Results 11 to 20 of about 21,636 (233)

Intraocular pressure and ocular pulse amplitude using dynamic contour tonometry and contact lens tonometry [PDF]

BMC Ophthalmology, 2004
Background The new Ocular Dynamic Contour Tonometer (DCT), investigational device supplied by SMT (Swiss Microtechnology AG, Switzerland) allows simultaneous recording of intraocular pressure (IOP) and ocular pulse amplitude (OPA). It was the aim of this
Grus Franz-H, Hoffmann Esther M, Pfeiffer Norbert   +2 more
doaj   +3 more sources

Non-Invasive Ocular Rigidity Measurement: A Differential Tonometry Approach [PDF]

Acta Medica, 2015
Purpose: Taking into account the fact that Goldmann applanation tonometry (GAT) geometrically deforms the corneal apex and displaces volume from the anterior segment whereas Dynamic Contour Tonometry (DCT) does not, we aimed at developing an algorithm ...
Efstathios T. Detorakis, Emmanuela Tsaglioti, George Kymionis   +2 more
doaj   +3 more sources

A mechanical model of ocular bulb vibrations and implications for acoustic tonometry.

PLoS ONE, 2023
In this study, we propose a comprehensive mechanical model of ocular bulb vibrations and discuss its implications for acoustic tonometry. The model describes the eye wall as a spherical, pre-stressed elastic shell containing a viscoelastic material and ...
Nicoletta Tambroni, Giuseppe Tomassetti, Silvia Lombardi, Rodolfo Repetto   +3 more
doaj   +6 more sources

Comparison of Rebound and Applanation Tonometry in Eyes With Focal Corneal Edema. [PDF]

Vet Ophthalmol
ABSTRACT Objective To determine the effect of corneal edema on intraocular pressure (IOP) readings and their accuracy and precision when obtained with handheld rebound and applanation tonometers. Animals and Procedures IOP readings from areas of focal corneal edema were compared to those from clear cornea in 10 eyes of 7 glaucomatous cats in vivo using
Kiland JA, Terhaar HM, Walleck HE, Chen N, Torné O, Oikawa K, Wahl T, McLellan GJ.   +7 more
europepmc   +2 more sources

A Novel Ocular Tonometry Task Trainer

Cureus, 2022
The measurement of intraocular pressure via ocular tonometry is a skill necessary for the evaluation of emergency department patients with ocular complaints. Accurate results inform the use of time-sensitive medications or invasive procedures. We sought to develop and evaluate an affordable, realistic, and reproducible task trainer to allow Emergency ...
Heimiller, Jeffrey, Stack, Lawrence, Sikon, Joseph, Walsh, Ryan, Lei, Charles   +4 more
openaire   +2 more sources

Comparison of dynamic contour tonometry and noncontact tonometry in ocular hypertension and glaucoma [PDF]

Eye, 2008
To assess the agreement in the measurement of intraocular pressure obtained by dynamic contour tonometer (DCT) and noncontact tonometer (NCT) in patients with glaucoma and ocular hypertension, to investigate the effect of corneal thickness on pressure readings by both instruments, and to assess the reproducibility of dynamic contour tonometer.NCT and ...
M, Erdurmus, Y, Totan, I F, Hepsen, R, Yagci   +3 more
openaire   +2 more sources

The importance of scleral rigidity in ocular tonometry

Indian Journal of Ophthalmology, 1960
Francois J
doaj   +1 more source

Review on Dynamic Contour Tonometry and Ocular Pulse Amplitude [PDF]

Ophthalmic Research, 2015
Intraocular pressure (IOP) measurement is the cornerstone of the management of glaucoma patients. The gold standard for assessing IOP is Goldmann applanation tonometry (GAT). Recently, the dynamic contour tonometer (DCT) has become available. While both devices provide reliable IOP measurements, the results are not interchangeable.
Koen, Willekens, Rita, Rocha, Karel, Van Keer, Evelien, Vandewalle, Luís, Abegão Pinto, Ingeborg, Stalmans, Carlos, Marques-Neves   +6 more
openaire   +2 more sources

Ocular tonometry in critically ill patients and their behaviour

Spanish Journal of Legal Medicine, 2021
Abstract Introduction The study of the post-mortem interval is an important element in the investigation of criminal acts. It is also one of the most difficult variables to quantify and establish. Various cadaveric phenomena are used to assess it, some of which are ocular, such as intraocular pressure.
Sandra Vianney Ramirez Ojeda, Martha Giselda Rangel Charqueño, Cesar Hernandez Mier   +2 more
openaire   +1 more source

A large multi-ethnic genome-wide association study identifies novel genetic loci for intraocular pressure. [PDF]

, 2017
Elevated intraocular pressure (IOP) is a major risk factor for glaucoma, a leading cause of blindness. IOP heritability has been estimated to up to 67%, and to date only 11 IOP loci have been reported, accounting for 1.5% of IOP variability.
Banda, Yambazi, Choquet, Hélène, Hoffmann, Thomas J, Jorgenson, Eric, Kvale, Mark N, Melles, Ronald, Nair, K Saidas, Risch, Neil, Schaefer, Catherine, Thai, Khanh K, Yin, Jie   +10 more
core   +3 more sources