Understanding astigmatism: causes, symptoms, and treatment
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WHAT YOU NEED TO KNOW
Astigmatism is a common and treatable vision condition that affects how clearly you see. It happens when the front surface of the eye or the lens inside the eye is not perfectly round. As a result, light doesn’t focus properly and vision can appear blurry or distorted.
The great news? With the right diagnosis and treatment, most people with astigmatism can achieve clear, comfortable vision.
What does astigmatism do to your eyes?
When the eye’s shape is irregular, it has to work harder to focus. Over time, this extra effort can lead to discomfort, including:
Eye strain or fatigue
Squinting to see clearly
Headaches, especially after reading or screen use
Many people don’t realize these symptoms are related to their vision until they get an eye exam.
What does astigmatism do to your vision?
Astigmatism can make objects look blurred, stretched, or slightly shadowed. Symptoms can be mild or more noticeable, and they may change over time. You may notice:
Blurry vision at both near and far distances
Difficulty seeing clearly at night
Trouble focusing on fine details
Shadowed Images
Visual discomfort during prolonged tasks
RISK FACTORS
Astigmatism is very common and is often starts in early childhood. It can develop due to:
Eye injury or eye disease
Genetics (it can run in families)
Previous eye surgery
Eye rubbing
How do I know if I have astigmatism?
The only way to know for sure is with a comprehensive eye exam. Some people experience symptoms, while others, including children, may not realize their vision is blurred.
Regular eye exams are especially important for children, as untreated astigmatism can affect learning, reading, and visual development.
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How is astigmatism treated?
Astigmatism is highly manageable. Treatment options may include:
customized to your prescription
designed specifically for astigmatism
reduce glare and improve contrast in low light conditions
The best option depends on your vision needs, lifestyle, and eye health. Your optometrist will help guide that decision.
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If you’re experiencing any of these symptoms, it’s time to book an eye exam.
TAKE THE NEXT STEP TOWARD CLEARER VISION
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FAQs
What is glaucoma and how does it affect your vision?
Glaucoma is a group of eye conditions that damage the optic nerve, usually from increased eye pressure. It's a leading cause of vision loss because damage occurs gradually without noticeable symptoms until permanent vision loss happens, earning it the name "silent thief of sight."
How can I tell if I have glaucoma before losing my vision?
Most people can't detect glaucoma symptoms on their own until significant vision loss occurs. That's why regular comprehensive eye exams are essential—your eye doctor can measure eye pressure and examine your optic nerve to detect changes before you notice symptoms.
Who should get screened for glaucoma regularly?
Everyone benefits from regular eye exams, but screening becomes especially important if you're over 40, have a family history of glaucoma, have diabetes or high blood pressure, or belong to certain ethnic backgrounds with higher risk factors.
Can glaucoma be prevented or is it hereditary?
While you can't completely prevent glaucoma, especially if you have genetic risk factors, early detection through routine eye exams allows for effective management. Catching it early helps preserve your sight and prevent progression through proper treatment and monitoring.
How often should I get an eye exam to check for glaucoma?
Most adults should have comprehensive eye exams every one to two years. If you're over 40 or have risk factors like family history, diabetes, or high blood pressure, annual eye exams help ensure early detection and protect your vision.