alexa Astigmatism | Russia | PDF | PPT| Case Reports | Symptoms | Treatment

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Astigmatism

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  • Astigmatism

    Astigmatism is a natural and commonly occurring cause of blurred or distorted vision that is usually associated with an imperfectly shaped cornea. It is a common eye condition that's usually corrected by eyeglasses, contact lenses, or surgery. Astigmatism is caused by an eye that is not completely round and occurs in nearly everybody to some degree.

  • Astigmatism

    The specific cause of astigmatism is unknown. Astigmatism occurs due to the irregular shape of the cornea or the lens inside the eye. The cornea and lens are primarily responsible for properly focusing light entering your eyes allowing you to see things clearly. Astigmatism can be diagnosed through a comprehensive eye examination. Testing for astigmatism measures how the eyes focus light and determines the power of any optical lenses needed to compensate for reduced vision.

  • Astigmatism

    Almost all degrees of “normal” astigmatism can be corrected with properly prescribed eyeglasses or contact lenses. For a person with only a slight degree of astigmatism, corrective lenses may not be needed at all, as long as other conditions, such as near sightedness or farsightedness, are not present. If the astigmatism is moderate to high, however, corrective glasses or contact lenses are probably needed. The Extrapolated Prevalence of Astigmatism in Russia is 23,819,236. Prevalance Rate for Astigmatism is approx 1 in 6 or 15.54% or 45 million people.

 

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