Corneal Collagen Cross Linking

Corneal collagen cross-linking is a technique which strengthens the chemical bonds in the cornea, making it more rigid and less susceptible to becoming deformed. 

It is used to halt the progressive and irregular steepening of the cornea in conditions such as keratoconus and   laser refractive surgery induced ectasia.

In the technique, Riboflavin (vitamin B2) is dripped onto the cornea and then exposed to ultra violet light. The light causes the riboflavin to fluoresce, which leads to the formation of new bonds between collagen molecules thus producing cross-linking of the collagen fibres.