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Intraocular pressure

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https://www.readbyqxmd.com/read/29166180/measurement-of-orbital-biomechanical-properties-in-patients-with-thyroid-orbitopathy-using-the-dynamic-scheimpflug-analyzer-corvis-st
#1
Anna Leszczynska, Karolin Moehler, Eberhard Spoerl, Lisa Ramm, Robert Herber, Lutz E Pillunat, Naim Terai
PURPOSE: To investigate orbital biomechanical properties in patients with thyroid orbitopathy and in age- and gender-matched healthy subjects using the Corvis-ST (CST, Oculus Wetzlar, Germany). METHODS: The CST allows a non-contact tonometry with an ultra-high-speed Scheimpflug device to record the deformation of the cornea during an air pulse. Biomechanical response parameters (intraocular pressure (IOP), whole eye movement length (WEMl) and time (WEMt), deflection amplitude 2 mm ratio max, deflection amplitude max, stiffness parameter, and biomechanically corrected IOP were measured in 39 patients with thyroid orbitopathy (= group I) and in 33 age- and gender-matched healthy subjects (= group II) using the CST...
November 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29164845/current-therapeutic-options-and-treatments-in-development-for-the-management-of-primary-open-angle-glaucoma
#2
Jeffrey M Liebmann, Jeannie K Lee
Primary open angle glaucoma (POAG) is the most common type of glaucoma, and is responsible for approximately 90% of glaucoma cases in North America. POAG is characterized by an asymptomatic onset, where patients do not present with symptoms until significant visual loss occurs in late stages of the disease. Importantly, while glaucoma is associated with several risk factors that contribute to damage and disease progression, intraocular pressure (IOP) is the only proven modifiable risk factor at this time. Treatments for POAG include use of pharmacologic and surgical interventions...
September 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/29164231/storage-of-porcine-cornea-in-an-innovative-bioreactor
#3
Damien Guindolet, Emmanuel Crouzet, Zhiguo He, Pascal Herbepin, Clotilde Jumelle, Chantal Perrache, Jean Marc Dumollard, Fabien Forest, Michel Peoc'h, Philippe Gain, Eric Gabison, Gilles Thuret
Purpose: To quantify cell survival and tissue structure preservation of porcine cornea stored in a bioreactor (BR) that recreates a transcorneal pressure gradient equivalent to intraocular pressure (IOP) and renews the medium. Methods: A BR comprising endothelial and epithelial chambers was machined in a biocompatible material. The porcine cornea, securely held, separated the chambers. Medium flow and pressure inside the endothelial chamber were maintained by a peristaltic pump...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29164230/intraocular-pressure-and-glaucomatous-optic-neuropathy-in-high-myopia
#4
Jost B Jonas, Natsuko Nagaoka, Yu Xin Fang, Pascal Weber, Kyoko Ohno-Matsui
Purpose: To examine the association between intraocular pressure (IOP) and the prevalence of glaucomatous optic neuropathy (GON) in high myopia. Methods: The hospital-based observational study consisted of patients treated in the Tokyo High Myopia Clinics and for whom fundus photographs and IOP readings were available. The appearance of the optic nerve head on fundus photographs was the basis for the definition of GON. Results: Among 517 eyes of 261 patients (mean age: 62...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29162989/a-retrospective-study-on-the-outcomes-of-ahmed-valve-versus-ahmed-valve-combined-with-fluocinolone-implant-in-uveitic-glaucoma
#5
Duriye D Sevgi, Samaneh Davoudi, Katherine E Talcott, Heeyoon Cho, Rong Guo, Ann-Marie Lobo, George N Papaliodis, Angela Turalba, Lucia Sobrin, Lucy Q Shen
Purpose: To compare the intraocular pressure (IOP) outcomes of Ahmed glaucoma valve (AGV) surgery alone versus AGV with fluocinolone implant in uveitic glaucoma patients. Methods: We identified uveitic glaucoma patients with AGV surgery alone and AGV surgery combined with fluocinolone implant from the Massachusetts Eye and Ear Ocular Inflammation Database. Demographic information, visual acuity, and IOP were recorded at preoperative visits and 1, 6, and 12 months after surgery...
