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  1. 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.

  2. Apr 26, 2023 · Astigmatism is caused by unusual curvature in the eyes lens or cornea that prevents light from being focused into the focal point of the retina. This results in decreased vision or...

  3. 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. Apr 22, 2024 · Astigmatism - Learn more about the causes, symptoms, diagnosis, and treatment of this condition in which your eye isn’t completely round.

  5. Feb 19, 2019 · Astigmatism is a condition caused by subtle flaws in the way your eye bends light ( a process called refraction) that passes to the retina, the light-sensitive area at the back of the eyeball. The optic nerve transmits nerve impulses from the retina to the brain, which translates them into eyesight.

  6. Nov 20, 2022 · Astigmatism is a common condition that makes the shape of your eye more curved than it should be. The blurry vision astigmatism causes can be annoying and make it hard to participate in your daily routine. Fortunately, most people with astigmatism only need glasses or contacts to see clearly.

  7. Apr 29, 2024 · What Causes Astigmatism? Who is at Risk for Astigmatism? Symptoms of Astigmatism. Key Takeaways. 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.

  8. www.nei.nih.gov › learn-about-eye-health › eye-conditions-and-diseasesAstigmatism | National Eye Institute

    Nov 15, 2023 · What causes astigmatism? Astigmatism happens when your cornea or lens has a different shape than normal. The shape makes light bend differently as it enters your eye, causing a refractive error.

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

    The cause of astigmatism is unclear; however, it is believed to be partly related to genetic factors. [3] [4] The underlying mechanism involves an irregular curvature of the cornea and protective reaction changes in the lens of the eye, called lens astigmatism, that has the same mechanism as spasm of accommodation.

  10. Oct 5, 2021 · Symptoms & causes. Diagnosis & treatment. On this page. Diagnosis. Treatment. Preparing for your appointment. Diagnosis. Astigmatism is diagnosed with an eye exam. A complete eye exam involves both a series of tests to check eye health and a refraction, which determines how the eyes bend light.