Can LASIK Correct Astigmatism?

Astigmatism occurs when the cornea or the lens of the eye has an irregular curvature. Instead of being evenly rounded, the surface is shaped more like a rugby ball than a football. This irregularity causes light rays to causes light rays to focus unevenly on the retina, which leads to blurred or distorted vision.

People with astigmatism often describe their sight as unclear, with objects appearing stretched, doubled or shadowed. Some experience eye discomfort after reading or using screens for long periods. Night driving can be especially challenging because lights appear streaked or haloed.

Astigmatism occurs when the eye’s surface is not perfectly round, affecting how light enters and focuses. It can develop in two areas: the cornea (corneal astigmatism) or the internal lens (lenticular astigmatism). LASIK can treat corneal astigmatism, which is the more common type.

Corneal astigmatism is further divided into:

• Regular Astigmatism: The cornea is evenly curved in one direction, resembling the shape of a football. This is the most common type and responds very well to LASIK.
• Irregular Astigmatism: The cornea’s curvature is uneven in multiple directions, often caused by injuries, infections, scarring or conditions like keratoconus. These cases may require advanced LASIK techniques or alternative treatments like photorefractive keratectomy.

While glasses and contact lenses are common correction options, many working adults seek a more lasting solution. LASIK offers the possibility of clear, sharper vision without the daily inconvenience of spectacles or lenses.

When patients are carefully assessed, LASIK for astigmatism has high success rates. Most individuals achieve a significant reduction in blurriness, with many able to function without glasses or contact lenses in their daily routines. This can be particularly appealing to working adults who spend long hours at desks or in meetings where eyewear may feel inconvenient.

The corneal reshaping achieved by LASIK is permanent. However, natural changes in the eyes, such as age-related long-sightedness or cataract formation, can affect vision later in life. Some patients may require enhancements or other procedures in the future.

Astigmatism is widespread, but not everyone who has it will be a good candidate for LASIK. Suitability depends on age, prescription stability, corneal health and other medical considerations. Generally, you may be eligible if:

• You are 21 years or older
• Your prescription is stable for at least one year
• You have a healthy cornea with sufficient thickness
• Your degree of astigmatism falls within treatable limits
• You do not have any active eye diseases or severe dry eyes

For a precise and personalised assessment, consulting with an ophthalmologist is the only way to determine if LASIK is the right solution for you.

For patients in Singapore, undergoing LASIK at MOH-approved centres provides the assurance that procedures are performed under the highest safety standards. With advanced techniques, outcomes can be further refined to match the unique structure of each eye.

To determine if laser vision correction is right for you and to review your treatment options, book a consultation with our clinic. Ophthalmologist Dr Cordelia Chan can provide a detailed assessment of your specific case and guide you toward the best solution for your astigmatism.