2017: Digital Journal of Ophthalmology: DJO
https://www.readbyqxmd.com/read/29161717/subconjunctival-prgf-fibrin-membrane-as-an-adjuvant-to-nonpenetrating-deep-sclerectomy-a-2-year-pilot-study
#6
Iñaki Rodríguez-Agirretxe, Vanesa Freire, Francisco Muruzabal, Gorka Orive, Eduardo Anitua, Elio Díez-Feijóo, Arantxa Acera
PURPOSE: To evaluate the potential role of the autologous PRGF (plasma rich in growth factors) fibrin membrane in tissue regeneration after glaucoma filtering surgery. MATERIALS AND METHODS: Ten patients with medically uncontrolled primary open-angle glaucoma underwent nonpenetrating deep sclerectomy and were treated with PRGF fibrin membrane as adjuvant. Intraocular pressure reduction was the primary outcome. This variable was measured preoperatively and also at each follow-up visit...
November 22, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29161320/in-vivo-effects-of-intraocular-and-intracranial-pressures-on-the-lamina-cribrosa-microstructure
#7
Bo Wang, Huong Tran, Matthew A Smith, Tigran Kostanyan, Samantha E Schmitt, Richard A Bilonick, Ning-Jiun Jan, Larry Kagemann, Elizabeth C Tyler-Kabara, Hiroshi Ishikawa, Joel S Schuman, Ian A Sigal, Gadi Wollstein
There is increasing clinical evidence that the eye is not only affected by intraocular pressure (IOP), but also by intracranial pressure (ICP). Both pressures meet at the optic nerve head of the eye, specifically the lamina cribrosa (LC). The LC is a collagenous meshwork through which all retinal ganglion cell axons pass on their way to the brain. Distortion of the LC causes a biological cascade leading to neuropathy and impaired vision in situations such as glaucoma and idiopathic intracranial hypertension...
2017: PloS One
https://www.readbyqxmd.com/read/29160783/long-term-intraocular-pressure-after-uncomplicated-pars-plana-vitrectomy-for-idiopathic-epiretinal-membrane
#8
Daniele Tognetto, Marco R Pastore, Gabriella Cirigliano, Rossella DʼAloisio, Massimo Borelli, Chiara De Giacinto
PURPOSE: To investigate long-term intraocular pressure trends after uncomplicated pars plana vitrectomy for idiopathic epiretinal membrane. METHODS: Three hundred and sixty-eight eyes of 368 consecutive patients were enrolled. Changes in intraocular pressure 1, 3, 6, and 12 months after surgery and during the final follow-up visit were evaluated in vitrectomized eyes and nonvitrectomized fellow eyes. RESULTS: The median follow-up period was 36 months (range 12-92 months)...
November 16, 2017: Retina
https://www.readbyqxmd.com/read/29160547/ultrasound-biomicroscopy-in-acetazolamide-induced-myopic-shift-with-appositional-angle-closure
#9
Julio Daniel Grigera, Emilio Daniel Grigera
We report a case of a 49-year-old female who presented to the emergency department with blurred vision and vomiting, hours after taking two tablets of 250 mg of acetazolamide. The anterior chamber was bilaterally flat, with normal intraocular pressure in both eyes. An ultrasound biomicroscopic (UBM) examination showed bilateral ciliary effusion and complete appositional angle closure in all quadrants. Acetazolamide-induced bilateral angle closure was diagnosed. Steroid and cycloplegic therapy were initiated, and acetazolamide was discontinued...
September 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/29160543/intraocular-pressure-and-central-corneal-thickness-in-full-term-newborns
#10
Claudia Cardoso Maestri Ferreira, Ivan Maynart Tavares
OBJECTIVE: The aim of this study was to determine the central corneal thickness (CCT) and intraocular pressure (IOP) in full-term newborns and to correlate these values with the following variables: weight, sex, and post-conception age (PCA). METHODS: IOP and CCT were determined in 52 full-term newborns with a mean gestational age of 39.43 ± 1.03 weeks and a mean birth weight of 3,273 ± 558 g. The mean age of the neonates at the time of taking the measurements was 1...
