Astigmatism : Causes
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Causes could include:
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No known cause
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The cause of astigmatism is unknown. It is usually present from birth, and often occurs together with nearsightedness or farsightedness. A minor degree of astigmatism is considered normal and does not require correction. Astigmatism is very common.
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The main symptom of astigmatism is blurring. People can also experience headaches and eyestrain. Parents can notice that a child may have astigmatism when the child can see some part of a pattern or picture more clearly than others. For example, l...
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Patients seek treatment because of blurred vision. Ophthalmologists and optometrists use a variety of tests to detect astigmatism. The patient may be asked to describe the astigmatic dial, a series of lines that radiate outward from a center. Peop...
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The standard eye examination with a refraction test, given by an optometrist or opthalmologist, is Astigmatism can be treated by the use of cylindrical lenses. The lenses are shaped to counteract the shape of the sections of the cornea that are ca...
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