Both scleral lenses and rigid gas permeable (RGP) contacts are made from the same family of rigid oxygen-permeable plastic. What makes them behave so differently is their size. A traditional RGP lens is small — about 9 to 10 millimeters in diameter — and sits directly on the cornea, moving slightly with each blink. A scleral lens is much larger, typically 14 to 18 millimeters, and vaults completely over the cornea to rest gently on the white of the eye (the sclera). That single difference changes almost everything about how the two lenses feel, perform, and are fitted.
Neither option is universally better. Traditional RGPs are smaller, less expensive, easier to insert for most patients, and work beautifully for mild keratoconus and high astigmatism. Scleral lenses are the gold standard for advanced corneal disease, severe dry eye, post-surgical corneas, and patients who prioritize all-day comfort. At PersonalEyes we fit both — and the decision comes down to your specific corneas, lifestyle, and preferences. Dr. Patel will walk you through both options during a specialty contact lens consultation.
Learn more: Deeper dive on scleral lenses or RGP lenses individually. This page focuses on how to choose between them.
Side-by-Side
A specialty contact lens fitting is more involved than a standard soft lens visit. For both scleral and RGP lenses, the first appointment includes detailed corneal topography mapping, anterior segment imaging, tear film assessment, and a discussion of your goals and lifestyle. Dr. Patel then orders a diagnostic lens set based on your corneal curvature and refractive error. You will typically come back 2 to 4 times over 4 to 8 weeks while we fine-tune the fit, check the lens behavior under the slit lamp, and verify that your vision is sharp and stable throughout the day.
Scleral fittings generally take longer than RGP fittings because there are more parameters to dial in — the vault over the cornea, the edge landing on the sclera, the fluid reservoir height, and any peripheral toricity for astigmatism. That complexity is why scleral lenses cost more. But for the right patient, the result — all-day comfort with sharp, stable vision — is life-changing. We have patients who describe scleral lenses as the difference between enduring their contacts and forgetting they are wearing them.
At PersonalEyes, we verify your medical insurance benefits before the fitting begins. Many vision plans cover specialty lenses partially or fully when they are medically necessary for conditions like keratoconus, pellucid marginal degeneration, post-refractive-surgery ectasia, or post-corneal-transplant management. You will know exactly what to expect financially before we order any lenses.
Frequently Asked Questions
For most moderate to advanced keratoconus patients, scleral lenses are more comfortable and provide more stable vision because they vault over the distorted cornea and rest on the white of the eye. However, some early keratoconus patients do well with traditional RGP lenses, which are smaller and easier to handle. The best choice depends on the stage of disease, corneal shape, and personal comfort preferences. Dr. Patel evaluates both options during a specialty lens consultation.
Scleral lenses are generally more comfortable from day one because they do not touch the sensitive cornea and are filled with preservative-free saline that keeps the eye lubricated all day. RGP lenses can feel foreign for the first week or two while your eyes adapt. After adaptation, many RGP wearers report good comfort, but scleral lenses remain the gold standard for comfort-sensitive patients, dry eye patients, and irregular corneas.
Both lens types typically provide sharper vision than soft contacts for patients with irregular astigmatism, keratoconus, or post-surgical corneas. Scleral lenses have a slight edge because they create a smooth refractive surface by vaulting over corneal irregularities completely. For regular prescriptions without corneal disease, the difference is small. For keratoconus and irregular corneas, scleral lenses typically deliver measurably better acuity.
Pricing varies by complexity and insurance coverage. Traditional RGP lenses are generally less expensive, with a typical first-year cost between $500 and $1,200 including the fitting and lenses. Scleral lenses are more complex to design and cost more — typically $2,000 to $4,500 in the first year depending on how many fitting visits are needed. Medical insurance may cover specialty lenses when they are medically necessary for conditions like keratoconus. We verify benefits in advance.
Yes, and this is one of the most common reasons patients come to us. Many long-time RGP wearers find that scleral lenses eliminate the chronic discomfort they had accepted as normal. If you are experiencing dryness, foreign-body sensation, or lens awareness throughout the day, a scleral lens consultation is absolutely worth it. Dr. Patel can typically refit you into sclerals using your current prescription as a starting point.
RGP lenses are still widely used and very effective for the right patients — they are smaller, easier to handle, faster to insert, and more affordable. Sclerals are not universally better; they are a better choice for more advanced corneal disease, severe dry eye, and patients who prioritize comfort. We fit both and let your specific corneas, comfort profile, and budget determine the recommendation.