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To understand the diseases and conditions that can affect the eye, it helps to understand basic eye anatomy. Here is a tour of the eye starting from the outside, going in through the front and working to the back.
Tubes (arteries and veins) that carry blood to and from the eye. Caruncle. A small, red portion of the corner of the eye that contains modified sebaceous and sweat glands.
Learning about the eye’s anatomy helps you understand each task’s complex working mechanism and unique structure. Any defects in the eye structures are likely to affect your ability to see and overall eye health. For this reason, it’s important to take good care of your eyes.
Become a master of the eye anatomy with this specially designed quiz which covers bones and muscles of the orbit and eye anatomy (including neurovasculature)!
The cornea serves as a protective covering for the front of the eye and also helps focus light on the retina at the back of the eye. After passing through the cornea, light travels through the pupil (the black dot in the middle of the eye).
Click on various parts of our human eye illustration for descriptions of the eye anatomy; read an article about how vision works. Find out why the human eye has been called the most complex organ in our body.
6 min read. Your eye is a slightly asymmetrical globe, about an inch in diameter. The front part (what you see in the mirror) includes: Iris: the colored part. Cornea: a clear dome over the iris....
The transparent structure inside the eye that focuses light rays onto the retina, much like the lens in a camera. Lower eyelid. Skin that covers the lower part of the eye, including the cornea, when closed.
The orbit is formed by the cheekbone, the forehead, the temple, and the side of the nose. The eye is cushioned within the orbit by pads of fat. In addition to the eyeball itself, the orbit contains the muscles that move the eye, blood vessels, and nerves.
The eye is kept moist by secretions of the lacrimal glands (tear glands). These almond-shaped glands under the upper lids extend inward from the outer corner of each eye. Each gland has two portions. One portion is in a shallow depression in the part of the eye socket formed by the frontal bone.