{"id":10204,"date":"2013-11-05T22:09:35","date_gmt":"2013-11-05T22:09:35","guid":{"rendered":"http:\/\/blog.zennioptical.com\/?p=10204"},"modified":"2025-01-31T04:56:05","modified_gmt":"2025-01-31T12:56:05","slug":"just-exactly-what-is-astigmatism","status":"publish","type":"post","link":"https:\/\/ca.zennioptical.com\/blog\/just-exactly-what-is-astigmatism\/","title":{"rendered":"All About Astigmatism"},"content":{"rendered":"

This post was updated on May 19, 2023<\/strong><\/p>\n

What is Astigmatism?<\/h2>\n

Astigmatism is a common eye condition that causes blurry or distorted vision due to an irregularly shaped cornea or lens.<\/strong><\/p>\n

Astigmatism affects how the eye focuses light. In a normal eye, the cornea and lens at the front of the eye are round and evenly curved, like a basketball. However, in an eye with astigmatism, the cornea or lens is irregularly shaped, like a football or rugby ball. This causes light to be focused unevenly on the retina, the part of the eye that senses light and sends signals to the brain. As a result, people with astigmatism often have blurry or distorted vision, as well as other symptoms like eyestrain, headaches, and difficulty seeing at night.<\/p>\n

Astigmatism can be diagnosed through a routine eye exam, and it can be corrected with eyeglasses, contact lenses, or refractive surgery.<\/p>\n

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What Are Common Symptoms Of Astigmatism?<\/b>
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Astigmatism is so common that almost all of us have it to some degree. The causes are predominantly genetic and can increase or decrease with age. Outside factors like surgery, eye disease, or an injury can also cause you to develop an astigmatism.<\/p>\n

With the naked eye, you likely won\u2019t notice astigmatism in your eye or in the eyes of others. Just like nearsightedness or farsightedness, astigmatism isn\u2019t a \u201cvisible\u201d condition. That said, there are some common symptoms that may be signs of astigmatism, such as:<\/p>\n