Living with dry eyes, keratoconus, or other complex vision conditions can be exhausting. Burning, irritation, blurred vision, and discomfort interfere with daily life — especially when glasses or standard contact lenses don't provide enough relief. Scleral lenses are a specialty contact lens designed for exactly these situations, and they often work when nothing else has.

What are scleral lenses, and how are they different?

Scleral lenses are large-diameter, rigid gas-permeable contact lenses — significantly larger than standard contacts. Where a standard soft lens or RGP sits directly on the cornea, sclerals are sized to vault entirely over the cornea and rest on the white of the eye (the sclera), which has far fewer nerve endings. This single design difference solves several problems at once.

Because the lens doesn't touch the cornea, there's a fluid-filled space between the lens and the eye's surface. That reservoir holds a layer of preservative-free saline against the cornea all day long, delivering two simultaneous benefits: exceptional optics for irregular corneas, and constant hydration for compromised ocular surfaces.

How scleral lenses help severe dry eye disease

For patients with moderate to severe dry eye, scleral lenses can be life-changing. Unlike artificial tears that work for 20 minutes and then evaporate, the saline reservoir under a scleral lens stays in contact with the cornea for the entire wearing period — often 12 hours or more.

What patients tell us this looks like in practice:

Constant moisture and lubrication — no more reaching for drops every 30 minutes
Reduced burning, irritation, and redness by the end of the day
Protection from wind, dust, fans, and air conditioning that normally make symptoms worse
The ability to work on a screen, read, or drive comfortably again
Often, significantly reduced reliance on prescription drops

For patients with severe dry eye from Sjögren's syndrome, ocular surface disease, or post-LASIK dryness, scleral lenses are frequently the most effective single treatment option available.

Sharp vision for keratoconus & irregular corneas

Keratoconus is a progressive thinning that distorts the cornea into a cone-like shape, scattering light and producing blurry, distorted, ghosted vision that glasses and soft contacts can't fully correct. Scleral lenses solve the optical problem by creating a perfectly smooth optical surface in front of the irregular cornea — light passes cleanly through the lens, through the saline layer, and into the eye without the distortion the cornea would otherwise cause.

Many keratoconus patients describe their first day in scleral lenses as the clearest vision they've had in years.

Other conditions scleral lenses treat

Beyond dry eye and keratoconus, scleral lenses are commonly fit for:

Post-LASIK or post-RK corneal irregularity — when refractive surgery leaves an uneven surface
Pellucid marginal degeneration — a keratoconus-like thinning condition
Corneal scarring — from injury, infection, or healing post-transplant
Severe or irregular astigmatism — when toric soft lenses don't deliver crisp vision
Graft-versus-host disease (GVHD) — protecting the inflamed ocular surface
Hard-to-fit eyes generally — patients told they "can't wear contacts" by other providers

Because each lens is custom-designed for the individual eye, scleral lenses can be tailored to nearly any corneal shape or condition.

The fitting process: what to expect

Scleral lens fitting is a multi-visit process, not a same-day prescription. The typical timeline at Ozark Eye:

Consultation and corneal mapping: Review of prior contact lens history, any conditions or surgeries, and high-resolution topography mapping of each cornea
Initial fit and trial wear: First lens design dispensed, in-office trial wear, evaluation of centration, fluid reservoir depth, and vision quality
Refinement visits: 1 to 2 follow-ups to fine-tune fit and prescription based on real-world wear feedback
Final lenses and patient training: Final lenses arrive, patient is trained on insertion (with saline), removal (with a small suction tool), and lens care
Long-term follow-up: 1 month, 3 months, then every 6 to 12 months ongoing

Total time from first consultation to final lenses is typically 4 to 8 weeks.

Common questions about scleral lenses

Do scleral lenses hurt? Most patients are surprised by how comfortable they are. The lens rests on the less-sensitive sclera, not the cornea, and the saline reservoir cushions the eye.

What does insurance cover? Medical insurance frequently covers significant portions of scleral fitting and lens cost for documented conditions like keratoconus, irregular astigmatism, post-surgical eyes, and severe dry eye disease. We verify benefits before fitting.

How long do scleral lenses last? Typically 1 to 2 years per pair with proper care.

Can I sleep in them? Generally no, unless specifically directed. They're a daily-wear lens designed to come out at night.

The power of scleral lenses.