Until relatively recently, treatment for Keratoconus was focussed only upon correcting the vision as best as possible, but not on actually treating the underlying disease. As a result, the vision of many patients with keratoconus continued to deteriorate to the point of requiring corneal transplantation. Corneal collagen crosslinking has revolutionised the management of keratoconus in that it can halt the progression of disease in many cases, reducing the number of people requiring corneal transplantation.
The crosslinking procedure is performed under local anaesthetic as a day case. The cornea is soaked in Riboflavin (vitamin B2) drops and then an ultraviolet light (UVA) is shone onto the cornea . At the end of the procedure, a bandage contact lens is placed on the cornea which is removed once healing is complete, usually between 3-5 days after the treatment.