optic disc

(redirected from optic discs)
Also found in: Thesaurus, Medical.
Related to optic discs: Optic nerve head

optic disc

n
(Anatomy) a small oval-shaped area on the retina marking the site of entrance into the eyeball of the optic nerve. See blind spot1
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.optic disc - the point where the optic nerve enters the retinaoptic disc - the point where the optic nerve enters the retina; not sensitive to light
retina - the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve
point - the precise location of something; a spatially limited location; "she walked to a point where she could survey the whole street"
Translations
point aveugle
References in periodicals archive ?
Many risk factors for NAION have been reported, such as old age, crowded optic discs, hypertension, hyperlipidemia, diabetes mellitus, hypercoagulability, and protein S.
On fundus examination, the optic discs of both eyes were edematous and hyperemic.
Based on these observations, we can conclude that, on one hand, when only a few positive samples (optic discs) are available, SVDD performs better than SVM.
Figure 5 shows the box-and-whisker plot of the common features, and these features appear to help discriminate different optic discs, consistent with previous clinical findings.
Patients with diabetic retinopathy and other diseases that may cause visual field loss or optic disc abnormalities, an unreliable visual field test (>15% false positives or false negatives or >20% fixation losses), history of intraocular surgery or patients for which there was an inability to clinically view or photograph the optic discs due to media opacity or poorly dilating pupils were excluded.
Honey Rose, 35, failed to notice that Vincent Barker had swollen optic discs when she examined him at a branch of Boots in Ipswich.
Honey Rose, 35, didn't notice that Vincent Barker had swollen optic discs when she gave him an eye test at a branch of Boots in Ipswich.
During the trial the prosecution case identified the "implausibility" of Ms Rose's account of events, and challenged the "coincidences" leading up to the defendant being unable to see the optic discs. The jury was told that these were "convenient excuses" to explain what Ms Rose knew was a blatant breach of her duty of care as a practitioner.
The jury was told Rose's failure to detect the swelling of Vinnie's optic discs was a "significant contributory factor" to his death.
Optical Coherence Tomography defects characteristic retianal nerve fibre layer thickness corresponding to band atrophy of the optic discs. Ophthalmology 2004; 111: 2278-2283.
Laser scanning tomography of optic discs of the normal Japanese population in a population-based setting.