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optic British & World English

Relating to the eye or vision

optic cup British & World English

A cup-like outgrowth of the brain of an embryo which develops into the retina

optic angle British & World English

The angle formed by notional lines from the extremities of an object to the eye, or by lines from the eyes to a given point

optic axis British & World English

Another term for optical axis.

optic disc British & World English

The raised disc on the retina at the point of entry of the optic nerve, lacking visual receptors and so creating a blind spot

optic lobe British & World English

A lobe in the midbrain from which the optic nerve partly arises

optic nerve British & World English

Each of the second pair of cranial nerves, transmitting impulses to the brain from the retina at the back of the eye

optic tract British & World English

The pathway between the optic chiasma and the brain

optic neuritis British & World English

Inflammation of an optic nerve, causing blurred vision

optic tectum in tectum British & World English

A rounded swelling (colliculus) forming part of the tectum and containing cells involved in the visual system

chiasma British & World English

The X-shaped structure formed at the point below the brain where the two optic nerves cross over each other

optic chiasma in chiasma British & World English

The X-shaped structure formed at the point below the brain where the two optic nerves cross over each other