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The computerized 3-D imagery possible with the newer spectral domain optical coherence tomography generates images showing elevation of the optic nerve head in a new and interesting format.
They produce elevation of the disc and blurring of its margins, similar to optic nerve head edema. They are bilateral but asymmetric in 66% to 78% of cases, [1,2,3] ...
It appears as a sharply defined light-colored round region, slightly to the nasal side of the center of the retina, and is also called the optic nerve head. Swelling of this disc may occur due to ...
In an acute presentation, an ischemic event involving the anterior portion of the optic nerve head leads to unilateral optic disc edema. Disc hemorrhaging typically accompanies the edema.
A disc at risk is essential for the development of nonarteritic anterior ION . 7–9 Other optic-nerve anomalies resulting in crowding of the optic-nerve head, such as optic-nerve drusen and ...
Papilledema refers to the swelling of the optic nerve due to increased pressure inside the cranium. There are various possible causes, including a mass, a hemorrhage, and meningitis.
Modern optic nerve head (ONH) analysers can now give detailed information about the structure of the ONH. However, stereoscopic optic disc pictures (SODP) are still important in glaucoma ...
Randhawa, S, Lee, AG. Medical mystery: cloud surrounding the optic disks. N Engl J Med 2008;358:69-69 ...
A noncontrast head CT scan was performed in the emergency room. It revealed a small calcification in the right globe near the optic nerve, representing a small optic nerve drusen. A less well ...
The optic disc, also known as the optic nerve head, forms a slightly raised spot on the nasal side of the retina. Here, there are no photoreceptors, hence it is known as the blind spot of the eye ...
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