PURPOSE To compare parameters of biomechanical response of the human cornea measured as corneal hysteresis (CH) and corneal resistance factor (CRF) in patients with diabetes mellitus and healthy control subjects. SETTING Department of Ophthalmology, Assaf Harofeh Medical Center, Zerifin, Israel. METHODS In the right eye of each participant, the CH, CRF, Goldmann-correlated intraocular press...

PURPOSE To investigate the in vivo, corneal, biomechanical changes after corneal collagen cross-linking (CXL) using the Ocular Response Analyzer (ORA) in patients with keratoconus and post-laser in situ keratomileusis (LASIK) ectasia. METHODS Single-center, prospective, randomized, controlled, clinical trial. After CXL (69 eyes, 46 keratoconus and 23 post-LASIK), corneal hysteresis (CH) and c...

PURPOSE To examine the concordance of the Glaucoma Hemifield Test and other global visual field indexes between two consecutive automated visual field tests. METHODS Normal subjects, subjects with ocular hypertension, and subjects with glaucoma had two automated visual field tests on the Humphrey Field Analyzer. The Glaucoma Hemifield Test results, mean deviation, and corrected pattern standa...

PURPOSE To test correlations between Scheimpflug optical densitometry and ocular higher-order aberrations (HOAs) in patients with mild nuclear cataract. SETTING Cornea and Refractive Surgery Department, Hospital de Braga, Braga, Portugal. DESIGN Retrospective single-center study. METHODS In eyes with mild nuclear cataract, lens densitometry was evaluated by Scheimpflug imaging (Pentacam H...

PURPOSE The aim of this study was to compare the ocular pulse amplitude (OPA) in patients with different types of glaucoma, and also to evaluate the usefulness of OPA for the elucidation of normal-tension glaucoma (NTG). OPA is thought to reflect choroidal circulation. SUBJECTS Sixty-six patients with normal-tension glaucoma (NTG), 52 patients with primary open angle glaucoma (POAG), 42 with ...

The aim of this study was to determine whether objective ocular torsion in intermittent exotropia (IXT) changes after recession surgery, and to evaluate the relationship between change in ocular torsion and clinical parameters in IXT. Sixty patients between 3 and 14 years of age underwent lateral rectus (LR) recession for IXT. Digital fundus photographs were obtained from both eyes of each subj...

Abstract To evaluate the role of corneal hysteresis (CH) as a risk factor for progressive ONH surface depression and RNFL thinning measured by confocal scanning laser ophthalmoscopy (CSLO) spectral-domain optical coherence tomography (SD-OCT), respectively in glaucoma patients. Prospective study. A total 146 eyes 90 patients with were recruited consecutively. The CH measurements acquired at bas...

PURPOSE A single-center, cross-sectional study was designed to assess and compare objective and subjective quality of vision of patients intervened with penetrating keratoplasty (PK), deep anterior lamellar keratoplasty (DALK) and Descemet membrane endothelial keratoplasty (DMEK). METHODS Forty-six patients previously intervened with PK (22 eyes), DALK (7 eyes) and DMEK (17 eyes) were recruit...