OBJECTIVE To compare measurements obtained by Goldmann applanation tonometry (GAT) and Pascal dynamic contour tonometry (DCT), and to study their relationship to corneal thickness and biomechanical properties in nonglaucomatous eyes. METHODS This is a prospective and randomized study of 200 eyes from 200 non-glaucomatous subjects who underwent intraocular pressure (IOP) measurements by GAT an...

Background and Objective. Evaluation of agreement, repeatability, and reproducibility of central and minimal corneal thickness (CCT and MCT) measurements obtained by SOCT, the Scheimpflug system, and ultrasound pachymetry. Materials and Methods. 28 eyes of healthy patients were enrolled. Pachymetry measurements were performed with SOCT, the Scheimpflug system, and ultrasound instrument. Each me...

PURPOSE To determine the applicability of central corneal thickness (CCT) based correction factor for non-contact tonometer (NCT) measured intraocular pressure (IOP) readings. METHOD A prospective, non-randomized study involved 346 eyes of 173 consecutive patients with age ⩾21 years undergoing laser-assisted in situ keratomileusis (LASIK) for myopia and/or myopic astigmatism. The CCT and IOP ...

BACKGROUND/AIMS The authors estimated the association between corneal biomechanical properties and axial length in myopic children and verified the relationship between axial length and intraocular pressure (IOP). METHODS This cross-sectional study included 126 eyes of 63 children, aged 12.02+/-3.19 years. Corneal hysteresis (CH), corneal resistance factor (CRF), central corneal thickness (CC...

PURPOSE To assess the repeatability and reproducibility of central corneal thickness (CCT) measurements obtained by combined scanning-slit/Placido-disc topography (Orbscan II; Bausch & Lomb, Rochester, NY) after laser in situ keratomileusis (LASIK) and to compare the results with another noncontact method, specular microscopy (SP-2000P; Topcon, Tokyo, Japan). METHODS To analyze intrasession r...

PURPOSE To assess variations in the biomechanical properties and central corneal thickness (CCT) throughout the female menstrual cycle. SETTING Department of Ophthalmology, Assaf Harofeh Medical Center, Zerifin Israel. DESIGN Case series. METHODS Young healthy women were prospectively recruited. Every participant was assessed at the beginning of the menstrual cycle, at ovulation, and at t...

PURPOSE To evaluate and compare corneal hysteresis (CH) and corneal resistance factor (CRF) in healthy eyes with a central corneal thickness (CCT) < 505 µm with CH and CRF in gender-, age-, and CCT-matched keratoconus cases, and to estimate the sensitivity and specificity of these parameters for discriminating between the two groups. METHODS Prospective, comparative case series. In total 46 e...

BACKGROUND Refractive stability is influenced by alterations in corneal curvature and corneal thickness after laser in situ keratomileusis (LASIK). The aim of this study was to analyze the changes of central corneal thickness (CCT) and refractive error following thin-flap LASIK surgery in Chinese eyes. METHODS One hundred and fifty-eight myopic patients (302 eyes) who underwent thin-flap LASI...

The aim of this study was to determine intraocular pressure (IOP) and central corneal thickness (CCT) measurements in healthy rabbits establish clinical reference values investigate the possible relationship between these measurements. included 40 eyes 20 New Zealand albino rabbits, aged 1.5-2 years. All were with no abnormalities, disease, or evidence glaucoma. An ultrasonographic pachymeter u...

purpose: to evaluate the effects of smoking on the central corneal thickness (cct). methods: in a historical chohort analytic study, referred cases have been divided into two groups (cigarette smokers, and non–cigarette smokers).  laboratory tests including fasting blood sugar (fbs), blood urea nitrogen (bun); and blood pressure were checked. complete eye examination was performed. cct was meas...