Optic
91optic nerve — UK / US noun [countable] Word forms optic nerve : singular optic nerve plural optic nerves medical the large nerve that sends signals relating to sight from the retina in your eye to your brain …
92Optic angle — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where …
93Optic axis — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… …
94Optic axis of a crystal — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… …
95optic chiasma — noun Date: 1872 the X shaped partial decussation on the undersurface of the hypothalamus through which the optic nerves are continuous with the brain called also optic chiasm …
96optic nerve — each optic nerve emerges from the anterior ventral corner of each optic lobe. The nerves cross over beneath the telencephalon …
97optic chiasma — a site at the base of the forebrain where the inner half of the fibers of the left and right optic nerves cross to the opposite side of the brain. Also, optic chiasm. [1870 75] * * * …
98optic chiasm — noun The part of the brain where the optic nerves partially cross. Syn: optic chiasma …
99optic atrophy — degeneration of the optic nerve. It may be secondary to disease within the eye or it may follow damage to the nerve itself resulting from injury or inflammation. It is visible as pallor of the optic nerve as viewed inside the eye with an… …
100optic nerve — the second cranial nerve (II), which is responsible for vision. Each nerve contains about one million fibres that receive information from the rod and cone cells of the retina. It passes into the skull behind the eyeball to reach the optic chiasm …
