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BookmarkIn ophthalmology, astigmatism is a refraction error of the eye in which there is a difference in degree of refraction in different meridians..
For more information about the topic Astigmatism (eye), read the full article at Wikipedia.org, or see the following related articles:
Hyperopia — Hyperopia, also known as hypermetropia or colloquially as farsightedness or longsightedness, is a defect of vision caused by an imperfection in the ... > read more
Eyeglass prescription — An eyeglass prescription is a written order by an ophthalmologist or an optometrist to an optician for eyeglasses. It specifies the parameters to ... > read more
Refractive surgery — Refractive eye surgery is any eye surgery used to improve the refractive state of the eye and decrease dependency on glasses or contact lenses. The ... > read more
Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Astigmatism (eye) at Wikipedia.org. See the Wikipedia copyright page for more details.
