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1. Dictionary

   a·stig·ma·tism

   /əˈstiɡməˌtizəm/

   noun

   • 1. a defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focus.

   Word Origin mid 19th century: from a-1 ‘without’ + Greek stigma ‘point’ + -ism.

   Derivatives

   • 1. astigmatic adjective

   Scrabble Points: 16

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2. www.mayoclinic.org › diseases-conditions › astigmatismAstigmatism - Symptoms & causes - Mayo Clinic

   www.mayoclinic.org › diseases-conditions › astigmatism

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   Oct 5, 2021 · Astigmatism (uh-STIG-muh-tiz-um) is a common and generally treatable imperfection in the curvature of the eye that causes blurred distance and near vision. Astigmatism occurs when either the front surface of the eye (cornea) or the lens inside the eye has mismatched curves.

3. www.aao.org › eye-health › diseasesWhat Is Astigmatism? Symptoms, Causes, Diagnosis, Treatment

   www.aao.org › eye-health › diseases

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   May 10, 2024 · Astigmatism is an imperfection in the curvature of your eye’s cornea or lens. In this article: Video: What Is Astigmatism? What Is the Main Cause of Astigmatism? How Does Astigmatism Affect Vision? How Can You Tell if You Have Astigmatism? Astigmatism Diagnosis. How Is Astigmatism Corrected? Video: LASIK for Astigmatism.

4. www.webmd.com › eye-health › astigmatism-eyesAstigmatism: Causes, Symptoms, Diagnosis, and Treatment - WebMD

   www.webmd.com › eye-health › astigmatism-eyes

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   Apr 22, 2024 · Astigmatism is a condition where the cornea (the front part of the eye) isn't perfectly round, causing light to bend unevenly and making vision blurry...

5. www.healthline.com › health › astigmatismAstigmatism: Causes, Types, Symptoms & Treatment - Healthline

   www.healthline.com › health › astigmatism

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   Apr 26, 2023 · Astigmatism is a common vision problem caused by an error in the shape of the cornea. Symptoms can differ from person to person but may include blurry vision and difficulty seeing at night. With...

6. www.visioncenter.org › refractive-errors › astigmatismWhat Is Astigmatism? Causes, Symptoms & Treatment - Vision Center

   www.visioncenter.org › refractive-errors › astigmatism

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   Apr 29, 2024 · Astigmatism is a common eye problem that makes your vision blurry at near and far distances. It occurs when the cornea or lens of the eye is irregularly shaped. When the eye’s curvature isn’t smooth and even, light rays cannot properly focus, causing blurred vision.

7. www.nei.nih.gov › eye-conditions-and-diseases › astigmatismAstigmatism | National Eye Institute

   www.nei.nih.gov › eye-conditions-and-diseases › astigmatism

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   Nov 15, 2023 · Astigmatism is a common eye problem that can make your vision blurry or distorted. It happens when your cornea (the clear front layer of your eye) or lens (an inner part of your eye that helps the eye focus) has a different shape than normal.

8. en.wikipedia.org › wiki › AstigmatismAstigmatism - Wikipedia

   en.wikipedia.org › wiki › Astigmatism

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   Astigmatism is a type of refractive error due to rotational asymmetry in the eye's refractive power. This results in distorted or blurred vision at any distance. [1] . Other symptoms can include eyestrain, headaches, and trouble driving at night. [1] . Astigmatism often occurs at birth and can change or develop later in life. [5] .