contact lenses for astigmatism

contact lenses for astigmatism, do you need one? for people with astigmatism should he or she wear these contact lenses for astigmatism? find out the solution here know what is astigmatism and which solution is right for you.
Astigmatism correct medical terminology should be referred to as "astigmatic" because the images can not complete the correct focus, you can see images of distorted shape of the line, so that images showing 』『 dissipated look, so we customarily known as chaotic as astigmatism .
Mainly the cornea and lens in trouble!

1. Cornea deformation

Cornea to the "spherical part of the skew or highlight," has just come to light images projected into the cornea, because of spherical part of the skew, or prominent, leading to the projection of light on the retina over the formation of multiple focus (normally the focus should be only one ), and so only over the original projection and the horizontal linear shape of the light, have become a straight line, horizontal line, oval, circular and other "mess" a combination of (this is called chaos, as the reason it does!); final forming images has become a "one and a lot of overlap with each other," thus showing astigmatism of multi-image style and vague.

2. Lens deviate from its normal position, or crystalline prominent cylindrical cone

Also make the light projecting over the formation of multiple focus on the retina to see images dissipated look.

Caused by astigmatism (astigmatic) What is the reason?

The normal cornea should be smooth in all directions are the same curvature as the round spherical basketball. But those who astigmatism, corneal curvature there can be said that the shape of the cornea more like rugby than basketball Bianbian round sphere. Thereby enabling light to enter more like rugby than basketball Bianbian round sphere. Thus making the light entering the cornea, the distorted and deformed image was blurred.

In general, the strength of chaos, as has been suggested that this was a congenital or inherited. However, as the relatively weak degree of disorder tend to acquired, especially eye surgery, trauma, inflammation of the cornea were injured deformation and intraocular pressure, ocular pressure such as "eye injury" prevails.

Is not with the myopia or hyperopia, astigmatism would not happen?

Wrong! Myopia or hyperopia are combined with astigmatism is very common. Hyperopia astigmatism, images will be a part of the retina before the video will be another part of the retina after a front and rear of a different focus, although far from things visible, image edges there are not clear feeling. Myopic astigmatism, images before you fall on the retina, but also a lot of focus on one image to see near things are visible, but the images are not clear the edge of the same feeling.

So there is really contact lenses for astigmatism infected people. Because not everyone can wear contact lenses for astigmatism, it depends on your cases. Should one needed to use it is best to consult your nearest optical center to seek advice