Results 201 to 210 of about 16,385 (254)

Comparison of Biomechanically Corrected Intraocular Pressure Obtained by Corvis ST and Goldmann Applanation Tonometry in Patients With Open-angle Glaucoma and Ocular Hypertension

Journal of glaucoma, 2019
Supplemental Digital Content is available in the text. Precis: Biomechanically corrected intraocular pressure (bIOP) measurements provided by the new Corvis ST (CST) were higher than measurements obtained with Goldman applanation tonometry (GAT) in eyes ...
Yiming Ye, Yangfan Yang, Yanmei Fan, Min Lan, Keming Yu, Minbin Yu   +5 more
semanticscholar   +1 more source

Central Corneal Thickness, Tonometry, and Ocular Dimensions in Glaucoma and Ocular Hypertension

Journal of Glaucoma, 2001
To assess possible correlations between central corneal thickness, tonometry, and ocular dimensions.One hundred seventeen eyes of 117 patients who were not taking any intraocular pressure-lowering medications were studied prospectively. Forty-one patients had ocular hypertension; 13 patients had primary open-angle glaucoma; and 10 patients had normal ...
R P, Singh, I, Goldberg, S L, Graham, A, Sharma, M, Mohsin   +4 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

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

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

[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

[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

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   +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

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.
E. T. Enikov, P. P. Polyvás, R. Jančo, M. Madarász   +3 more
openaire   +1 more source