Cross-linking for the Management of Pellucid Marginal Degeneration in a Case of an Unsuccessful Implantation of Intracorneal Ring Segments
ABSTRACT We present a case of progressive pellucid marginal degeneration (PMD) treated with cross-linking (CXL) after a previous unsuccessful implantation of intracorneal ring segments. One year after surgery, an increase in the corneal biomechanical properties accompanied by an improvement in corrected visual acuity and a decrease in the magnitude of corneal coma-like aberrations was observed. However, the magnitude of the refractive cylinder and keratometry increased whereas the internal astigmatism was reduced by 3.93 D. CXL in a cornea with a progressive PMD seems to induce not only changes in the anterior corneal surface, but also in the posterior corneal surface. How to cite this article Tuffaha BT, Alio JL, Piñero DP. Cross- linking for the Management of Pellucid Marginal Degeneration in a Case of an Unsuccessful Implantation of Intracorneal Ring Segments. Int J Kerat Ect Cor Dis 2012;1(2):120-124.