Astigmatism is a common vision condition that affects how light is focused in the eye, leading to blurred or distorted sight. Many people have astigmatism to some degree, often without realizing it. If left uncorrected, it can cause headaches, eye strain, and difficulty seeing clearly at different distances.

In this guide, we’ll explain astigmatism, how it affects vision, and the best options for correction.

What Is Astigmatism?

The Role of the Cornea and Lens

Astigmatism takes place when the cornea or lens has an uneven shape. Rather than being smoothly rounded like a basketball, the eye is shaped more like a football, resulting in an uneven focus of light on the retina.

Types of Astigmatism

There are three main types:

1. Corneal Astigmatism – The cornea has an uneven curvature.
2. Lenticular Astigmatism – The lens inside the eye is irregularly shaped.
3. Mixed Astigmatism – A combination of near and farsighted distortions.

Symptoms of Astigmatism

Common signs include:

• Blurry or distorted vision at all distances
• Eye strain or discomfort
• Difficulty seeing at night
• Frequent headaches
• Squinting to see clearly

If you experience these symptoms, an eye exam can confirm whether astigmatism is the cause.

How Is Astigmatism Diagnosed?

Optometrists use several tests to detect astigmatism, including:

• Visual Acuity Test –Identifying letters on an eye chart to assess visual sharpness.
• Keratometry – Measuring the curvature of the cornea.
• Refraction Test – Determining the correct lens prescription for clearer vision.

Regular eye exams help identify astigmatism early and ensure proper correction.

Correcting Astigmatism: What Are Your Options?

1. Glasses

Eyeglasses with specially designed toric lenses help correct astigmatism by compensating for the eye’s uneven curvature. They are a simple, effective, and noninvasive solution.

2. Contact Lenses

• Toric Contact Lenses – Soft lenses that provide stable correction for astigmatism.
• Gas Permeable Lenses – Rigid lenses that reshape the cornea and provide sharper vision.
• Hybrid Lenses – A blend of flexible and firm materials for enhanced comfort and clarity.

3. Laser Eye Surgery

For those looking for a permanent solution, LASIK or PRK surgery reshapes the cornea to correct astigmatism. This option is ideal for individuals with stable prescriptions.

4. Orthokeratology (Ortho-K)

This non-surgical treatment involves wearing special rigid contact lenses overnight to gently reshape the cornea overnight, allowing for clear vision throughout the day.

Choosing the Right Correction for You

Factors to Consider

• Lifestyle – Do you prefer glasses, or are you active and need contact lenses?
• Comfort – Some people find glasses easier to wear, while others prefer contact lenses.
• Budget – Surgery and specialized lenses can be more expensive than standard glasses.
• Eye Health – Not everyone is a candidate for laser surgery or certain types of lenses.

Consulting an optometrist is the best way to determine the most suitable correction method.

Tips for Managing Astigmatism

1. Get Regular Eye Exams

Your vision changes over time. Routine check-ups help ensure your prescription remains accurate.

2. Use Proper Lighting

Avoid reading or working in dim light, as it can make blurry vision worse.

3. Follow Eye Care Habits

• Take breaks from screens using the 20-20-20 rule (look away every 20 minutes).
• Blink frequently to prevent dry eyes.
• Maintain a healthy diet rich in vitamins for eye health.

4. Wear the Right Eyewear

Always wear the correct prescription glasses or contacts to prevent strain and discomfort.

Conclusion

Astigmatism is a common but manageable vision issue. Whether you choose glasses, contact lenses, or surgery, correcting astigmatism improves clarity, reduces strain, and enhances daily comfort.

If you suspect you have astigmatism or need updated correction, schedule an eye exam with a trusted optometrist today.

Need an eye check-up?

📍 Location: 9275 Markham Rd, Markham, ON L6E 1A3, Canada
📞 Phone: +1 905-472-2020
📧 Email: [email protected]

Protect your vision and enjoy a more transparent world! 

FAQs About Astigmatism