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The eyes work from the moment we wake until we close and when we go to sleep. Assimilate information about the world around us-the silhouettes and the shapes, colors, movements and more. Then process the information and transfer it to the brain to let it know what happens outside the body. Let’s see what parts stated.
1. How is your eye?
The eyes are light sensitive organs, which allow an analysis of the shape and color of objects. If we study the eye from outside to inside we find the following parts. Enlightenment. At right, a representation of the eye with its different parts in cross section.
1.1. Outer layer
It consists of the cornea, limbus (transition zone) and the sclera. In this outer layer is called fibrous because the most resistant.
The cornea is transparent and smooth, has many nerve endings, but lacks blood vessels. Behind the cornea is a chamber filled with clear fluid called aqueous humor, which separates the lens. The latter lens is a flat, elastic, transparent and without glasses, which serves to focus. The sclera is the back is white and her muscles are inserted. It is lined by the conjunctiva.
1.2. Inner layer or nerve
It consists of the iris, ciliary body and choroid. The iris is a diaphragm that regulates the amount of light entering, the interior matches the pupil. The ciliary body is attached by the lens zonule of Zinn. The choroid is the most posterior is highly pigmented and vascular.
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