What Is Astigmatism? Understanding the Condition and How Glasses Can Help
Astigmatism – Causes, Symptoms, and Treatment Options
Astigmatism is a common vision condition that causes blurry or distorted sight. It occurs when the cornea (the clear front surface of the eye) or the eye’s lens has an irregular shape, preventing light from focusing properly on the retina.
The best way to determine if you have astigmatism is through a comprehensive eye exam. Thankfully, wearing prescription glasses or contact lenses can correct vision problems caused by astigmatism. Some people may also opt for surgery to reshape the cornea and improve vision.
What Are the Symptoms of Astigmatism?
Astigmatism symptoms can range from mild to severe. Common signs include:
Blurry or distorted vision
Frequent squinting to see clearly
Eye strain or discomfort
Headaches
Difficulty seeing at night
In mild cases, symptoms may go unnoticed. That’s why regular eye exams are essential—especially for children who may not realize their vision isn’t normal. A professional eye test can determine whether spectacles or other treatments are needed.
What Causes Astigmatism?
Astigmatism occurs due to an irregular curvature of the cornea or lens, leading to a refractive error. This abnormal shape affects how light enters the eye, causing vision to appear blurry or stretched.
Key facts about astigmatism:
Some people are born with it, while others develop it in childhood or early adulthood.
Astigmatism can also result from eye injuries, previous eye surgeries, or certain medical conditions.
It is often hereditary, meaning if your parents have astigmatism, you may develop it too.
There is no way to prevent astigmatism, but early detection and wearing the right spectacles can help manage the condition effectively.
How Is Astigmatism Diagnosed?
Eye doctors can diagnose astigmatism during a comprehensive eye exam. This painless test involves:
Checking how your eyes focus light
Measuring the curvature of your cornea
Using a dilated eye exam to examine the overall health of your eyes
If astigmatism is detected, your optometrist will prescribe corrective glasses or contact lenses to improve your vision.
Treatment Options for Astigmatism – Glasses, Lenses, and Surgery
The most common and effective ways to correct astigmatism include:
glasses for Astigmatism
Prescription spectacles are the easiest and most popular way to correct astigmatism. These glasses are specially designed to compensate for the irregular curvature of the eye, providing clear vision.
Contact Lenses
Soft toric lenses or rigid gas permeable lenses are also options for astigmatism. These lenses help reshape how light enters the eye, improving focus.
Laser Eye Surgery
For those who prefer a long-term solution, procedures like LASIK or PRK can reshape the cornea, correcting astigmatism permanently. Not everyone is a candidate for surgery, so an eye doctor will determine if this is a suitable option.
Do You Need Treatment?
If your astigmatism is mild, you may not require treatment. However, if you experience frequent eye strain, headaches, or trouble seeing clearly, wearing glasses or contact lenses can significantly improve your vision and daily comfort.
Conclusion – Take Control of Your Vision
Astigmatism is a common but treatable condition. Regular eye exams are crucial for early detection, and wearing the right glasses or contact lenses can help you see clearly. If you suspect you have astigmatism, book an appointment with an eye specialist to explore your best treatment options.