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 ?
The user is shown a series of 42 optic discs and asked to rate a number of parameters for each, including: disc size and shape, nerve fibre layer loss, presence of haemorrhage and likelihood of glaucoma.
On fundus examination, bilateral swollen optic discs with flame-shaped haemorrhages were apparent (Fig.
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.
With two industrial units located in Manaus and Campinas, Samsung also works with products in the audio and video segments, printers, all-in-ones, optic discs (ODD) and, since last October, in the white line market.
In the meantime, people with sleep apnea need to have their optic discs checked regularly even if their ocular pressure is normal.
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.
b Record IOP, visual fields, photograph optic discs and review in three months
For more than 10 years, optometrists and ophthalmologists have been using the HRT to analyze optic discs, producing a wealth of longitudinal data.
VA is reduced or normal and the optic discs appear severely hyperaemic and moderately elevated with indistinct margins, which may be asymmetric initially.
b) If a patient has normal IOP but has optic discs that are suspicious of glaucoma
However, there is a potential compensating factor because large optic discs tend to have more optic nerve fibres, giving them some nerve fibres in reserve i.
Which one of the following BEST describes the appearances of the optic discs shown in Image B?