Astigmatism is a vision condition that occurs when the front surface of your eye, the cornea, is slightly irregular in shape.
People with astigmatism will commonly have blurred or distorted vision or suffer from headache and eyestrain etc.
Usually nearsightedness and farsightedness occur with astigmatism.
In most circumstances, one does not have to cure astigmatism.
If there is a necessity, kinds of ways such as having a surgery and wearing glasses can be applied.
The principle to cure astigmatism is to, if a normal cornea is compared to a baseball, reshape the cornea to one shaped like a football so as to reflect light correctly.
Because when the cornea is shaped like a football there is more than one curve on the cornea, which would causes light to reflect on more than one point in the retina, resulting in blurry vision.
Correcting astigmatism by a surgery is to cut a microscopic incision in the eye and reshaping the cornea.
Keratotomy and LASIK are most frequently applied.
No matter which one is applied, the final aim is to reshape the cornea to be more like a baseball than a football, making the cornea more spherical.
Correcting astigmatism by wearing eyeglasses is to redirect the light to the retina through lenses.
In a similar way, contact lenses work the same to redirect the light.
For a long time period, only RGP (rigid gas permeable) contacts are obtainable for astigmatism people, but now toric soft lenses are also available.
Both of the two ways are able to provide clear vision for the astigmatism patient.
With the development of science and technology, assistances for eye problems are improved greatly.
As long as you know your eye prescription and how much astigmatism you have, you are able to buy a pair of eyewear suitable to you most.
If you are an astigmatism patient and you want to cure your eye problem, just contact your optometrist and tell him detail information about you eyes.
He will advise you the most effective way for your vision improvement, either surgery or glasses.