Vision care

HUMAN EYES

 

The human eye is the body organ which reacts to light of different purposes ,The sense which allows the eye to see.And see the colors that the human eye can recognize one crore.
Eye of the sensorium which body - the color is seen.Humans have two eyes.

 

 

Composition

Each eye is 2.5 cm diameter spherical nodules.It is located in Netrgrt skull and a small portion is visible from the outside.This part Agrkhand says.This section is the central part of the cornea, which is transparent.The three layers of the eyeball.The outer layer (cornea) of dense connective fibers which are protected inside layers and facilitates the Netrpeshion Snnnives of the tendons.The cornea is the transparent front part and the rest of the board is opaque white.Mucous membrane from the back of the eye called the Kanjnktaiwa the whiteness reflects this.The middle layer of the choroid black characters. It has two parts: the posterior two-thirds, choroid, which is simply a network of acupressure, and the anterior third, relatively coarse portion, called the ciliary body.The circular iris or iris nodules and further makes the platen. Iris is a hole between the pupil or the eye are called stars.It may be small and similar to the large rear section of the light enters the eye.The inner layer, made ​​of nerve fibers and cells, the retina is.

In addition to these layers of the ciliary body behind the iris lenses suspension Muscles located right by the en suite.Frontpage space between the cornea and the lens iris and anterior chamber and posterior chamber lens is called the whip-round location.These parties have Netrid diluted aqueous fluid.These parties have Netrid diluted aqueous fluid.Slisi transparent crystalline lens in the posterior part (quad) are called the concentrated fluid.

 

Ciliary body consists of three parts

(1) ciliated ring - the obverse of the choroid, which are radially installed Meden .
(2) ciliated Prvrdh - lenses like skirting around campus is located .
(3) The ciliary muscle - These muscles are unlined and are located radially and circular manner. Among these muscles are well developed vision.

There are two types of muscles in the iris, the circular and radially. Buckling of circular contraction of the pupil is smaller and expands radially. These muscles are automated and centrally controlled by reflex action occurs.
Construction of aqueous humor is probably derived from ciliated cells Prvrdh dialysis liquid is Sfatkalpyukt.
Aqueous humor in the eye of the arc 18 to 25 mm. (Mercury) is. Posterior chamber aqueous humor from the anterior chamber and out of the state comes in here Fantana. Between the end of the cord and the state of the epidemic here: Art of the flimsy difference boards and aqueous humor from the eye vein plummets into the same path. 2 cu mm per minute. Interrupted somewhere in the aqueous humor is formed and then exit the eye pressure rises. This condition is "glaucoma" or Smlbai says. Stringent eye appear to touch the stone.