Keratoconus is a progressive eye condition where the cornea, the clear front surface of the eye, thins and gradually bulges outward into a cone shape. This abnormal shape distorts vision, causing blurry and distorted sight, increased light sensitivity, and frequent changes in eyeglass prescriptions. Keratoconus can impact daily activities such as reading, driving, and even social interactions if left untreated. 

Progression

Keratoconus usually starts in the teens or early twenties and can progress over several years or decades. In some cases, it may stabilize by the time a person reaches their forties. 

Impact on Vision

The cone-shaped cornea disrupts the way light focuses on the retina, leading to various vision problems. 

Symptoms

Besides blurry and distorted vision, other symptoms can include double vision, increased sensitivity to light and glare, and seeing halos or streaks around lights. 

Treatment

While there's no cure for keratoconus, various treatments can help manage the condition and improve vision, including eyeglasses, contact lenses (including specialty lenses), corneal collagen cross-linking, and in severe cases, corneal transplantation. 

 Scleral lenses are larger in diameter than traditional lenses, which rest on the sclera (the white part of the eye) and create a vault over the cornea, effectively neutralizing the corneal irregularities caused by keratoconus.

Improved Vision

Scleral lenses can significantly improve vision in keratoconus patients by creating a smooth surface for light to focus on the retina. 

Comfort

Unlike traditional rigid gas permeable (RGP) lenses, scleral lenses rest on the sclera, which is less sensitive than the cornea, leading to increased comfort for many wearers. 

Stability

The larger size of scleral lenses provides greater stability on the eye, reducing lens movement and improving vision, especially in cases of advanced keratoconus. 

In addition to keratoconus, scleral lenses can also be beneficial for:

• Post-surgical or post-traumatic corneal irregularities.
• Severe dry eye conditions like Sjogren's syndrome.
• High prescriptions that are difficult to correct with glasses

Important Considerations:

• While scleral lenses are generally well-tolerated, proper fitting and care are crucial for optimal vision and comfort. 
• Scleral lenses can be more expensive than other contact lens options. 
• Regular follow-up appointments with an eye care professional are essential for monitoring the fit and health of your eyes while wearing scleral lenses.