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Causes
The cornea has uneven curves or irregular curvature, thereby
resulting in multiple focal points on the retina.
Symptoms
If you have only a small amount of astigmatism, you may
not notice it or have just slightly blurred vision. Sometimes
uncorrected astigmatism can give you headaches and distortion
or blurring of images at all distances. Many people have
astigmatism in addition to nearsightedness or farsightedness.
Treatment
If the degree of astigmatism is slight and no other problems
of refraction- nearsightedness or farsightedness- are
present, corrective lenses may not be needed. If the degree
of astigmatism is great enough to cause headache or distortion
of vision, prescription lenses will be needed for clear
and comfortable vision. You also may choose refractive
surgery for correcting astigmatism. |
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