Scleral Lenses vs. Traditional Contacts: What’s the Difference?

If you’ve experienced discomfort, blurry vision, or difficulty wearing contact lenses, you may be wondering whether there’s a better option. At Eye 2 Eye Vision Center, we often help patients compare scleral lenses and traditional contact lenses to determine which solution best fits their vision needs - especially for those with conditions like keratoconus or chronic dry eye.

Understanding how these lenses differ can help you make a confident, informed decision.

Traditional Contact Lenses

Traditional contact lenses include soft lenses and rigid gas permeable (RGP) lenses.

Soft contact lenses are the most common. They are thin, flexible, and rest directly on the cornea - the clear front surface of the eye. Because they conform to the eye’s shape, they are typically comfortable and easy to adapt to. Many patients do well with soft lenses for everyday vision correction.

RGP lenses are smaller and firmer than soft lenses. They also sit on the cornea and can provide sharper vision in certain cases, particularly with astigmatism. However, they may require an adjustment period and can feel less stable for some wearers.

For individuals with healthy, regularly shaped corneas, traditional contact lenses are often effective and convenient. But they may not perform well when the cornea is irregular or when significant dryness is present.

What Makes Scleral Lenses Different?

Scleral lenses are much larger in diameter than traditional contacts. Instead of resting on the cornea, they extend beyond it and sit on the sclera - the white part of the eye. This design allows the lens to vault over the cornea rather than touch it directly.

Between the back surface of the lens and the front of the cornea, a space is created. This space is filled with sterile saline during insertion and forms a reservoir of fluid that remains in place throughout the day. The result is a continuous layer of hydration that protects and cushions the cornea.

Because scleral lenses do not press on the cornea, they are especially helpful for patients with:

• Keratoconus
• Corneal irregularities
• Severe dry eye
• Post-surgical corneas
• Contact lens intolerance

Each scleral lens is custom-designed to match the unique shape of the patient’s eye, ensuring a precise and stable fit.

Comfort and Stability

For patients with normal corneas and mild prescriptions, soft contact lenses are often comfortable and convenient.

However, when the cornea has an irregular shape, traditional lenses may shift, cause irritation, or deliver inconsistent vision. Scleral lenses offer increased stability because they rest on the sclera, which is less sensitive than the cornea. The fluid layer beneath the lens also acts as a cushion, reducing friction and improving overall comfort.

Many patients who previously struggled with contacts report that scleral lenses feel surprisingly comfortable once properly fitted.

Visual Clarity

One of the most significant differences between these options is vision quality.

Soft lenses conform to the shape of the cornea. If the cornea is uneven, the lens will follow those irregularities, potentially leading to distorted or fluctuating vision.

Scleral lenses, on the other hand, create a smooth optical surface over the eye. The fluid-filled space beneath the lens helps neutralize corneal irregularities, providing clearer and more stable vision. This benefit is especially important for individuals with keratoconus.

Scleral Lenses and Keratoconus

Keratoconus is a progressive eye condition in which the cornea thins and gradually bulges outward into a cone-like shape. This distortion can cause blurred vision, glare, halos, and increasing astigmatism that glasses or soft contacts may not adequately correct.

Because scleral lenses vault over the cornea and do not rest directly on the cone-shaped area, they can accommodate the bulge while creating a smooth refractive surface. This often results in significantly sharper vision compared to traditional lenses.

For many patients with keratoconus, scleral lenses provide both improved clarity and greater comfort, making them one of the most effective non-surgical management options available.

Clear Vision Starts with the Right Lens

Traditional contact lenses are an excellent solution for many people, offering convenience and reliable vision correction. But for patients with corneal irregularities, dry eye, or keratoconus, scleral lenses provide a unique design that enhances comfort and delivers more stable, clearer vision.

Ready to find the right fit for your vision? Contact Eye 2 Eye Vision Center to schedule a comprehensive contact lens evaluation. Visit our office in Williamsburg, Virginia, or call (757) 259-2300 to book an appointment today.