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Cotton wool spots present as opaque fluffy white spots, sometimes with feather-like edges, on the retina when seen on a funduscopic exam. [1] [2] These opaque white areas are typically asymptomatic, but may cause some vision loss due to the underlying disease state. [5]
Common causes of scotomas include demyelinating disease such as multiple sclerosis (retrobulbar neuritis), damage to nerve fiber layer in the retina (seen as cotton wool spots [3]) due to hypertension, toxic substances such as methyl alcohol, ethambutol and quinine, nutritional deficiencies, vascular blockages either in the retina or in the optic nerve, stroke or other brain injury, and ...
Patients with branch retinal vein occlusion usually have a sudden onset of blurred vision or a central visual field defect. The eye examination findings of acute branch retinal vein occlusion include superficial hemorrhages, retinal edema, and often cotton-wool spots in a sector of retina drained by the affected vein.
Advanced retinopathy lesions, such as microaneurysms, blot hemorrhages and/or flame hemorrhages, ischemic changes (e.g. "cotton wool spots"), hard exudates and in severe cases swelling of the optic disc (optic disc edema), a ring of exudates around the retina called a "macular star" and visual acuity loss, typically due to macular involvement.
3. Acute moist dermatitis (hot spots) Acute moist dermatitis, also known as 'hot spots', causes patches of moist, inflamed skin, typically found on the face or neck but can appear anywhere on the ...
Fundus examination revealed choroidal folds inferior to the optic disc and a single cotton-wool spot in the inferior arcade of the right eye (white arrow). The second case of visual changes during long-duration spaceflight on board the ISS was reported approximately 3 months after launch when the astronaut noticed that he could now only see ...
Most fibers (cotton, linen, polyester, nylon, acrylic, spandex) can handle the typical US hot (50°C/122°F) water temperature setting, but be sure to wash wool and silk garments in cold water, if ...
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