Contralateral Eye Study Comparing Corneal Biomechanics in Bilateral Keratoconus patients with Unilateral Corneal Vogt's Striae

The aim of this study was to analyze and compare corneal biomechanics in bilateral keratoconus (KCN) patients with unilateral Vogt’s striae
In this prospective contralateral eye study, visual acuity, refraction, and corneal biomechanical parameters were evaluated in bilateral KCN patients with unilateral corneal Vogt’s striae using the Ocular Response Analyzer (ORA) (Reichert, Inc, Buffalo, NY) and Corvis ST (Oculus Optikger¨ate GmbH, Germany). All the cases underwent a comprehensive ophthalmic examination, including uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), refraction (calculated by vectorial analysis), slit lamp biomicroscopy, and Scheimpflug-based tomography. The KCN patients that were enrolled in this study had a reliable diagnosis of bilateral clinical KCN with unilateral Vogt`s striae based on slit-lamp signs, as well as corneal topographic/tomographic maps.
Fifty patients aged 18 to 40 were recruited in this study. Our results showed a significant difference in all clinical (distance visual acuity and refraction) results and corneal biomechanical parameters between KCN eyes with and without Vogt’s striae (all P