Endogenous Candida endophthalmitis: Has it been discerned from a cotton wool spot in the retina?Mark P. Breazzano
Long cotton-wool spot-like lesion on disc-side of retinal infarct (white arrowheads) reflects retrograde mitochondrial transport block; no boundary sentinels in fovea nor along superior border of infarct corresponding to temporal horizontal raphe. Putative middle retinal infarction (black arrowhead) ...
For an ON ganglion cell, a spot of light at the cell’s center increases spike rate; a larger spot further increases this response but only up to a certain spot size; this defines the receptive field center. A further increase of spot size decreases the light response. The annulus, whose...
23 in Chapter 1) is small and localized, it appears clinically as a cotton-wool spot. 1. The cotton-wool spot observed clinically (Fig. 11.11; see also Fig. 11.9) is a result of a microinfarct of the nerve fiber layer of the neural retina. 2. The cytoid body, observed ...
Morphological study of the pathogenesis of retinal cotton wool spot. To investigate the true structural changes in retinal cotton wool spots, serial sections of several blocks of retinal corresponding to cotton wool spots ob... M Murata,H Yoshimoto - 《Japanese Journal of Ophthalmology》 被引量: ...
branch retinal artery occlusions. Compromised blood flow to the retina may result in signs ofischemiasuch as cotton-wool spots and hemorrhages. Posture can also affect the ischemia in that vision may be reduced in the upright position, in relation to lying down.31Poor perfusion of thechoroidmay...
2). Patients may have an afferent pupillary defect, a cherry-red spot in the macula with central retinal artery occlusion, and the fundus may show cotton wool spots or cholesterol emboli (Hollenhorst plaque). Sign in to download hi-res image Fig. 2. Fundus in a patient with a branch ...
眼科学教学课件：06 Retina Disease(英文班终版)DISEASESOFRETINA INTRODUCTION Eyeballstructureandretina MACULALUTEA Located3mmtemporallytotheopticpapilla,rightonthevisualaxis.AconcavecentralretinaldepressioniscalledFoveaCentralis maculaluteacontainsonlycones;1conesynapesto1bipolarcell,whichsynapesto1ganglioncell,leading...
Intracellular edema Extracellular edema Hard exudate Cotton-wool spot Leakage of capillary →absorb → deposition of lipid in outer plexiform layer Also called “soft exudation” Precapillary arteriole occlusion→ axoplasmic transport blocked→organelles stack Cotton-wool spot Hard exudate (Hypertensive ...
This is an important advantage because, when an edematous retina is treated with laser, the spot size increases at the level of the retinal pigment epithelium compared with laser spots in a nonedematous retina. The thickened retina then reacts like a prism and spreads out the light, resulting...