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4 days ago · Human eye, specialized sense organ in humans that is capable of receiving visual images, which are relayed to the brain. The anatomy of the eye includes auxiliary structures, such as the bony eye socket and extraocular muscles, as well as the structures of the eye itself, such as the lens and the retina.
The human eye is an organ of the sensory nervous system that reacts to visible light and allows the use of visual information for various purposes including seeing things, keeping balance, and maintaining circadian rhythm. Arizona Eye Model. "A" is accommodation in diopters. The eye can be considered as a living optical device.
Apr 29, 2023 · The eye sits in a protective bony socket called the orbit. Six extraocular muscles in the orbit are attached to the eye. These muscles move the eye up and down, side to side, and rotate the eye. The extraocular muscles are attached to the white part of the eye called the sclera.
- Conjunctiva. The conjunctiva is the membrane covering the sclera (white portion of your eye). The conjunctiva also covers the interior of your eyelids.
- Sclera. The sclera is sometimes known as the “whites” of the eye, covering more than 80% of the eyeball’s surface.2 The sclera has a smooth and white exterior but is brown on the inside.
- lris. The iris is the colored part of the eye and is unique to each person. This structure is located in the front of the eye, between the cornea on the outside and the lens on the inside.
- Pupils. The pupil is seen as a black dot in the center of the iris. The pupil is essentially a hole that allows the eye to focus on the things in front of it.
Feb 27, 2019 · 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.
Apr 20, 2022 · How the Eyes Work. All the different parts of your eyes work together to help you see. First, light passes through the cornea (the clear front layer of the eye). The cornea is shaped like a dome and bends light to help the eye focus. Some of this light enters the eye through an opening called the pupil (PYOO-pul).
Overview of the Eyes. video. Each photoreceptor is linked to a nerve fiber. The nerve fibers from the photoreceptors are bundled together to form the optic nerve. The optic disk, the first part of the optic nerve, is at the back of the eye.
