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optic disc
(redirected from optic discs)

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optic disc,
the small blind spot on the surface of the retina, located about 3 mm to the nasal side of the macula. It is the point where the fibers of the retina leave the eye and become part of the optic nerve. It is the only part of the retina that is insensitive to light. At its center the porus opticus marks the point of entrance of the central artery of the retina. Also called
Usage notes: (informal)
blind spot, discus nervi optici.


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Geriatrics For patients suffering from chronic headaches, the finding of swollen optic discs, or papilledma, is a key sign that indicates raised intracranial pressure (ICP) which may be due to hydrocephalus, benign intracranial hypertension, or a brain tumor, among other conditions.
Opthalmoscopes Seeing the Light! by Gary Gordon / Business community
We observed the patient in June 2002 and found a bilateral paleness of optic discs and the inability to count fingers with either eye; at that time, the patient complained of disturbing photopsias.
Grand Rounds: could occupational exposure to n-Hexane and other ... by Mattioli, Stefano / Environmental Health Perspectives
In this study, the HRT's method of analyzing optic discs was shown to be a powerful and accurate predictor of glaucoma in patients with elevated eye pressure.
Multicenter Study Establishes Heidelberg Retina Tomograph As Proven ... by Business Wire
 
 
 
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