Astigmatism is a common visual defect resulting from an irregular curvature of the cornea or crystalline lens, causing blurred or distorted vision at all distances. Fortunately, there are contact lenses specially designed to correct this problem: toric lenses.
What are toric lenses?
Unlike conventional spherical lenses, toric lenses are specially designed to compensate for astigmatism by adjusting to the unique shape of the eye. These lenses have different optical powers depending on the axis of the astigmatism, helping to focus light correctly on the retina and improve sharpness of vision.
Types of lenses for astigmatism
There are several types of toric lenses to suit every wearer's needs and lifestyle:
• 1-day lenses: ideal for people looking for minimum maintenance and optimum hygiene. They are discarded after one day's use.
• Monthly or bi-monthly lenses: Reusable, they require daily cleaning but offer a more economical option for extended wear.
• Rigid gas permeable lenses (RGP): Less common, these lenses offer better visual acuity, especially for more pronounced astigmatism.
How to choose the right toric lens?
Choosing the right lens depends on a number of factors, including the degree of astigmatism, desired wearing frequency, comfort and lifestyle. It's essential to consult an optometrist for a complete eye examination and personalized fitting.
Tips for a successful fitting
• Follow your optometrist's recommendations to ensure optimal, comfortable wear.
• Follow the recommended care instructions for reusable lenses to avoid eye infections.
• Try them on for size: some toric lenses require fitting before you can find the pair that's right for you.
Contact lenses for astigmatism offer an excellent alternative to glasses, providing clear vision and increased comfort. If you're thinking of trying them out, make an appointment with an optometrist at IRIS for a personalized evaluation and fitting!
