Understanding astigmatism: Can it be corrected with glasses or contact lenses?
Astigmatism is a relatively common vision anomaly that can affect people of all ages. It causes blurred or distorted vision, both near and far. But the good news is that there are simple and effective solutions to correct this condition.
What is astigmatism?
Astigmatism is caused by an irregularity in the curvature of the cornea (the front surface of the eye) or the crystalline lens (the inner lens). Rather than being perfectly round like a soccer ball, the cornea of an astigmatic eye is more oval, like a football. This irregular shape prevents light from focusing properly on the retina, resulting in blurred or distorted vision.
There are two main types of astigmatism:
- Corneal astigmatism, linked to the shape of the cornea.
- Lenticular astigmatism, linked to an irregularity in the crystalline lens.
It can also be combined with other vision problems such as myopia (difficulty seeing at a distance) or hypermetropia (difficulty seeing up close).
Symptoms of astigmatism
Here are a few signs that may indicate the presence of astigmatism:
- Blurred or distorted vision at all distances
- Frequent headaches
- Eye fatigue, especially after reading or using a screen
- Difficulty seeing clearly at night
An eye examination by an optometrist is essential to make an accurate diagnosis.
Can astigmatism be corrected with glasses?
Yes, glasses are a very effective and commonly used option for correcting astigmatism. They are fitted with toric lenses, specially designed to compensate for the irregularity of the cornea. These lenses redirect the light correctly onto the retina, significantly improving visual clarity.
Glasses are often preferred by children and people who spend a lot of time in front of a screen, or those who prefer a simple, maintenance-free solution.
What about contact lenses?
Contact lenses are also an excellent option for correcting astigmatism, thanks in particular to toric lenses. These lenses have a special design that allows them to remain firmly in place on the eye despite movement, ensuring stable correction.
There are several types of lenses for astigmatism:
- Toric soft lenses: comfortable and available in daily, twice-weekly or monthly versions.
- Rigid gas permeable lenses (RGP): these offer very precise correction, especially for more pronounced astigmatism.
- Scleral lenses: used in more complex cases, particularly when other options are not effective.
Your optometrist will be able to guide you in choosing the best option, depending on your lifestyle, your visual needs and the shape of your eye.
Astigmatism may seem complex, but it can be corrected effectively with glasses or adapted contact lenses. Whether you prefer the simplicity of glasses or the discretion of contact lenses, your optometrist will be able to recommend the solution that suits you best. Don't wait any longer to improve your visual comfort and make the most of every detail of everyday life!