September 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/29160542/corneal-biomechanical-features-in-patients-with-ankylosing-spondylitis
#11
Kubra Serefoglu Cabuk, Emine Isil Üstün, Kursat Atalay, Ahmet Kirgiz, Rukiye Aydin
PURPOSE: To evaluate the corneal biomechanical features and central corneal thickness in ankylosing spondylitis patients and to evaluate correlations of these parameters with disease activity. METHODS: The study included 51 patients diagnosed with ankylosing spondylitis (mean age, 40.80 ± 13.15 years; range, 18-72 years) and 34 age- and sex-matched healthy controls (mean age, 42.00 ± 12.32 years; range, 18-60 years). All underwent a complete ophthalmological and physical examination, including visual acuity testing and biomicroscopic anterior and posterior segment examinations...
September 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/29160538/are-the-effects-of-hemodialysis-on-ocular-parameters-similar-during-and-after-a-hemodialysis-session
#12
Ahmet Elbay, Muhammed Altinisik, Alper Dincyildiz, Isil Kutluturk, Julide Canan, Umurhan Akkan, Arif Koytak, Hakan Ozdemir
PURPOSE: To evaluate the changes in several ocular parameters, including choroidal thickness, during and after hemodialysis. METHODS: Twenty-seven eyes of 27 patients with chronic renal failure undergoing hemodialysis were included. The patients underwent an ophthalmic examination, including intraocular pressure, central corneal thickness, iridocorneal angle, subfoveal choroidal thickness, and blood pressure, just before a hemodialysis session, during the second hour of the session, and half an hour after the end of the session...
September 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/29159432/comparison-of-the-neuroprotective-effects-of-brimonidine-tartrate-and-melatonin-on-retinal-ganglion-cells
#13
Deniz Marangoz, Elif Guzel, Signem Eyuboglu, Asli Gumusel, Ismail Seckin, Ferda Ciftci, Bayram Yilmaz, Ilgaz Yalvac
PURPOSE: We aimed to compare the neuroprotective effects of brimonidine tartrate (BRT) and melatonin (MEL) on retinal ganglion cells (RGCs) in a rat glaucoma model. METHODS: Thirty-six adult Wistar albino rats were allocated into six groups: control (C), glaucoma (G), BRT, MEL, G + BRT and G + MEL. After establishing the glaucoma model, intraocular pressure (IOP) of all animals measured at day 4 and day 30 was compared statistically with day 0 and day 4, respectively...
November 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29157839/lifestyles-guide-and-glaucoma-i-sports-and-activities
#14
J Moreno-Montañés, A Antón-López, S Duch-Tuesta, P Corsino Fernández-Vila, J García-Feijoó, E Millá-Griñó, F J Muñoz-Negrete, L Pablo-Júlvez, I Rodríguez-Agirretxe, J L Urcelay-Segura, F Ussa-Herrera, M P Villegas-Pérez
PURPOSES: The increase in quality and life expectancy, often leads to many patients asking the glaucoma specialist whether some sports, activities or hobbies would affect their illness. The aim of this article is to establish guidelines for patients, based on the scientific evidence of published papers. METHODS: Review of all published articles on glaucoma and sports or other activities. The papers were classified according to the level of scientific evidence based on the Oxford Centre for Evidence-Based Medicine classification...
November 17, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29155697/acute-intraoperative-suprachoroidal-hemorrhage-during-small-gauge-pars-plana-vitrectomy
#15
Intira Sukpen, Jay M Stewart
PURPOSE: To report the intraoperative occurrence of acute intraoperative suprachoroidal hemorrhage during small-gauge pars plana vitrectomy. METHOD: A review of a surgical patient who developed acute intraoperative suprachoroidal hemorrhage during small-gauge pars plana vitrectomy because of bucking under general anesthesia. RESULTS: A 32-year-old obese woman with proliferative diabetic retinopathy and traction retinal detachment in the left eye who developed intraoperative suprachoroidal hemorrhage during small-gauge pars plana vitrectomy because of bucking under general anesthesia while doing endolaser under air infusion...
