Optic
71optic nerve — Anat. either one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain. See illus. under eye. [1605 15] * * * ▪ anatomy second cranial nerve, which carries sensory nerve impulses… …
72Optic nerve — The optic nerve connects the eye to the brain. The optic nerve carries the impulses formed by the retina, the nerve layer that lines the back of the eye and senses light and creates impulses. These impulses are dispatched through the optic nerve… …
73Optic canal — Bone: Optic foramen 1: Foramen ethmoidale 2: Canalis opticus 3: Fissura orbitalis superior 4: Fossa sacci lacrimalis 5: Sulcus infraorbitalis 6: Fissura orbitalis inferior 7: Foramen infraorbitale …
74optic neuritis — ▪ pathology inflammation of the optic nerve (the second cranial nerve). The inflammation causes a fairly rapid loss of vision in the affected eye (eye, human), a new blind spot (a scotoma, usually in or near the centre of the visual field) …
75optic atrophy — ▪ pathology degeneration of the optic nerve (the second cranial nerve) due to direct or indirect damage to a particular type of retinal (retina) cell, called ganglion cells, whose axonal (axon) projections collectively make up the optic… …
76Optic cup (anatomical) — The optic cup is the white, cup like area in the center of the optic disc.[1] The ratio of the size of the optic cup to the optic disc (or cup to disc ratio) is measured to diagnose glaucoma. References ^ Algazi VR, Keltner JL, Johnson CA… …
77Optic recess — Brain: Optic recess The hypophysis cerebri, in position. Shown in sagittal section. (Optic recess labeled at upper right.) …
78Optic nerve pathways — The left and right branches of the optic nerves join behind the eyes, just in front of the pituitary gland, to form a cross shaped structure called the optic chiasma. Within the optic chiasma, some of the nerve fibers cross. The fibers from the… …
79Optic Nerve (CD-ROM) — For other uses, see Optic Nerve (disambiguation). Optic Nerve Studio album (Charity CD ROM) by Red Hot AIDS Benefit Series Released …
80Optic cup — The white, cup like area in the center of the optic disc. The optic disk is the circular area at the back of the inside of the eye where the optic nerve connects to the retina. * * * optic cup n the optic vesicle after invaginating to form a 2… …
