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Astigmatism Demystified: Causes and Symptoms and Modern Correction Techniques

Astigmatism causes

Astigmatism is a common eye condition that affects millions of people worldwide. It is a refractive error that occurs when the cornea or lens of the eye is irregularly shaped, causing blurred or distorted vision. In this blog post, we will discuss the causes and symptoms of astigmatism and explore the modern correction techniques available to treat this condition.

Causes of Astigmatism

Genetics, eye injuries, and specific medical conditions are just a few of the causes of astigmatism. In most cases, astigmatism is present at birth and is often hereditary. This means that if one or both of your parents have astigmatism, you are more likely to develop it as well.

Eye injuries, such as a blow to the eye or a penetrating injury, can also cause astigmatism. These injuries can alter the shape of the cornea, leading to astigmatism. Additionally, certain medical conditions, such as keratoconus (a progressive thinning of the cornea) and scarring of the cornea, can also cause astigmatism.

Symptoms of Astigmatism

The most common symptom of astigmatism is blurred or distorted vision. This can affect both near and far vision, making it difficult to see objects clearly at any distance. Other symptoms may include eye strain, headaches, and eye discomfort.

In some cases, astigmatism may also cause double vision, where a single object appears as two images. This can be particularly bothersome when trying to read or drive.

Modern Correction Techniques

Fortunately, there are several modern correction techniques available to treat astigmatism and improve vision. These include glasses, contact lenses, and refractive surgery.

Glasses are the most common and non-invasive way to correct astigmatism. They work by bending light rays as they enter the eye, compensating for the irregular shape of the cornea or lens. Glasses can provide clear and comfortable vision for those with mild to moderate astigmatism.

Contact lenses are another popular option for correcting astigmatism. They work in a similar way to glasses, but sit directly on the eye’s surface. This allows for a wider field of vision and can be a better option for those with higher levels of astigmatism.

For those looking for a more permanent solution, refractive surgery may be an option. This includes procedures such as LASIK, where a laser is used to reshape the cornea, correcting the irregular shape and improving vision. Refractive surgery can provide long-term results and reduce the need for glasses or contact lenses.

Frequently Asked Questions (FAQ)

Can astigmatism be cured?

While there is no cure for astigmatism, it can be effectively managed and corrected with glasses, contact lenses, or refractive surgery.

Can astigmatism worsen over time?

Astigmatism can worsen over time, especially during periods of rapid eye growth, such as during childhood and adolescence. It is important to have regular eye exams to monitor any changes in your vision.

Can I develop astigmatism later in life?

Yes, it is possible to develop astigmatism later in life, especially if you have a family history of the condition or experience an eye injury or medical condition that affects the shape of the cornea.

Can I wear contact lenses if I have astigmatism?

Yes, there are special contact lenses designed specifically for those with astigmatism, called toric lenses. These lenses are custom-made to fit the unique shape of your eye and can provide clear and comfortable vision.


Astigmatism is a common eye condition that can affect anyone, regardless of age or gender. It can result in blurred or distorted vision and is due to an irregularly shaped cornea or lens. Fortunately, there are several modern correction techniques available to treat astigmatism and improve vision. If you are experiencing symptoms of astigmatism, it is important to consult an eye doctor for a proper diagnosis and treatment plan.

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