Understanding Keratoconus
What is keratoconus?
Keratoconus, often referred to as “KC,” is an eye condition in which the cornea weakens and thins over time, causing the development of a cone-like bulge and optical irregularity of the cornea. Keratoconus can result in significant visual loss and may lead to corneal transplant in severe cases.


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Keratoconus Overview
Watch this video for a quick overview about keratoconus and how it can be treated.
How is progressive keratoconus treated?
Keratoconus can be treated using iLink™—the first and only FDA-approved cross-linking procedure that slows or halts progressive keratoconus to help preserve vision.
A new standard of care for progressive keratoconus
iLink™ corneal cross-linking is an innovative therapy that has transformed the treatment of progressive keratoconus. This minimally invasive outpatient procedure uses Photrexa® (riboflavin 5’-phosphate in 20% dextran ophthalmic solution) and Photrexa® (riboflavin 5’-phosphate ophthalmic solution) and Photrexa® Viscous riboflavin eye drops, combined with ultraviolet light from the KXL system to1:
- Create new corneal collagen cross-links
- Shorten and thicken collagen fibrils
- Stiffen and strengthen the cornea
[Beshtawi2013/p451/col2/para1/lines10-14; p452/col1/para1/lines3-6; col2/para1/lines10-11; lines23-27]

Less Cross-Linking (Weaker)

More Cross-Linking (Stronger)

Active Ingredient: Riboflavin 5’–phosphate Sodium
Learn more about iLink™—the first and only FDA-approved corneal cross-linking procedure that slows or halts progressive keratoconus.
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Did you know?
>95% of the commercially insured population has access to iLink™ corneal cross-linking.
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Get the resources you need to help with insurance coverage of iLink™ corneal cross-linking
Following her diagnosis,
Shanice was scared.

Reference
1. Beshtawi IM, O’Donnell C, Radhakrishnan H. Biomechanical properties of corneal tissue after ultraviolet-A-riboflavin crosslinking. J Cataract Refract Surg. 2013;39(3):451–462.