Keratoconus and Scleral Lenses: A Life-Changing Solution for Clear Vision
Understanding Keratoconus
Keratoconus is a progressive eye condition in which the cornea (the clear, dome-shaped front surface of the eye) thins and bulges into a cone shape. This irregular shape distorts light entering the eye, leading to blurred or distorted vision. It often starts in adolescence or early adulthood and gradually worsens over time.
Symptoms of Keratoconus
Individuals with keratoconus may experience:
Blurred or distorted vision
Increased sensitivity to light and glare
Frequent changes in prescription glasses
Difficulty seeing at night
Eye strain and headaches
As the condition progresses, glasses or standard contact lenses may no longer provide clear vision, requiring more specialized solutions.
Causes and Risk Factors
While the exact cause of keratoconus is unknown, several factors may contribute to its development, including:
Genetic predisposition (family history of keratoconus)
Excessive eye rubbing
Certain systemic conditions like Down syndrome or connective tissue disorders
Environmental factors such as UV exposure
Treatment Options for Keratoconus
Treatment depends on the severity of the condition. In early stages, glasses or soft contact lenses may suffice. However, as the cornea becomes more irregular, specialized contact lenses are often required. In advanced cases, surgical options like corneal cross-linking, intracorneal ring segments, or corneal transplants may be considered.
Scleral Lenses: A Game-Changer for Keratoconus
Scleral lenses are one of the best non-surgical solutions for keratoconus. Unlike traditional contact lenses, scleral lenses are larger and rest on the white part of the eye (the sclera) rather than the cornea. This design creates a fluid-filled reservoir between the lens and the cornea, providing several key benefits:
Benefits of Scleral Lenses for Keratoconus
Superior Vision Correction – Scleral lenses create a smooth optical surface that masks the irregular shape of the cornea, significantly improving vision.
Enhanced Comfort – Because they rest on the sclera and not the sensitive cornea, they provide greater comfort, even for individuals with severe keratoconus.
Reduced Dry Eye Symptoms – The liquid layer trapped beneath the lens keeps the cornea hydrated, making them an excellent option for those with dry eye disease.
Stable Fit – Unlike traditional contact lenses that may shift or fall out due to corneal irregularities, scleral lenses remain stable on the eye, providing consistent vision.
Long-Lasting and Durable – Made from high-quality gas-permeable materials, scleral lenses are durable and offer excellent oxygen permeability to maintain corneal health.
Adjusting to Scleral Lenses
While scleral lenses offer remarkable benefits, they do require an adjustment period. Here’s what to expect:
Fitting Process – A specialized eye care professional will custom-design the lenses to fit your unique corneal shape.
Insertion & Removal – Unlike standard contacts, scleral lenses require a special technique for insertion and removal, which your optometrist will teach you.
Cleaning & Maintenance – Proper cleaning and storage are essential to keep lenses free from debris and bacteria.
Who Can Benefit from Scleral Lenses?
Scleral lenses are ideal for:
✅ Individuals with moderate to severe keratoconus
✅ Patients who struggle with traditional contact lenses
✅ Those experiencing severe dry eye symptoms
✅ Individuals with post-surgical corneal irregularities or corneal scarring
Conclusion
For those with keratoconus, scleral lenses offer a life-changing solution that provides exceptional vision correction, comfort, and corneal protection. If you or a loved one has been struggling with vision challenges due to keratoconus, consult with an optometrist specializing in scleral lenses to explore this highly effective option.