Corneal cross-linking is a minimally invasive outpatient procedure that combines the use of ultraviolet light and specially formulated eye drops to stiffen and strengthen corneas that have been weakened by disease or refractive surgery. Cross-linking is considered the standard of care around the world for progressive keratoconus and corneal ectasia following refractive surgery.
Corneal cross-linking creates new corneal collagen cross-links that result in a shortening and thickening of the collagen fibers, creating new, stronger links to create a more stable cornea shape.