The Corneal Allogenic Intrastromal Ring Segments (CAIRS) technique represents a significant leap forward in the surgical management of keratoconus. Unlike traditional synthetic implants, CAIRS utilizes donor corneal tissue, processed into semi-circular segments, which is then inserted into mid-peripheral stromal channels created by a femtosecond laser. By using allogenic tissue, we achieve excellent biocompatibility and a reduced risk of long-term complications like melting or extrusion. The primary goal is to provide a “molding” effect that flattens the cone and regularizes the corneal curvature. This structural reinforcement significantly improves topometric indices and enhances best-corrected visual acuity for our patients. It is an elegant, tissue-based solution for stabilizing the ectatic cornea. In this video, our podcast guest from yesterday, Dr David Gunn, shows his technique and does the narration.
