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

Is contact lense suitable for astigmatism

Is contact lense suitable for astigmatism? Can everyone with astigmatism can wear contact lenses? Contact lenses are widely used in correction of refractive errors, the size of buttons similar to a thin, fully transparent. It also points soft lenses and hard mirror. Soft lens with HEMA as a material, soft, can absorb moisture, wear, soft and comfortable, but easily deformed damaged, not suitable for astigmatic eyes, the hard lens of methyl methacrylate as the material, quality hard - is not easy deformation, suitable for correction of high astigmatism and keratoconus. Ordinary glasses with contact lenses does not have the characteristics are:

(1) Due to the close attachment of corneal contact lenses, and can rotate with the eye of the rotation, regardless of which direction, the total light entering the eye through the lens center, eliminating the common Ministry of glasses produced by the edge of prism effect and oblique astigmatism defects.

(2) effectively eliminate the corneal surface irregular astigmatism. Contact lens surface curvature can be specialized according to refractive request grinding to replace the irregular corneal surface curvature, thereby eliminating corneal astigmatism.

(3) contact lenses to eliminate things like the size of the gap between the two. Because of its close to the cornea, light is passed, in the retina is not wearing glasses on the imaging and were almost to see if an object does not zoom in or out, especially suitable for binocular or monocular crystal by anisometropia.

(4) contact lens light and thin, adsorbed on the corneal surface, pleasing in appearance, with actors, athletes and other special professionals is most popular among them. However, with keratitis, corneal ulcer, corneal epithelial exfoliation, corneal pannus who should not wear contact lenses, suffering from acute conjunctivitis, dacryocystitis were forbidden from wearing contact lenses. Therefore, not every short-sighted were able to wear contact lenses.

Choosing contact lenses for astigmatism

There have not found the process of astigmatic eye examination longer than the short-sighted? In fact, because of "astigmatism" has axial problems caused by astigmatism is caused by the cornea changed shape, the so-called axial, that is, depending on the direction of deformation of the cornea, depending on each person due to the direction of deformation of the cornea has a different Therefore, astigmatism contact lenses require accurate and stable place to rectify the position on the shaft in order to ensure a clear vision, so astigmatic mirror provided by the "axial" The more comprehensive the effect of correction of astigmatism will naturally better!

Compared to a framed glasses, wearing contact lenses in addition look more natural, vivid and better, the sport will not be bound by the framework, flexible and comfortable, coupled with the lens into the eye with zero distance, to give you a more realistic three-dimensional feeling and sense of distance, Natural clearer lifelike!


Astigmatism to wear contact lenses, the stability of astigmatism and axial an extensive range of options is very important. If the lack of design and production technology, manufacturers can not provide sufficient axial, there is no guarantee axial stability. As long as the eye movement will result in slightly rotate the lens, so that the deviation of focus, there sometimes vague, sometimes clear phenomenon, easily more tired eyes, dry discomfort, reduce astigmatism correction function. Long-term wear will result in headache, affecting life and health!