Astigmatic Keratotomy (AK) & Limbal Relaxing Incisions (LRI)

A variation of the radial keratotomy procedure can be used to correct astigmatism. This variation involves making transverse cuts to the cornea to correct myopia. These transverse cuts work by relaxing areas of the cornea so they bulge out slightly and heal with a reduced curvature. In the case of astigmatism, where one meridian has more curvature than the other, the transverse cuts serve to reduce the curvature of one meridian so it heals in symmetry with the other.

Astigmatism is not always easily or predictably corrected. About one third of those who have surgery to correct the irregularity find that their eyes regress to a considerable degree and only a small improvement is noted. Another third find that the astigmatism has been significantly reduced but not fully corrected. The remaining third have the most encouraging results with the most or all of the desired correction achieved.

To speak to a Patient Counsellor about this procedure, please contact us.