November 16, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29151688/schockmed-valve-a-novel-surgical-option-for-uncontrolled-glaucoma-in-eyes-with-poor-conjunctiva-and-encircling-bands
#16
David Fleischman, Bryan Kim
Surgical management of elevated intraocular pressure (IOP) in an eye with scarred conjunctiva, an encircling band, and silicone oil has limited options. By combining the flow restrictor of the Ahmed Glaucoma Valve (New World Medical, Rancho Cucamonga, California) and the capsule of the encircling band as a conduit for aqueous flow, immediate pressure reduction could theoretically be achieved in eyes with limited conjunctival mobilization. This is a description of a surgical technique in a case of a patient with multiple ocular surgeries with uncontrolled multimechanism glaucoma despite using all available topical and oral glaucoma medications...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29151687/medium-term-anatomical-results-of-laser-peripheral-iridoplasty-an-anterior-segment-optical-coherence-tomography-study
#17
Joobin Hooshmand, James Cy Leong, Jeremy O'Connor, Ghee S Ang, Anthony P Wells
Aim: To evaluate by anterior segment optical coherence tomography (AS-OCT) the medium-term (mean duration 3.2 years) anatomical changes in the anterior chamber angle (ACA) after laser peripheral iridoplasty. Materials and methods: This is a longitudinal, retrospective case series of 31 eyes of 31 patients with primary angle-closure suspicion, primary angle closure (PAC), or primary angle-closure glaucoma (PACG) who underwent laser peripheral iridoplasty. All patients had persistent iridotrabecular contact (ITC) despite the presence of a patent peripheral iridotomy (PI)...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29151686/long-term-follow-up-of-patients-receiving-intraocular-pressure-lowering-medications-as-cataract-surgery-candidates-a-case-control-study
#18
Georgios Bontzos, Michail Agiorgiotakis, Efstathios T Detorakis
Aim: In this study, we reviewed demographics and biometric characteristics among patients receiving chronic β-blockers and prostaglandins (PGs) for primary open-angle glaucoma. We compared the age at the time of cataract surgery in different patient groups and in a control group which was not under any medication. Materials and methods: Retrospective chart review of glau-comatous patients who underwent cataract extraction at the Department of Ophthalmology of the University Hospital of Heraklion, Crete, Greece, between January 1998 and December 2016 was done...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29151685/intraoperative-injection-vs-sponge-applied-mitomycin-c-during-trabeculectomy-one-year-study
#19
Albert S Khouri, Grace Huang, Linda Y Huang
Aim: To determine the safety and efficacy of intraoperative injection of mitomycin C (MMC) against conventional sponge-applied MMC during trabeculectomy. Materials and methods: This study was a retrospective, comparative case series. Thirty eyes with primary open-angle glaucoma underwent consecutive trabeculectomies with MMC injection (injection group), and thirty eyes with sponge-applied MMC were as controls (sponge group). Data were collected preoperatively and postoperatively at 1 day, 1 week, 1 month, 3 months, 6 months, and 1 year after surgery...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29151683/clinical-experience-with-the-m4-ahmed-glaucoma-drainage-implant
#20
Ilya Sluch, Brett Gudgel, Justin Dvorak, Mary Anne Ahluwalia, Kai Ding, Steve Vold, Steven Sarkisian
Aim: To evaluate the safety and efficacy of the M4 (porous polyethylene plate) Ahmed Glaucoma Valve (AGV) drainage implant in a multicenter retrospective study. Materials and methods: A retrospective chart review of medical records of patients who had undergone the M4 Ahmed valve was performed from January 2013 to April 2015. The primary outcome measure was surgical failure defined as: Less than a 20% reduction in baseline intraocular pressure (IOP) to last follow-up visit, final IOP less than 5 mm Hg or greater than 18 mm Hg, reoperation for glaucoma, or loss of light perception vision...
September 2017: Journal of Current Glaucoma Practice
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