Results 241 to 250 of about 7,180 (270)

Ocular Pulse Amplitude in Patients With Descemet Stripping Endothelial Keratoplasty

Journal of Glaucoma, 2014
To study the relationship of ocular pulse amplitude (OPA) and intraocular pressure (IOP) in eyes that have undergone successful Descemet stripping endothelial keratoplasty (DSEK).Fifty eyes of 38 patients with successful DSEK at a single tertiary referral center were followed up for at least 3 months.
Renu, Jivrajka, Kara L, Schultz, Marianne O, Price, Frances W, Price, Jacob T, Wilensky, Deepak P, Edward, Thasarat S, Vajaranant   +6 more
openaire   +2 more sources

Influence of physical exercise and nifedipine on ocular pulse amplitude

Graefe's Archive for Clinical and Experimental Ophthalmology, 1996
Ocular pulse amplitude (OPA) was measured to investigate the influence of peripheral vasoconstriction and vasodilation on choroidal perfusion in healthy volunteers and to determine whether low OPA in low-tension glaucoma (LTG) patients is associated with a vasospastic reaction and its response to the calcium channel blocker nifedipine.OPA was ...
K G, Schmidt, T W, Mittag, S, Pavlovic, V, Hessemer   +3 more
openaire   +2 more sources

[Ocular pulse amplitude in ocular hypertension and open-angle glaucoma].

Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde, 1998
The present study was designed to investigate choroidal perfusion in primary open-angle glaucoma patients with statistically elevated (HPG) and statistically normal (NPG) intraocular pressure (IOP) and in ocular hypertensive volunteers (OHT) before and after application of topical antiglaucomatous drugs.
K G, Schmidt, A, von Rückmann, T W, Mittag   +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

Intraocular pressure and ocular pulse amplitude variations during the Valsalva maneuver

Graefe's Archive for Clinical and Experimental Ophthalmology, 2010
To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects.IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years.Mean IOP ...
Umit, Aykan, Mesut, Erdurmus, Burhan, Yilmaz, Ahmet Hamdi, Bilge   +3 more
openaire   +2 more sources

Ocular Pulse Amplitude in Patients with Asymmetric Primary Open-Angle Glaucoma

Current Eye Research, 2011
To evaluate ocular pulse amplitude (OPA) using the dynamic contour tonometer (DCT) in patients with asymmetric primary open-angle glaucoma (POAG) and asymmetric intra-ocular pressure (IOP).The participants consisted of 48 patients (96 eyes) with asymmetric POAG. Three measurements of IOP and OPA were taken using DCT. The diagnosis of asymmetry required
Marcelo Jarczun, Kac, Helena Parente, Solari, Guillermo Coca, Velarde, Rodrigo, Brazuna, Gilberto Perez, Cardoso, Marcelo Palis, Ventura   +5 more
openaire   +2 more sources

Acute effects of caffeine on choroidal thickness and ocular pulse amplitude

Cutaneous and Ocular Toxicology, 2015
To explore ocular changes in healthy people after caffeine consumption.This prospective observational study was carried out with students of the Turgut Özal University Medical Faculty from May 15 to 15 December 2014. Enrolled in the study were 17 healthy subjects (n = 17 eyes), with a median age of 24 (IQR 1), ranging between 21 and 26 years.
Dervisogullari, Mehmet Serdar, Totan, Yuksel, Yuce, Aslihan, Kulak, Ali Ender   +3 more
openaire   +2 more sources

Ocular Pulse Amplitude in Normal Tension and Primary Open Angle Glaucoma

Journal of Glaucoma, 2008
(1) To investigate the relationship of ocular pulse amplitude (OPA) with intraocular pressure (IOP) and corneal thickness. (2) To evaluate OPA in patients with primary open angle and normal tension glaucoma (NTG).Patients with NTG (n=28), primary open angle glaucoma (POAG) (n=19), and age-matched healthy controls (n=22) underwent 2 consecutive Goldmann
Ingeborg, Stalmans, Alon, Harris, Veerle, Vanbellinghen, Thierry, Zeyen, Brent, Siesky   +4 more
openaire   +2 more sources

[Ocular pulse amplitude during manipulation of systemic perfusion parameters].

Klinische Monatsblatter fur Augenheilkunde, 1999
The mechanism for the control of choroidal perfusion is unclear. The present study was designed to investigate for the effect of standardized alteration of systemic perfusion parameters on choroidal hemodynamics in healthy volunteers.Intraocular pressure (IOP; German abbreviation: IOD), Ocular Pulse Amplitude (OPA), systemic blood pressure, and pulse ...
K G, Schmidt, A, von Rückmann, V, Klingmüller, R, Becker, L E, Pillunat, T W, Mittag   +5 more
openaire   +1 more source

Wearable Pressure Sensors for Pulse Wave Monitoring

Advanced Materials, 2022
Ardo Nashalian, Sophia Shen
exaly