Explore our FAQ page to learn more about Corneal Collagen Cross-Linking (CXL), a groundbreaking treatment that strengthens and stabilizes the cornea in keratoconus and other conditions. Get answers to your questions and understand how CXL can improve your vision and eye health

Epi-off cross-linking requires the removal of the epithelium, the outermost layer of the cornea, to assure penetration of the prescription eye drops. This protocol has been rigorously tested and is the only cross-linking procedure approved by the US Food and Drug Administration (FDA) when performed with Photrexa Viscous, Photrexa and the KXL System