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Does astigmatism increase by age?

11 Feb 2023 0 Comments

Astigmatism is a common vision problem that can affect people of all ages, but does astigmatism increase with age? The answer to this question is a bit complicated, as there is no definitive answer. While it is true that astigmatism tends to be more prevalent in older adults, the degree of severity can vary depending on the individual and other factors. Ultimately, how one’s astigmatism changes over time depends on the person’s overall health, lifestyle habits, and genetic predisposition.

First, it is important to understand what astigmatism is. Astigmatism is an optical defect in which the eye has an irregularly shaped cornea or lens, causing light entering the eye to be focused in multiple points instead of a single focal point. This results in blurred or distorted vision. Astigmatism is usually diagnosed during a comprehensive eye exam.

So, does astigmatism increase with age? Generally speaking, yes. Many studies have found that the prevalence of astigmatism increases with age, particularly when examining those aged 40 and older. One study conducted by the American Academy of Ophthalmology found that nearly half of those aged 40-59 had some degree of astigmatism, compared to 30 percent of those aged 20-39.

The reason why astigmatism increases with age is not completely understood, though it is believed to be related to changes in the shape of the cornea over time. Additionally, it is believed that long-term exposure to UV radiation, smoking, and certain chronic illnesses such as diabetes may contribute to the development of astigmatism.

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