Ortho K for Astigmatism

Treatment Options for Astigmatism

Glasses are often the default treatment for astigmatism. They provide a straightforward and effective way to address the irregular curvature of the cornea, allowing for clear vision. They are easy to use and can be tailored to correct other vision problems such as myopia or hyperopia.

Contact lenses offer another solution. They provide a wider field of vision compared to glasses and are less obtrusive in everyday activities. The lenses come in various types, including toric contact lenses specifically designed for astigmatism. These lenses are weighted to ensure they remain in the correct position on the eye, providing clear and stable vision throughout the day.

Laser eye surgery, such as LASIK, is a more permanent solution. This procedure reshapes the cornea to correct the irregularities causing astigmatism. It can be highly effective, but it’s also more invasive and comes with higher upfront costs and potential risks.

Ortho-K for Astigmatism Correction

One of the most innovative treatments for astigmatism is Orthokeratology, or Ortho-K. Specially designed contact lenses are prescribed to be worn overnight. As you sleep, these lenses gently reshape the cornea, the transparent front part of your eye. By the time you wake up, your cornea has been moulded to a shape that allows for clear vision without the need for glasses or daytime contact lenses; a significant advantage for those with active lifestyles.

A key benefits of Ortho-K is that it is non-surgical and reversible. If you decide to stop using Ortho-K lenses, your cornea will gradually return to its original shape, and your vision will revert to its previous state. This makes Ortho-K an attractive option for those who are hesitant about undergoing permanent surgical procedures.

Another significant advantage of Ortho-K is its suitability for all ages. It’s a great option for children, teenagers, and adults alike. For children, in particular, Ortho-K can help manage the progression of myopia, reducing the risk of short-sightedness and more serious eye conditions later in life.

Additionally, because the lenses are worn at night, there is less risk of dryness and irritation, which can be a common issue with traditional contact lenses worn during the day.

Getting the Right Ortho-K Lenses for Astigmatism

Which type of Ortho-K lenses should you choose for astigmatism? There are two main designs: spherical and toric.

Spherical Ortho-K lenses are typically used for mild to moderate cases of astigmatism. These lenses reshape the cornea uniformly, which can be effective for many individuals.

However, for those with pronounced astigmatism, we recommend toric Ortho-K lenses. These lenses have a more complex design that allows for targeted reshaping, addressing the specific irregularities in the cornea’s curvature.

Choosing between spherical and toric Ortho-K lenses depends on the degree of your astigmatism and the specific characteristics of your cornea. During the initial consultation, we perform a detailed corneal topography. This imaging technique maps the surface of your cornea in detail, providing crucial information about its shape and any variations in elevation. This data helps us determine which lens design will provide the best fit and most effective correction.

Several factors influence the choice of Ortho-K lenses. For example, the elevation differences across your cornea and the overall corneal toricity are important considerations. A customised approach ensures that the lenses fit comfortably and provide optimal vision correction. It’s not a one-size-fits-all solution; each pair of lenses is tailored to meet the unique needs of your eyes.