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  1. Astigmatism - Symptoms & causes - Mayo Clinic

    Apr 30, 2025 · Astigmatism is a type of refractive error caused when either the cornea or the lens has mismatched curves. This makes vision blurry because there are two image points.

  2. Astigmatism - Wikipedia

    Astigmatism is a type of refractive error due to rotational asymmetry in the eye's refractive power. The lens and cornea of an eye without astigmatism are nearly spherical, with only a single radius of …

  3. Astigmatism Explained: Causes, Diagnosis, Treatment ...

    Blurry vision? It might be astigmatism—but not all cases are the same. Learn the real causes, symptoms, and treatment options.

  4. Astigmatism - National Eye Institute

    Dec 4, 2024 · Learn about the symptoms, causes, diagnosis, and treatment of astigmatism.

  5. Astigmatism Guide: Causes, Symptoms and Treatment Options

    Sep 27, 2024 · Astigmatism - an easy to understand guide covering causes, diagnosis, symptoms, treatment and prevention plus additional in depth medical information.

  6. Astigmatism: Causes, Symptoms, Diagnosis, and Treatment - WebMD

    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 or distorted.

  7. Astigmatism: MedlinePlus Medical Encyclopedia

    Jul 9, 2024 · With astigmatism, the cornea is abnormally curved. This curve causes vision to be out of focus. The cause of astigmatism is unknown. It is most often present from birth. Astigmatism often …

  8. What Is Astigmatism? Causes, Symptoms, and Treatment - GoodRx

    Jul 8, 2025 · Astigmatism develops when the cornea or lens of your eye changes shape. Astigmatism causes blurred or distorted vision, eyestrain, and headaches. Astigmatism can be treated with …

  9. What Is Astigmatism? Causes, Symptoms & Treatment

    May 30, 2025 · What is Astigmatism? Astigmatism is a common and treatable eye condition that occurs when either the cornea or the lens has an irregular shape. It's a type of refractive error that causes …

  10. Astigmatism | Definition & Treatment | Britannica

    Nov 21, 2025 · Astigmatism, nonuniform curvature of the cornea (the transparent, dome-shaped tissue located in front of the iris and pupil) that causes the eye to focus images at different distances, …