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Additional names
This group contains additional names: - Astigmatism - Irregular Astigmatism - Regular Astigmatism
General
Astigmatism is a condition in which the curvature of the eye is not perfect, causing blurred distance and near vision. It is caused due to a mismatch in the curves of the cornea or the lens. Astigmatism is usually congenital and may occur along with nearsightedness or farsightedness. It may also occur after an injury, disease or surgery.
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Signs & symptoms
Astigmatism symptoms may include blurred vision. eyestrain, discomfort, headaches, night vision difficulties and squinting.
Diagnosis
Astigmatism is diagnosed in an eye exam which includes the usage of various instruments. At the end of the exam, a prescription of eyeglasses or contact lenses is given.
Treatment
Astigmatism is treated with corrective lenses, either eyeglasses or contact lenses. Refractive surgery may reduce the need for contact lenses or eyeglasses.There are several techniques used for refractive surgery, the most popular are laser-assisted in-situ keratomileusis (LASIK), Laser-assisted subepithelial keratectomy (LASEK), Photorefractive keratectomy (PRK)
Note
☝ We provide information on prescription and over-the-counter medicines, diagnosis, procedures and lab tests. This material is provided for educational purposes only and is not medical advice, diagnosis or treatment.
National Institutes of Health ∙ World Health Organization ∙ MedlinePluse ∙ Centers for Disease Control and Prevention
☝ All information has been reviewed by certified physicians from Alike
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