CORNEAL thickness may not only affect IOP measurements performed with Goldmann applanation tonometry (GAT) but may also be linked to the aetiology of glaucoma itself. However, there is no practical or reliable means at present to adjust IOP measurements in individual patients for variations in corneal thickness, James Brandt MD, professor of ophthalmology and director, glaucoma service, Univers...

Oculab Tono-Pen tonometry was compared with Goldmann applanation tonometry in 82 eyes of 82 patients with normal corneas and in 54 eyes of 54 patients who had undergone penetrating keratoplasty and whose corneas did not preclude the use of Goldmann tonometer. We found that the intraocular pressure (IOP) in 48% of the eyes with normal corneas and in 57% after keratoplasty has different measureme...

Methods: Ten eyes of 10 patients aged 26.5 6 5.7 (mean 6 SD) years with progressive keratoconus were treated with UV-A– riboflavin CXL and assessed with the Ocular Response Analyzer (ORA) that measured corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann-correlated intraocular pressure (IOPg), and corneal compensated intraocular pressure (IOPcc). Intraocular pressure was also meas...

Objective: To determine the changes in corneal epithelial thickness and central using optic coherence tomography taken after Goldmann applanation tonometry measurements. Material Methods: The study included 25 patients who presented at our clinic for routine ophthalmological examination. Before taking measurements of patients, values were determined cohence (OCT). intraocular pressure (IOP) was...

INTRODUCTION Intraocular pressure (IOP) determination using dynamic contour tonometry (DCT) has been considered to be independent of central corneal thickness (CCT), while Goldmann applanation tonometry (GAT) is known to be influenced by various corneal properties. In this study, IOP was measured before and 1 day after cataract surgery using GAT and DCT to investigate the possible effects of co...

AIMS To evaluate the intraocular pressure (IOP) measurements in patients with band keratopathy or glued corneas obtained from affected and non-affected areas. METHODS 15 patients with band keratopathy or glued corneas were prospectively recruited. When both eyes were affected, only the right eye was analysed. Tono-Pen readings of IOP were obtained sequentially from the affected and non-affect...

Attempts at the mechanical identification of the human eyeball are often not very effective for two reasons: the material parameters determined by tension tests on corneal and scleral tissue specimens are not sufficiently accurate while numerical models of the eye, integrating material and geometric parameters, are often based on unrealistic assumptions. The examples presented here cover refrac...