Eye Anatomy: The Parts of the Eye
The transparent layer forms the front of the eye covers the iris, pupil, and anterior chamber, and provides most of an eye’s optical power.
The central point in the macula produces the sharpest vision. Contains a high concentration of cones and no retinal blood vessels.
If you are studying the anatomy of the eye, the Iris is the pigmented tissue lying behind the cornea that gives color to the eye (e.g. blue eyes) and controls the amount of light entering the eye by varying the size of the pupillary opening. Most forward extension of the middle (uveal) layer of the eye; separates the anterior chamber from the posterior chamber.
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The natural lens of the eye. Transparent, biconvex intraocular tissue helps bring rays of light to focus on the retina. Suspended by fine ligaments (zonules) attached between ciliary processes.
The central area of the retina surrounding the fovea; an area of acute central vision.
Watch this video to learn more about the eye anatomy:
The second cranial nerve. The next component of the eye to be familiar with when you are analyzing eye anatomy is the optic nerve. The largest sensory nerve of the eye; carries impulses for sight from the retina to the brain. Composed of retinal nerve fibers that exit the eyeball through the optic disc, traverse the orbit, and pass through the optic foramen into the cranial cavity, where they meet fibers from the other optic nerve at the optic chiasm.
The variable-sized black circular opening in the center of the iris regulates the amount of light that enters the eye.
Light-sensitive nerve tissue in the eye converts images from the eye’s optical system into electrical impulses that are sent along the optic nerve to the brain, to interpret as vision. Forms a thin membranous lining of the rear two-thirds of the globe; consists of layers that include rods and cones; bipolar, amacrine, ganglion, horizontal, and Muller cells; and all interconnection nerve fibers.
Transparent, colorless gelatinous mass that fills the rear two-thirds of the eyeball, between the lens and the retina.
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