Can laser eye surgery fix astigmatism?

If you have been told you have astigmatism, you may have heard confusing things. Some people think it is a disease. Some think it means you cannot have laser eye surgery. Others think it is “too complicated.”

Astigmatism is common. And in many cases, laser eye surgery can be used to treat it. But suitability depends on your eyes, your prescription, and your corneal shape. This guide explains what astigmatism is, how laser treatment may help, and what to expect from an assessment.

What is astigmatism?

Astigmatism is a focusing problem caused by the shape of the eye. Most often, it comes from the cornea being shaped more like a rugby ball than a soccer ball.

That uneven shape means light does not focus neatly at one point. It can cause:

  • blurry or distorted vision
  • shadowing or “ghosting” around letters
  • headaches or eye strain
  • trouble with night driving due to glare

Astigmatism can exist on its own or along with short sight or long sight.

Can laser eye surgery treat astigmatism?

Often, yes.

Laser eye surgery aims to reshape the cornea. Because astigmatism is related to corneal shape, reshaping can reduce it for suitable people.

Different procedures may be used depending on your eye measurements, such as:

Your surgeon chooses the safest and most appropriate option based on your cornea and prescription. This can also influence the cost of laser eye surgery in Sydney.

How does the laser “fix” it?

The laser removes microscopic amounts of corneal tissue in a specific pattern.

Instead of reshaping the cornea evenly, the laser reshapes more in certain areas to make the cornea more regular. The aim is to reduce the uneven curve that causes astigmatism.

This plan is customised. It is based on careful measurements taken at your assessment.

What affects whether you are suitable?

Suitability depends on several factors, including:

  • how strong your prescription is
  • corneal thickness
  • corneal shape and stability
  • eye health
  • dry eye symptoms
  • previous eye conditions or injuries
  • your work and lifestyle needs

Some people are not suitable for laser treatment. In that case, other options may be discussed.

What results can you expect?

Results vary from person to person.

Many suitable people aim to reduce reliance on glasses or contact lenses for everyday tasks. Some still use glasses for certain activities, like fine print, long screen days, or night driving.

It is also important to remember that reading vision changes with age. Even if astigmatism is treated, you may still need reading glasses later due to normal ageing changes in the lens.

The goal of your assessment is to understand what is realistic for your eyes.

What is the assessment like?

A good assessment for astigmatism will usually include:

  • detailed corneal mapping
  • prescription testing
  • eye health checks
  • dry eye testing
  • discussion about your daily visual demands

This is where your surgeon can explain:

  • whether your astigmatism is treatable with laser
  • which procedure may be safest for you
  • what outcomes are realistic
  • what risks and side effects matter for your eyes

Are there alternatives if you are not suitable?

Yes.

If laser is not suitable, alternatives may include:

The right option depends on your eye health and your goals.

If you want a simple first step, start with our free self-test.

Take our free 2-minute suitability self-test to explore which vision correction options may suit your eyes and lifestyle.

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Hi, I’m Dr. Erica Darian-Smith

I’m a FRANZCO ophthalmic surgeon focused on refractive surgery. I trained in Sydney at Prince of Wales Hospital, then completed a two-year corneal and refractive fellowship in Toronto, Canada. I also hold a Graduate Diploma in Cataract and Refractive Surgery and a Master of Medicine in Ophthalmic Sciences from the University of Sydney, and I lecture there as a Clinical Lecturer. I am a Fellow of the World College of Refractive Surgery and Vision Sciences and have a subspecialty interest in treating presbyopia.

I take time to listen, explain options clearly, and guide you through each step so you can make informed choices with confidence and calm. I am passionate about getting you your best visual outcomes.

Owner
FRANZCO, FWCRS, MMed, MBBS

Hi, I’m Dr. Mitch Lee

I’m a FRANZCO trained ophthalmic surgeon. My work covers refractive surgery, cataract surgery, complex anterior segment and lens surgery, and conditions of the retina and vitreous. I completed medical training at the University of Sydney and Royal Prince Alfred Hospital, then completed ophthalmology training in the Prince of Wales Hospital network. I am trained in refractive surgery and have completed the Forefront Refractive Surgery Course run by the highly respected London Vision Clinic. I have further fellowship level training in complex anterior segment surgery and vitreoretinal surgery.

In addition to my work with Eagle Eye Surgeons, I am the Head of Department for Ophthalmology at Nepean Hospital and have led the expansion of publicly funded eye surgery in the Nepean Blue Mountains Local Health District.

I focus on clear explanations, careful planning, and follow-up that keeps you supported at every stage, always.

Owner
FRANZCO, MMed(Critical Care), MBBS(Hons), BSc