Glaucoma is the second cause of irreversible blindness in world. Intraocular pressure (IOP) a recognized major risk factor for development and progression glaucomatous damage. Goldmann applanation tonometry (GAT) internationally accepted as gold standard measurement IOP. The purpose this study was to search correlations between corneal mechanical properties thickness by means vitro tests. IOP m...

PURPOSE To determine the value and accuracy of 24-hour intraocular pressure (IOP) phasing using Icare ONE rebound tonometry (RTONE), in subjects with normal tension glaucoma (NTG). METHODS Eighteen consecutive patients with treated NTG were studied, all subjects had undergone 24-hour IOP phasing during a 1-year period. Each patient had daytime (08:00 to 16:00) IOP phasing with Goldmann applan...

PURPOSE To determine the agreement between intraocular pressure (IOP) measurements using an automated non-contact tonometer (NCT), Goldmann applanation tonometer (GAT), and the ocular response analyzer (ORA) in subjects with primary congenital glaucoma (PCG). METHODS Twenty-nine eyes of 17 PCG patients underwent IOP measurements using NCT, GAT and ORA. Variables obtained by the ORA were corne...

PURPOSE To determine calibration errors of Goldmann applanation tonometers in ophthalmic clinics of Brasília, Brazil, and correlate the findings with variables related to tonometers model and utilization. METHODS Tonometers from ophthalmic clinics in Brasília, Brazil, were checked for calibration errors. A standard Goldmann applanation tonometer checking tool was used to asses the calibration...

PURPOSE To establish correlations between intraocular pressure (IOP) measurements obtained with the ocular response analyzer (ORA) and the Goldmann applanation tonometer (GAT). The effects of central corneal thickness on the measures obtained were also examined. METHODS This was a cross-sectional study. IOP was determined in 48 eyes of 48 patients with glaucoma In all patients, central cornea...

PURPOSE To compare pressure phosphene tonometry with Goldmann applanation tonometry for measuring intraocular pressure (IOP) before and after LASIK. METHODS Forty-three (18 men and 25 women) consecutive healthy patients underwent complete pre- and postoperative LASIK ophthalmologic assessments including manifest and cycloplegic refraction, keratometry, and central corneal thickness. Three rep...