Histopathological Findings in Secondary Refractive Surgery Ectasias

Abstract

Zamora-Ortiz Rocio, Rodriguez-Reyes Abelardo A, Hernandez-Ayuso Ivette, Vizcaino-Lopez Gerson, Rios y Valles-Valles Dolores and Naranjo-Tackman Ramon

Corneal ectasia secondary to refractive surgery or iatrogenic ectasia is a progressive entity consisting of corneal thinning, increased curvature and decreased visual acuity with and without correction. Its prevalence rate ranges from 0.02 to 0.6% according to different series, and in the fewer cases of this complication, corneal transplantation or penetrating keratoplasty (PK) is the only treatment measure to restore vision in these patients. Despite the reports and identification of some risk factors, the mechanisms of ectasia secondary to refractive surgery are not completely clear.

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