Results 201 to 210 of about 21,900 (224)

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.
Kenneth D, Eichenbaum, Mihaly, Mezej, Joseph W, Eichenbaum   +2 more
openaire   +2 more sources

Experimental and Numerical Analysis of Ocular Tactile Tonometry

Volume 2: Biomedical and Biotechnology, 2012
This article describes the experimental and numerical analysis of a novel trans-scleral tonometer based on the use of an instrumented form of digital palpation tonometry. Similar to manual digital palpation tonometery (estimation of the eye pressure via tactile touch), the novel ocular tactile tonometer utilizes multiple force probes to gather force ...
Eniko T. Enikov, Marcel Madarász, Péter P. Polyvás   +2 more
openaire   +1 more source

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 ...
Atilla, Bayer, Afsun, Sahin, Volkan, Hürmeriç, Gökhan, Ozge   +3 more
openaire   +2 more sources

[Examinations by ocular pressure tonometry].

Klinische Monatsblatter fur Augenheilkunde, 1991
A new method has recently been suggested for the determination of the outflow resistance in the anterior chamber angle. In this method the intraocular pressure is set to 45 mmHg for 8 minutes. The intraocular pressure is measured after the removal of the suction cup. Values below 7 mmHg are obtained in healthy subjects.
R, Stodtmeister, L E, Pillunat, R, Dümmler, R, Klingel   +3 more
openaire   +1 more source

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, G. L. Cloud
openaire   +1 more source

The Clinical Utility of Dynamic Contour Tonometry and Ocular Pulse Amplitude

Journal of Glaucoma, 2007
To determine if ocular pulse amplitude (OPA) as measured by dynamic contour tonometry (DCT) is related to severity of glaucoma, and if intraocular pressure (IOP) as measured by DCT is related to central corneal thickness (CCT).Patients were selected from the Duke Eye Center glaucoma clinic.
Jennifer S, Weizer, Sanjay, Asrani, Sandra S, Stinnett, Leon W, Herndon   +3 more
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   +1 more source

Evaluation of Goldmann Applanation Tonometry Using a Nonlinear Finite Element Ocular Model

Annals of Biomedical Engineering, 2006
Goldmann applanation tonometry (GAT) is the internationally accepted standard for intra-ocular pressure (IOP) measurement, which is important for the diagnosis of glaucoma. The technique does not consider the effect of the natural variation in the corneal thickness, curvature and material properties. As these parameters affect the structural resistance
Elsheikh, Ahmed, Wang, Defu, Kotecha, Aachal, Brown, Michael, Garway-Heath, David   +4 more
openaire   +3 more sources

[Relevance of ocular pressure tonometry and classical tonometry with reference to prognosis in suspected glaucoma and ocular hypertension].

Fortschritte der Ophthalmologie : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft, 1992
A total of 44 eyes of patients with suspected glaucoma or ocular hypertension were examined both by ocular pressure tonometry (OPT) according to Ulrich and by tonography according to Leydhecker. The visual fields of these eyes were prospectively followed up for 3 years to compare the prognostic value of the two methods. In 30 of the 44 eyes a worsening
W, Wetzel, M, Geck, G, Duncker, H, Bernsmeier   +3 more
openaire   +1 more source

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