Read details first: Is astigmatism in both eyes common?

Question

I recently went to the eye docter's and he told me i had astigmatism in both of my eyes and that i am boardline for needing glasses and that i am far and nearsighted so what does all that mean about the astigmatsim how does astigmatism happen ?

Answer 1

I have astigmatism in my left eye and my right eye has normal vision.  Astigmatism is common and almost everyone has some degree of astigmatism, however I believe only about 20% of the population have >1 diopter of astigmatism.   Astigmatism causes blurred vision at all distances just some distances are worse than others.  Astigmatism is typically caused by an irregularly shaped cornea, but can be an irregularly shaped lens as well.

This video on youtube explains it really well.

http://www.youtube.com/watch?v=XuyXZZOnS...

I know many people who have astigmatism in both eyes.  It is really common.

Answer 2

Definition

Astigmatism usually occurs when the front surface of the eye, the cornea, has an irregular curvature. Astigmatism is one of a group of eye conditions known as refractive errors. Refractive errors cause a disturbance in the way that light rays are focused within the eye. Astigmatism often occurs with nearsightedness and farsightedness, conditions also resulting from refractive errors. Astigmatism is not a disease nor does it mean that you have "bad eyes." It simply means that you have a variation or disturbance in the shape of your cornea.

What causes astigmatism?

Astigmatism usually occurs when the front surface of the eye, the cornea, has an irregular curvature. Normally the cornea is smooth and equally curved in all directions and light entering the cornea is focused equally on all planes, or in all directions. In astigmatism, the front surface of the cornea is curved more in one direction than in the other. This abnormality may result in vision that is much like looking into a distorted, wavy mirror. The distortion results because of an inability of the eye to focus light rays to a point.

If the corneal surface has a high degree of variation in its curvature, light refraction may be impaired to the degree that corrective lenses are needed to help focus light rays better. At any time, only a small proportion of the rays are focused and the remainder are not, so that the image formed is always blurred.Usually, astigmatism causes blurred vision at all distances. Some people with very high degrees of astigmatism may have cornea problems such as keratoconus.

Astigmatism is very common. Some experts believe that almost everyone has a degree of astigmatism, often from birth, which may remain the same throughout life. The exact reason for differences in corneal shape remains unknown, but the tendency to develop astigmatism is inherited. For that reason, some people are more prone to develop astigmatism than others.

Answer 3

when you are farsightedness or nearsightedness that mean 3 changes in your eye ball or one of them the 3 was:

-corneal curvature (the frontal layer)

- power of lens

- size of eye ball

So,may be in your situation your far and near depend on change in the curve of cornea

astigmatism mean change in the curve of the cornea and make it's shape as spoon even in both eye or on of them

astigmatism in major came with far or near or both

i have one astigmatism eye and both farsightedness.

i hope that help you