the astigmatism of two curves

Astigmatism is a very common situation, has about 16 people in the United States of America eyes affected. Firstly, influence of astigmatism eyes, it is a transparent layer formed in front of the cornea of the eye. A healthy cornea is spherical, usually more than a basketball.
Astigmatism corneal become deformity, and began to look more like a football. So what does this mean? Most of the astigmatism of two curves, one is steep, flat. Now in the cornea, which usually allow light to pass through the eye to focus on one point, cause the eye to light by focusing on more than one spot. This will make your brain is trying to explain the two blurred images and results. Now, this is different from the myopia or hyperopia, this is retinal light focusing a problem in front of or behind the. So, now you know what is astigmatism, let's talk about you may have its reason.
There are many people born deformed cornea, of which more than moment spherical astigmatism, so you can thank your parents and they give your genes. There are other causes of the eyelid on the corneal astigmatism, such as the pressure is too large, they increase their close work with the eye, eye or corneal injury. People who accept operation on his eyes, until complete healing of corneal astigmatism may temporarily usually. Fortunately for us, especially our bad genes, astigmatism is easily corrected, wear contact lenses, or other corrective lenses. the sun sign - the sun in summer and soaring. Aries is arrogant, "virgin" more beautiful planet provides the typical report these columns in the daily horoscopes we read. The sun sign your bearing is the fashion, it is correctly positioned second city fashion show on the list. Twelve animals of the Chinese zodiac in T-shirts, bracelet shaped symbol, like the elegant bracelet, can correct the urban fashion hotel for the upcoming summer. This is your sign, this is your city fashion show. Show constellation and proud of you! The girl let the boy cut calories and turned to see your hat. There are a lot of "trend", can grab. Every place full to the brim of the hat to Martini, is a formal party or street star!