Results 241 to 250 of about 20,213 (273)

Comparing dynamic contour tonometry to Goldmann and hand-held tonometry in normal, ocular hypertension, and glaucoma populations

Annals of Ophthalmology, 2007
We prospectively compared dynamic contour tonometry (DCT) to Goldmann (GAT) and hand-held tonometry (HHT) in normal, ocular hypertension, and glaucoma populations. Both measurements were made on each patient within a 5-minute period during routine office exams over 4 months.
Mihaly Mezej, Kenneth D. Eichenbaum, Joseph W. Eichenbaum   +2 more
openaire   +3 more sources

Comparison of dynamic contour tonometry, Goldmann and pneumotonometer in ocular hypertension patients and their relationship to pachymetry and ocular pulse amplitude [PDF]

Archivos de la Sociedad Española de Oftalmología (English Edition), 2012
To determine the relationship between dynamic contour tonometry (DCT), Goldmann applanation tonometry (GAT) and pneumotonometry (PNT) in ocular hypertension patients (OHT) and their relationship to central corneal thickness (CCT) and ocular pulse amplitude (OPA).Sixty patients (101 eyes) with intraocular pressure (IOP) ≥21 mmHg using GAT and normal ...
A. Clariana-Martín, A. Valdivia-Pérez, I. Villafruela-Güemes, M. Prieto-Del Cura, T. Colás-Tomás   +4 more
openaire   +2 more sources

Ocular Response Analyzer and Goldmann Applanation Tonometry

Journal of Glaucoma, 2010
Correlation of findings of the Reichert Ocular Response Analyzer (ORA) with Goldmann applanation tonometry (GAT).Observational, cross-sectional study.The study was conducted on 103 eyes of 56 patients, aged 41 to 78 years; average (±SD) 58.9 (±9.8) years attending the outpatient clinic of the Department of Ophthalmology, Alexandria University, for a ...
Nader Hussien Lutfy Bayoumi, Amr Saad Bessa, Ahmed Abdel Karim El Massry   +2 more
openaire   +3 more sources

Intraocular Pressure Values Obtained by Ocular Response Analyzer, Dynamic Contour Tonometry, and Goldmann Tonometry in Keratokonic Corneas

Journal of Glaucoma, 2010
To determine the agreement between dynamic contour tonometer (DCT), Goldmann applanation tonometer (GAT), and Ocular Response Analyzer (ORA) in keratoconic corneas and to find out the effect of corneal biomechanics on intraocular pressure (IOP) measurements obtained by these devices.IOP was measured with the ORA, DCT, and GAT in random order in 120 ...
Gokhan Ozge, Atilla Bayer, Afsun Sahin, Volkan Hurmeric   +3 more
openaire   +3 more sources

Ocular Tonometry Through Sonic Excitation and Laser Doppler Velocimetry

Journal of Biomechanical Engineering, 1979
Glaucoma is an insidious eye disease which must be detected in its early stages for there to be successful treatment. Primary detection of glaucoma and evaluation of therapy have depended upon tonometric methods which require applanation of the cornea. A new method of IOP determination which is noncontacting and nonapplanating has been devised.
J. M. Hamelink, Gary Cloud
openaire   +2 more sources

Measurement of Intraocular Pressure with Goldmann Applanation Tonometry, Dynamic-Contour Tonometry, and Ocular Response Analyzer

2016
Intraocular pressure (IOP) is an eye parameter of fundamental importance for the diagnosis of several eye conditions. The clinical standard for IOP measurement is Goldmann applanation tonometry (GAT), which has been the basis for the studies that determined current glaucoma management. Nevertheless, GAT is endowed with a number of limitations, so newer
P. Fogagnolo, M. Digiuni, L. Rossetti
openaire   +2 more sources

Effect of Central Corneal Thickness and Corneal Hysteresis on Tonometry as Measured by Dynamic Contour Tonometry, Ocular Response Analyzer, and Goldmann Tonometry in Glaucomatous Eyes

Journal of Glaucoma, 2008
The dynamic contour tonometer (DCT; Pascal tonometer) and the Ocular Response Analyzer (ORA) are novel tonometers designed to measure intraocular pressure (IOP) independent of corneal properties and central corneal thickness (CCT), respectively. We wanted to compare the corneal compensated IOP (IOPcc) as measured by ORA with IOP values measured by DCT ...
Annette, Hager, Hager, Annette, Kristina, Loge, Loge, Kristina, Bernd, Schroeder, Schroeder, Bernd, Mark-Oliver, Füllhas, Füllhas, Mark-Oliver, Wolfgang, Wiegand, Wiegand, Wolfgang   +9 more
openaire   +2 more sources

Evaluation and Testing of Novel Ocular Tactile Tonometry Device

2014
This article describes the experimental analysis of a novel trans-scleral tonometer based on the use of multiple force sensors forming a mechanical stiffness sensor. This approach is similar to an instrumented form of digital palpation tonometry in which manual palpation is used to conclude the stiffness, and hence, the intraocular pressure of the eye.
Eniko T. Enikov, Péter P. Polyvás, R. Jančo, M. Madarász   +3 more
openaire   +2 more sources

Development of a Non-Invasive Calibration Method for Ocular Tactile Tonometry

Volume 3A: Biomedical and Biotechnology Engineering, 2013
This article describes a novel method of indirect estimation of intra-ocular pressure using tactile sensors. Two sensor calibration methods have been demonstrated: an artificial neural network (ANN) model and a phenomenological reduced-parameter model based on finite element analysis. The ANN method showed superior performance with an accuracy of +/− 0.
Eniko T. Enikov, Péter P. Polyvás
openaire   +2 more sources

Comparison of dynamic contour tonometry and Goldmann applanation tonometry and their relationship to corneal properties, refractive error, and ocular pulse amplitude

Optometry - Journal of the American Optometric Association, 2009
Accurate intraocular pressure (IOP) measurement is essential in diagnosing and managing glaucoma. Dynamic contour tonometry (DCT) is less dependent on corneal properties, such as thickness, elasticity, and rigidity, than Goldmann applanation tonometry (GAT).
Michael Rollins, Chad Anderson, Amber Belaustegui, Dina H. Erickson, Denise Goodwin   +4 more
openaire   +3 more sources