optic disc

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Related to Optic nerve head: Optic Nerve Head Drusen

op·tic disc

[TA]
an oval area of the ocular fundus devoid of light receptors where the axons of the retinal ganglion cell converge to form the optic nerve head;

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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Optic disc

op·tic disc

(op'tik disk) [TA]
An oval area of the ocular fundus devoid of light receptors where the axons of the retinal ganglion cells converge to form the optic nerve head.
Synonym(s): discus nervi optici [TA] , blind spot (3) , optic papilla.

optic disc

The small circular area at the back of the eye at which all the nerve fibres from the retina come together to form the optic nerve.
References in periodicals archive ?
The use of OCT has become increasingly common to measure RNFL thickness and optic nerve head parameters in the diagnosis and management of glaucoma.
A comparison of imaging techniques for diagnosing drusen of the optic nerve head.
Ophthalmoscopic evaluation of the optic nerve head.
In the absence of glaucomatous damage to the optic nerve head and a normal visual field, the patient was diagnosed with ocular hypertension.
Optic disc drusen (ODD) are congenital and developmental anomalies characterized by calcific degeneration of the optic nerve head.
Two decades since its introduction, optical coherence tomography (OCT) has become indispensable for research, screening, diagnosing and monitoring diseases of the macula and optic nerve head.
Counts were made horizontally along the full length of the visual streak from the centre of the optic nerve head, extending out towards the far retinal periphery.