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The Benefits of Scleral Contact Lenses for Patients with Keratoconus

Edmonton Eye Doctors

29-08-2024

Scleral contact lenses offer numerous benefits, especially for those individuals with keratoconus.

Understanding Keratoconus

Keratoconus is a complex and often misunderstood eye condition that can significantly impact vision if not properly managed.

What is Keratoconus?

Keratoconus is a progressive eye condition where the cornea, which is the clear, dome-shaped front surface of the eye, begins to thin and bulge into a cone-like shape. This irregular shape prevents light from entering the eye correctly, leading to distorted vision. The exact cause of keratoconus is not fully understood, but it is believed to be a combination of genetic, environmental, and hormonal factors.

Symptoms and Diagnosis

The symptoms of keratoconus can vary depending on the severity of the condition. Common symptoms include blurred or distorted vision, increased sensitivity to light, frequent changes in eyeglass prescription, and difficulty seeing at night. Diagnosis typically involves a comprehensive eye exam, including corneal topography, which maps the shape of the cornea and helps detect early signs of keratoconus. Early detection is crucial for managing the condition effectively and preventing further vision deterioration.

Why Scleral Lenses Are Ideal for Keratoconus Patients

Scleral lenses have become a preferred option for many keratoconus patients due to their unique design and benefits.

Better Comfort and Fit

Unlike traditional contact lenses, scleral lenses are larger and vault over the entire cornea, resting on the sclera (the white part of the eye). This design provides a more stable and comfortable fit, especially for those with irregular corneal shapes caused by keratoconus. The fluid reservoir between the lens and the cornea also keeps the eye hydrated, reducing irritation and dryness.

Improved Vision Clarity

Scleral lenses create a smooth optical surface over the irregular cornea, which significantly improves vision clarity for keratoconus patients. By neutralizing the distorted shape of the cornea, these lenses provide sharper and more consistent vision compared to glasses or conventional contact lenses, making them an ideal solution for those struggling with keratoconus.

How Scleral Lenses Work on Irregular Corneas

Scleral contact lenses are specifically designed to address the challenges posed by irregular corneas, offering a reliable solution for patients with conditions like keratoconus.

Creating a New Optical Surface

Scleral contact lenses are larger than standard contact lenses and vault over the entire cornea, resting on the sclera - the white portion of the eye. This design allows the lens to create a smooth, uniform optical surface that corrects the distorted vision caused by an irregular cornea. By effectively replacing the uneven surface of the cornea with a perfectly curved lens, scleral lenses help to restore clearer and more stable vision.

Protection and Hydration

In addition to improving vision, scleral lenses also provide a protective barrier for the cornea. The space between the lens and the cornea is filled with a liquid reservoir that keeps the cornea continuously hydrated. This not only protects the cornea from further damage or irritation but also promotes comfort throughout the day, especially for patients who experience dryness or sensitivity due to their irregular corneas.

A Life-Changing Solution for Keratoconus

Scleral contact lenses offer a life-changing solution for individuals with keratoconus, transforming the way they experience vision. By creating a new, smooth optical surface over the irregular cornea and providing continuous hydration and protection, scleral lenses address both the visual and physical challenges posed by this condition. For many patients, scleral lenses not only restore clear vision but also enhance comfort and quality of life, making them an indispensable tool in the management of keratoconus. If you live in the Edmonton area and are seeking to upgrade your vision with scleral contact lenses, schedule an eye exam and consultation with our optometrists in Edmonton today!

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