Comparison between Corneal Biomechanics in Normal and Keratoconic Corneas Using Ocular Response Analyzer

Abstract

Background: keratoconus (KC) is an idiopathic degenerative eye disease characterized by localized thinning and conical protrusion of the cornea, which typically develops in the inferior-temporal and central zones. Consequently, visual acuity is reduced due to irregular astigmatism and high myopia resulting from asymmetric topographical changes in the corneal surface. KC is the most prevalent form of corneal ectasia and affects all ethnicities. However, higher incidence has been reported in Asians when compared to caucasians. Aim of the work: this study aimed to compare the biomechanical properties of the cornea between topographically normal individuals with topographically keratoconic patients. Patients and methods: this prospective study was carried out from January 2017 to July 2017 on 40 eyes of patients attending outpatient clinic of