Corneal Ring Segments: Kerarings
Keraring intrastromal corneal ring segments, are implantable precision devices used to correct corneal surface irregularity, and reduce astigmatism associated with keratoconus and other corneal ectatic disorders. Unlike other intracorneal rings such as Intacs, Kerarings was specifically designed to treat keratoconus, providing better and greater corneal surface regularization and refractive correction.
Keraring surgery is performed using the Intralase laser which makes small curved channels at a precise depth within the cornea. The rings are then positioned within the cornea. The rings subtly alter the shape of the cornea to optimise its shape for better image focus. One of the advantages of Keraring surgery is that the procedure is reversible.
Keraring surgery can be combined with Collagen Cross Linking. If patients achieve a good level of vision with their glasses after keraring surgery, they may be good candidates for implantation of the Visian ICL implantable contact lens which can eliminate the need for glasses and contact lenses.