multiple retinal vascular telangiectasias and retinoschisis in his right eye.
Borrelli E., Bandello F., Querques G.
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Progression of myelinated retinal nerve fibers
American Journal of Ophthalmology, 1999To present a case demonstrating progression of retinal nerve fiber myelin and to suggest that myelinated retinal nerve fibers be considered among the peripapillary choristomas.Case report. A 46-year-old woman demonstrated progression of myelinated retinal nerve fibers and associated retinal vascular anomalies.Myelinated retinal nerve fibers can be ...
Chris J Barry +2 more
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1993
Myelination proceeds in an orderly fashion. The last elements to receive a myelin sheath are the chiasm and optic nerve. Myelinated nerve fibers in the retina most often occur in men and are seen in 0.3–1.0% of individuals. The eyes are otherwise normal.
Alan H. Friedman, Juan Orellana
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Myelination proceeds in an orderly fashion. The last elements to receive a myelin sheath are the chiasm and optic nerve. Myelinated nerve fibers in the retina most often occur in men and are seen in 0.3–1.0% of individuals. The eyes are otherwise normal.
Alan H. Friedman, Juan Orellana
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Beading of myelinated nerve fibers
Experimental Neurology, 1965Abstract The phenomena of beading upon stretching was studied in nerve fibers of freeze-substituted nerves. Beading appears rapidly along the length of the mammalian nerve. Nerve fibers of frogs kept at low temperatures have a crenated shape in cross section and show wrinkling in longitudinal section, but no beading is produced upon stretching them ...
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Acquired and Progressive Myelinated Nerve Fibers
Archives of Ophthalmology, 1985Follow-up data are presented on a previously described child in whom myelinated nerve fibers presumably developed 5 1/2 months after an optic nerve decompression. During the subsequent five years, the myelinated nerve fibers have progressively enlarged. Five years after surgery, myelinated nerve fibers appeared in the patient's fellow eye.
Aazy A. Aaby, Burton J. Kushner
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The myelinated fibers in the aortic nerve of the swine
The Anatomical Record, 1967AbstractThe aortic nerves of 24 Chester White swine were identified electrophysiologically by the synchronization of the recorded action potentials with the cardiac cycle; and the occurrence of the maximum firing rates observed on the oscilloscope during systole. The aortic nerve, thus identified, was traced to the aortic arch in two preparations.
M. W. Stromberg, E. M. Schmidt
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Subtotal Aplasia of Myelinated Nerve Fibers in the Sural Nerve*
Neuropediatrics, 1993Thus far, only very few cases with neuronal maldevelopment in the peripheral nervous system have been reported (Table 1). The present sporadic case manifested itself with peripheral sensorimotor polyneuropathy in early infancy. Clinical findings included pareses and hypaesthesia of distal extremities and severely reduced nerve conduction velocities ...
Wilhelm Mortier +3 more
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