Scleral Lenses vs. Soft Contacts: Which Is Right for Keratoconus & Severe Dry Eye in Boulder County?

Contact lenses are not one-size-fits-all, especially for people with keratoconus or severe dry eye. While traditional soft contacts work well for many patients, irregular corneas and significant ocular surface dryness can make standard lenses uncomfortable or unable to provide consistently clear vision. At Mountain Top Eye Care, we help patients throughout Boulder County determine whether soft contact lenses or custom scleral lenses offer the right combination of vision, comfort, and eye health.

How Soft Contact Lenses Work

Soft contact lenses sit directly over the cornea and conform closely to its shape. They are lightweight, flexible, and often easy to adapt to, making them a convenient choice for many contact lens wearers.

Custom soft contacts may be appropriate for certain patients with mild to moderate keratoconus. However, as the cornea becomes more irregular, a soft lens may follow that irregular shape instead of creating the smooth optical surface needed for sharper vision.

Severe dry eye can also make soft contacts more difficult to tolerate. When the tear film is unstable, lenses may begin to feel dry, irritating, or uncomfortable as the day continues.

Why Scleral Lenses Are Different

Scleral lenses are larger-diameter, gas-permeable lenses that vault over the cornea rather than resting directly on it. They land on the sclera, which is the white portion of the eye.

Before insertion, the space between the lens and cornea is filled with preservative-free saline. This creates a smooth optical surface while maintaining a fluid reservoir over the cornea.

For patients with complex corneal or dry eye conditions, scleral lenses may provide several advantages:

•          More stable vision with irregular corneas

•          A fluid reservoir that can support comfort for severe dry eye

•          Less direct contact with sensitive or irregular corneal tissue

•          Greater lens stability during blinking and daily activities

•          Custom fitting based on the unique shape of the eye

Scleral Lenses for Keratoconus

Keratoconus causes the cornea to become thinner and develop a cone-like shape. This irregular surface can create distorted or blurred vision that glasses and standard contacts may not fully correct.

Because scleral lenses vault over the cornea, they create a new, smooth refractive surface instead of conforming to the cone-shaped cornea. For many patients with moderate or advanced keratoconus, this can provide clearer and more consistent vision.

Scleral Lenses for Severe Dry Eye

Patients with significant dry eye may struggle to wear traditional soft contacts comfortably. Scleral lenses offer a different approach because the cornea remains beneath a reservoir of fluid while the lens is being worn.

This does not mean scleral lenses are appropriate for every case of dry eye. We evaluate the health of the ocular surface, tear film, cornea, and overall contact lens needs before recommending a specific option.

Finding the Right Contact Lens in Lafayette

Choosing between scleral lenses and soft contacts depends on your corneal shape, prescription, dry eye severity, lifestyle, and previous contact lens experience. A customized fitting allows us to determine which lens design can provide the best balance of comfort and clear vision for your eyes.

Schedule a contact lens exam with Mountain Top Eye Care to learn more about specialty contact lenses and find the right solution for your comfort. Visit our office in Lafayette, CO, or call (720) 915-0505 to book an appointment today.