Can Laser Eye Surgery Correct Astigmatism?

If you have astigmatism, you may have heard that laser eye surgery can’t fix it—but that’s a common misconception. The reality is that LASIK, PRK, and LALEX (SMILE & ATOS) can all effectively treat astigmatism, helping you achieve clearer, sharper vision.

What is Astigmatism?

Astigmatism is a common vision condition where the cornea (the clear front surface of the eye) has an irregular shape. Instead of being perfectly round like a soccer ball, it’s shaped more like an oval football, causing light to focus unevenly on the retina.

Symptoms of Astigmatism:

• Blurry vision at all distances.
• Eye strain or headaches after reading or screen use.
• Squinting to focus on objects.
• Glare and halos around lights, especially at night.

Astigmatism often occurs alongside myopia (short-sightedness) or hyperopia (long-sightedness) and affects approximately one-third of all people.

How Does Laser Eye Surgery Fix Astigmatism?

Laser eye surgery corrects astigmatism by reshaping the cornea, making it more symmetrical so that light can focus correctly on the retina. This results in clear, sharp vision without the need for glasses or contact lenses.

Treatment Options for Astigmatism:

LASIK (Laser-Assisted In Situ Keratomileusis)

• Uses a femtosecond laser to create a thin corneal flap.
• The excimer laser reshapes the cornea to correct vision.
• Fast recovery – most people resume daily activities in 24–48 hours.

PRK (Photorefractive Keratectomy)

• A flap-free procedure where the corneal surface is gently removed.
• The excimer laser reshapes the cornea for improved focus.
• Recommended for patients with thinner corneas or high astigmatism.

LALEX (SMILE & ATOS – Minimally Invasive Keyhole Surgery)

• A femtosecond laser creates a small 3mm incision to remove a tiny disc of corneal tissue (lenticule).
• Maintains corneal strength, making it an excellent option for active individuals.
• Quick recovery, with minimal disruption to daily life.

Can Laser Eye Surgery Fix High Astigmatism?

Most cases of astigmatism can be treated with laser vision correction, but suitability depends on factors like corneal thickness, shape, and stability.

• Mild to moderate astigmatism: Treatable with LASIK, PRK, or LALEX.
• Higher levels of astigmatism: Often best treated with PRK due to its ability to reshape the cornea without a flap.
• Severe or irregular astigmatism: In some cases, laser surgery may not be recommended, and alternative options such as implantable contact lenses (ICL) or other customized refractive solutions may be explored.

Find Out If You’re a Candidate for Laser Eye Surgery

The best way to determine if laser vision correction can correct your astigmatism is to have a comprehensive eye assessment at LASERSIGHT. Our specialists will evaluate your corneal shape, prescription, and eye health to recommend the most suitable treatment for your needs.

Book Your Free Assessment Today

Take the first step toward clear, glasses-free vision. Enter your postcode to find a LASERSIGHT clinic near you and book your free suitability assessment today.