Keratoconus is a progressive eye disorder that affects the cornea, the clear front surface of the eye. It causes the cornea to gradually thin and bulge into a cone-like shape, resulting in distorted vision. While the exact cause of keratoconus is unknown, it is believed to be influenced by a combination of genetic and environmental factors. Symptoms of keratoconus include blurry or distorted vision, increased sensitivity to light, and frequent changes in prescription glasses or contacts.
Scleral contact lenses are a specialized type of contact lens that offer unique advantages for individuals with keratoconus. Unlike traditional contact lenses that rest on the cornea, scleral lenses vault over the cornea and rest on the sclera, the white part of the eye. These lenses are larger in diameter, ranging from 14 to 24 millimeters, and create a tear-filled chamber between the lens and the cornea.
Scleral lenses are made from highly oxygen-permeable materials, allowing for optimal oxygen flow to the cornea. This promotes corneal health and minimizes discomfort during lens wear. The tear-filled chamber created by the lenses acts as a cushion, providing a smooth optical surface and improving visual clarity for individuals with irregular corneas caused by keratoconus.
Scleral lenses effectively address the visual challenges associated with keratoconus. By vaulting over the cornea and resting on the sclera, these lenses provide a uniform refractive surface, compensating for the irregular shape of the cornea. This results in improved vision quality and reduced visual distortions.
Scleral lenses also offer a more stable fit compared to traditional contact lenses, making them an ideal option for individuals with irregular corneas. Their larger size and rigid nature ensure that the lenses stay in place and do not move with blinking or eye movements. This enhances comfort and reduces the risk of lens dislodgment, particularly for individuals with active lifestyles.
One of the primary advantages is their ability to provide clear and stable vision, even for those with severe corneal irregularities. This can greatly enhance daily activities such as reading, driving, and watching television.
Additionally, the tear-filled chamber created by scleral lenses provides a protective barrier between the cornea and the outside environment. This helps to shield the cornea from irritants, allergens, and other external factors that can exacerbate the symptoms of keratoconus. Additionally, the constant lubrication and hydration provided by the lenses can alleviate dryness and discomfort, allowing for extended wear time without irritation.
Scleral lenses are also highly customizable to each individual's unique corneal shape and visual needs. They can be tailored to provide optimal fit, comfort, and visual acuity, ensuring the best possible outcome for keratoconus patients. The expertise of an optometrist is crucial in the fitting and adjustment process to achieve the desired results.
Scleral contact lenses have revolutionized the treatment of keratoconus, offering a highly effective and comfortable solution for individuals with this progressive eye condition. By vaulting over the cornea and resting on the sclera, these lenses provide clear vision, stability, and comfort.
If you or someone you know has keratoconus, schedule a consultation with our professionals to explore the benefits of scleral contact lenses. Visit Today’s Vision Barker Cypress at our office in Cypress, Texas. Call (281) 758-3083 to book an appointment today.