Keratoconus gradually thins and bulges the cornea into a cone shape, which can blur and distort vision.
The word keratoconus comes from the Greek terms for cornea and cone. As the cornea becomes cone-shaped, light entering the eye no longer focuses properly, leading to increasing vision problems.
Because glasses rest outside the eye, they cannot match the irregular surface of a cone-shaped cornea. This mismatch leaves many people with keratoconus seeing little improvement when wearing standard eyeglasses.
Scleral lenses vault over the cornea and rest on the sclera, creating a smooth optical surface and a fluid cushion of saline. By avoiding direct contact with the damaged cornea, they provide clear, comfortable vision.
Scleral lenses are larger, custom-designed rigid lenses that sit on the white part of the eye rather than on the cornea itself.
The lens forms a dome over the cornea, trapping a reservoir of sterile saline between the lens and the eye. This liquid layer keeps the cornea bathed in moisture and contributes to both comfort and healing.
Traditional gas permeable lenses allow oxygen to pass through but can feel uncomfortable because they move with every blink. Scleral lenses spread their weight over a larger, less sensitive area, resulting in more stable and comfortable vision.
Patients often notice two primary advantages: enhanced comfort and clearer vision.
Many users report that they barely feel the lenses once they are in place.
While glasses may provide 20/200 vision for someone with keratoconus, scleral lenses often improve acuity to 20/30 or even 20/20. Because the lenses sit firmly on the eye, vision remains stable and consistent during everyday activities.
Proper fitting and ongoing care are key to long-term success with scleral lenses.
After an accurate fitting, most people notice sharper clarity, richer color, and better contrast. Comfortable wear time usually extends throughout the entire day, allowing normal activities without eye strain.
Scleral lenses must be customized to each eye’s unique shape and the specific stage of keratoconus. Working with an eye care provider experienced in specialty lens fitting helps ensure optimal vision and comfort.
If keratoconus is affecting your daily life, ask our team about scleral lenses. We are here to guide you through evaluation, fitting, and ongoing support so you can enjoy clear, comfortable vision every day.
