Scleral Lenses: The Optimal Visual Solution for Advanced Keratoconus
What Makes Scleral Lenses Different?
Scleral lenses are large-diameter rigid contact lenses (15–24 mm) that rest on the white of the eye (the sclera) instead of directly on the cornea. The space between the lens and the cornea is filled with saline solution — creating a smooth, spherical optical surface in front of the distorted cornea.
Why Are They Best for Advanced Keratoconus?
They completely bypass the irregular shape of the cornea — light passes through their smooth surface and the saline solution, ignoring the distortion underneath. Wearing comfort is greater than small rigid (RGP) lenses, and they provide continuous corneal hydration.
Comparing Lens Options
Glasses for early stages only. RGP lenses offer good correction but moderate comfort. Hybrid lenses for moderate stages. Scleral lenses are the best visually and most comfortable option for advanced cases.
Do They Replace Surgery?
Scleral lenses don't halt the progression of the disease nor do they treat it — they are an excellent compensatory visual solution. Some patients live comfortably with them for years, while others ultimately require ring implantation or corneal transplantation.
For evaluation and to try scleral lenses, contact Dr. Ahmed Shaarawy's clinic.
Is this how you see the world?
Keratoconus symptoms as you actually see them
Drag the divider to compare healthy vision with what a keratoconus patient sees. If the image looks like what you experience, it's time for a specialist diagnostic exam.
Driving at night
Starbursts and halos around oncoming headlights — the earliest and hardest KC symptom
Read this text clearly
A healthy cornea is the key to clear vision
Read this text clearly
A healthy cornea is the key to clear vision
Reading
Ghosting and double letters — as if every word is printed on top of itself
Eye chart
Wavy, distorted letters — won't sharpen with regular glasses alone
Early diagnosis halts corneal progression in 95% of cases
Have a related case?
Send your topography, OCT, or symptoms to Dr. Shaarawy. We respond in English within 24 hours.