What is Eye | What are the Parts of the Eye.

at April 28, 2017 Labels: Eye.

What is Eye?

The eye is an organ that recognizes light and sends motions along the optic nerve to the mind. In people, the eye is a valuable sense organ that gives us the capacity to see. It takes into light discernment and vision, including the capacity to separate amongst colors and depth.

Although small in size, the eye is an exceptionally complex organ. The eye is approx 1 inch wide, 1 inch deep and 0.9 inches tall. The human eye has a 200-degree seeing angle and can see 10 million colors and shades. Human have two eyes which allow us to have better deep recognition and Binocular stereopsis.

Parts of Eye | Anatomy of eye.

Cornea - It is a transform layer in front of eye that cover iris,puple and anterior chamber.
Iris - It is the thin,circular structure in eye and pigment tisuue controls pupil constriction and pupil shutter and it is colored part of eye.
Pupil - It is the hole in the middle of the Iris by which light passes through retina. Pupil is black and light is absored by this by which we are able to see things.
Sclera - It is the white part of the eye that is covered around the globe of height and it is continuous with cornea.

Anterior Chamber - A fluid filled chamber between Iris and Cornea's inner surface composed to endothelium.
Trabecular meshwork - Meshwork tissue located around the around base of Cornea and keep the eye in angle.Trabecular meshwork is continuous with the ciliary body.
Crystalline Lens - The Crystalline lens conveys 1/3 of the refracting or focusing power to the eye. It is a stringy tissue that can change shape to increase or decrease it's power because it can change shape and it allows eye to move around and to focus on objects.
Ciliary body - It is the muscle that contract to change the shape of lens. It allow human to focus the near object and the other function of ciliary body is to produce aqueous humour that flow into the interior chamber.
Retina - Retina is a light sensitive tissue that capture light and transfer it to the brain as nerve impulse.
Optic nerve - It is the network of nerve cells which receives impluses from nerve fiber layer on retina. It transfers nerve impulse to the brain.