PURPOSE To compare central corneal thickness (CCT), anterior chamber depth (ACD), and keratometry (K) readings measured using optical low-coherence reflectometry (OLCR) biometry and high-resolution rotating Scheimpflug photography. SETTING Eye Hospital of Wenzhou Medical College, Wenzhou, China. DESIGN Comparative case series. METHODS The CCT, ACD endothelium to lens, ACD epithelium to le...

Purpose: To measure tilt and decentration of intraocular lenses (IOLs) with Scheimpflug and Purkinje imaging systems. Methods: Measurements of IOL tilt and decentration were obtained using a commercial Scheimpflug system (Pentacam, Oculus) and custom algorithms, and a custom-built Purkinje imaging apparatus. Both methods were validated with a physical model eye where tilt and decentration can b...

Our purpose is to correct digital CCD-recorded Scheimpflug photographs, imaging both the anterior and posterior corneal surface, the anterior chamber, and the anterior eye lens surface for optical distortions. In a ray-tracing algorithm the imaging of the posterior corneal surface in a given Scheimpflug photograph is corrected by applying Snell's law on parallel incident rays entering through t...

Abstract Aim of this study is to evaluate the differences in corneal endothelial cell morphology and thickness patients with without type 2 diabetes related age, disease duration, HbA1c percentage. This retrospective cross-sectional included 511 (1022 eyes) 900 (1799 non-diabetic patients. The density (ECD), variation size (CV), percentage hexagonal cells, central (CCT) were analyzed using a no...

purpose : to investigate the efficacy of intacs implantation in post-lasik corneal ectasia (ple) methods : in this retrospective study, 17 eyes of 12 patients with ple, that had been implanted intacs, were evaluated. these parameters were assessed: uncorrected visual acuity (ucva), best spectacle corrected visual acuity (bscva), manifest refractive spherical equivalent (mrse), refractive cylind...

PURPOSE To measure tilt and decentration of intraocular lenses (IOLs) with Scheimpflug and Purkinje imaging systems in physical model eyes with known amounts of tilt and decentration and patients. SETTING Instituto de Optica Daza de Valdés, Consejo Superior de Investigaciones Científicas, Madrid, Spain. METHODS Measurements of IOL tilt and decentration were obtained using a commercial Schei...