Anatomy 0f Eye

Layer containing blood vessels that lines the back of the eye and is located between the retina the inner light-sensitive layer and the sclera the outer white eye wall. IntroductionIntroduction The eye is a specialized sense organ that helps us to understand our environment.

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The sclera covers the entire eyeball except the cornea.

Anatomy 0f eye. There are three major parts in each eye like. The orbit is formed by the cheekbone the forehead the temple and the side of the nose. Here is a tour of the eye starting from the outside going in through the front and working to the back.

Choroid Of The Eye. An eye is the sense organ of vision. Cornea Of The Eye.

The iris is partly responsible for regulating the amount of light permitted to enter the eye. The iris contains circular muscles which go around the pupil and radial muscles that radiate toward the pupil. It forms a coloured muscular diaphragm across the front of our lens with an aperture in the centre called the Pupil.

They are placed within the orbits two cavities in the upper face in the anterior surface of the head. Cones on the other hand function best in bright light. It consists of thin circular and longitudinal muscle fibers just behind the cornea.

Also the sclera is pierced by the optic nerve at the posterior end of the eyeball. The choroid continues at the front of the eyeball to form the Iris. Aperture Of The Eye.

In conditions of low light the iris relaxes and the pupil enlarges. It converts light into electrical impulses. Macula Lutea Of The Eye.

Anatomy of the Eye. Receptor sensory pathway and a brain center. Cornea - The cornea is the clear dome-like structure on the front part of the eyeThe cornea delivers 23 of the refracting power to the eye.

Eye Anatomy and Physiology. Conjunctiva Of The Eye. Conjunctiva - The conjunctiva is a mucus membrane that covers the surface of the eye and the inner part of the eyelids.

It occupies the majority of the posterior eyeball and serves for attachment of the extrinsic muscles of the eye. Lens also called crystalline lens. For more details about specific structures of the eye and how they function visit these pages.

Besides the eyes the orbits host several structures that support the eyeballs including muscles vessels nerves and a gland. The human eye contains about 125 million rods which are necessary for seeing in dim light. It gives shape to the eyeball makes it more rigid protects its inner parts and serves as a site of attachment for the extrinsic eye muscles.

The White Of The Eye. The clear dome-shaped surface that covers the front of the eye. The eye is cushioned within the orbit by pads of fat.

The iris which is conspicuous as the colored part of the eye is a circular muscular ring lying between the lens and cornea that regulates the amount of light entering the eye. This is the part that identifies a persons eye colour. Human eye specialized sense organ in humans that is capable of receiving visual images which are relayed to the brain.

The place where the cornea and the sclera meet is called the corneoscleral junction. The colored part of the eye. 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.

SCLERA SCLER- HARD the white of the eye is a layer of dense connective tissue made up mostly of collagen fibers and fibroblasts. There are between 6 and 7 million cones in the eye and they are essential for receiving a sharp accurate image and for distinguishing colours. The Iris is the dark-coloured part in the anatomy of our eye.

The transparent structure inside the eye that focuses light rays onto the retina. Parts of the Eye Outside the Eyeball. The sclera fibrous layer Choroid layer.

The eyes are essential for our daily experience since about 70 of information we gather is by seeing. The iris is a flat thin ring-shaped structure sticking in to the anterior chamber. In conditions of high ambient light the iris contracts reducing the size of the pupil at its center.

The orbit is the bony eye socket of the skull. It is a sensory unit composed of three parts. The inside lining of the eye is covered by special light-sensing cells that are collectively called the retina.

Structure containing muscle and is located behind the iris which focuses the lens. Anatomy of the Eye. Now the sclera is opaque and makes the white shell of the eyes.

To understand the diseases and conditions that can affect the eye it helps to understand basic eye anatomy. The Uvea Of The Eye. Lens Of The Eye.

In addition to the eyeball itself the orbit contains the muscles that move the eye blood vessels and nerves. The eye sits in a protective bony socket called the orbit. It perceives the light energy converts it into electrical energy thereby helping us to see.

Behind the eye your optic nerve carries. It is spherical in shaped It is about 25 cm in diameter situated in the orbital cavity 5. In higher organisms the eye is a complex optical system which collects light from the surrounding environment regulates its intensity through a diaphragm focuses it through an adjustable assembly of lenses to form an image converts this image into a set of electrical signals and transmits these signals to the brain through complex neural pathways that connect the eye via the optic nerve to the visual cortex and other areas of the brain.

Eyes are spheroid shape organs fitted into the two orbitals of the skull.

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