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Glaucoma AND IOP

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https://www.readbyqxmd.com/read/28820156/viscoelastic-augmented-trabeculectomy-a-newer-concept
#1
Meghna Solanki, Ankur Kumar, Anubhav Upadhyay, Kishor Kumar
PURPOSE: Comparison of conventional trabeculectomy (CT) and viscoelastic-augmented trabeculectomy (VAT) in primary open-angle glaucoma. METHODS: A total of 65 primary open-angle glaucoma cases were taken for each of the two groups, i.e., CT and VAT. Viscoelastic-augmented trabeculectomy constituted lamellar scleral flap, deep scleral flap, penetrating trabeculectomy, peripheral iridectomy, filling of the anterior chamber with viscoelastic (sodium hyaluronate) and balanced salt solution, movement of visco in bleb, and tight flap closure...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28819134/long-term-glaucoma-drug-delivery-using-a-topically-retained-gel-microsphere-eye-drop
#2
Morgan V Fedorchak, Ian P Conner, Joel S Schuman, Anthony Cugini, Steven R Little
The purpose of this study was to characterize and determine the efficacy of a long-term, non-invasive gel/microsphere (GMS) eye drop for glaucoma. This novel drug delivery system is comprised of a thermoresponsive hydrogel carrier and drug-loaded polymer microspheres. In vitro release of brimonidine from the GMS drops and gel properties were quantified. A single brimonidine-loaded GMS drop was administered to 5 normotensive rabbits and intraocular pressure (IOP) was monitored for 28 days. Here we report that IOP reduction in rabbits receiving a single brimonidine GMS drop was comparable to that of rabbits receiving twice daily, standard brimonidine drops...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28816820/factors-that-influence-of-trabectome-surgery-for-glaucoma-patients
#3
Naoki Tojo, Shinya Abe, Atsushi Hayashi
BACKGROUND: The aim of this study was to investigate the factors that influence the outcome of trabectome surgery. METHODS: This was a retrospective nonrandomized study. Seventy-eight glaucoma patients (86 eyes) who underwent trabectome surgeries and were followed up for more than 12 months were included. We classified the subtypes of glaucoma as: primary open-angle glaucoma (23 eyes), pseudo-exfoliation glaucoma (58 eyes), and secondary glaucoma (5 eyes). Forty-seven eyes underwent cataract and trabectome surgeries simultaneously, and 39 underwent only trabectome surgery...
August 14, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28815087/ocular-and-systemic-risk-factors-of-different-morphologies-of-scotoma-in-patients-with-normal-tension-glaucoma
#4
Ewa Kosior-Jarecka, Dominika Wróbel-Dudzińska, Urszula Łukasik, Tomasz Żarnowski
THE AIM: The aim of this study was to assess general and ocular profiles of patients with single-localisation changes in visual field. MATERIAL AND METHODS: The study group consisted of 215 Caucasian patients with normal-tension glaucoma with scotoma on single localisation or with preperimetric glaucoma. During regular follow-up visits, ophthalmic examination was carried out and medical history was recorded. The results of the visual field were allocated as paracentral scotomas, arcuate scotomas, peripheral defects, or hemispheric defects...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28813622/the-effect-of-posture-on-intraocular-pressure-and-systemic-hemodynamic-parameters-in-treated-and-untreated-patients-with-primary-open-angle-glaucoma
#5
Andreas Katsanos, Anna I Dastiridou, Luciano Quaranta, Eliana Rulli, Ivano Riva, Varvara Dimasi, Evangelia E Tsironi, Robert N Weinreb
PURPOSE: To assess intraocular pressure (IOP), systolic, diastolic, and mean arterial blood pressure (SBP, DBP, MAP) changes in the sitting, supine, and 20° head-down (Trendelenburg) position in treated (tPOAG) and untreated (uPOAG) primary open-angle glaucoma patients and healthy controls. METHODS: All participants underwent IOP and systemic BP measurements in the sitting, supine, and Trendelenburg positions during office hours. IOP and BP readings in the sitting, supine, and Trendelenburg positions were analyzed...
August 16, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28812168/a-wireless-pressure-sensor-for-continuous%C3%A2-monitoring-of-intraocular-pressure-in-conscious-animals
#6
Simon A Bello, Christopher L Passaglia
An important aspect of eye health in humans and animal models of human diseases is intraocular pressure (IOP). IOP is typically measured by hand with a tonometer, so data are sparse and sporadic and round-the-clock variations are not well characterized. Here we present a novel system for continuous wireless IOP and temperature measurement in small animals. The system consists of a cannula implanted in the anterior chamber of the eye connected to pressure sensing electronics that can be worn by rats or implanted in larger mammals...
August 15, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28807733/early-trabeculotomy-ab-externo-in-treatment-of-sturge-weber-syndrome
#7
Yue Wu, Rujing Yu, Di Chen, Li Xu, Li Zhu, Mao Li, Chunyu Guo, Ping Gu, Xiaoxi Lin, Wenyi Guo
PURPOSE: To evaluate the intermediate-term efficacy and safety of trabeculotomy in infant Sturge-Weber syndrome (SWS). DESIGN: Retrospective cohort study. METHODS: All SWS-induced glaucoma patients less than 12 months of age who underwent trabeculotomy at our Ophthalmology Department from August 2011 to March 2017 were reviewed. Baseline demographics, intraocular pressure (IOP), cup-to-disc ratio (C/D) and cornea diameters were noted before surgery...
August 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28800647/effects-of-vitrectomy-and-lensectomy-on-older-rhesus-macaques-oxygen-distribution-antioxidant-status-and-aqueous-humor-dynamics
#8
Carla J Siegfried, Ying-Bo Shui, Baohe Tian, T Michael Nork, Gregg A Heatley, Paul L Kaufman
Purpose: The purpose of this study is to evaluate effects of vitrectomy (PPV) and lens extraction with intraocular lens implantation (PE/IOL) on molecular oxygen (pO2) distribution, aqueous humor antioxidant-oxidant balance, aqueous humor dynamics, and histopathologic changes in the trabecular meshwork (TM) in the older macaque monkey. Methods: Six rhesus monkeys underwent PPV followed by PE/IOL. pO2, outflow facility, and intraocular pressure (IOP) were measured...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28794615/evaluating-intraocular-pressure-lowering-solutions-for-the-treatment-of-open-angle-glaucoma-comparison-between-bimatoprost-0-03-and-bimatoprost-0-01-an-observational-switch-study
#9
Sarita S Deshpande, Sriram Sonty, Afzal Ahmad
PURPOSE: The purpose of this study is to evaluate the intraocular pressure (IOP)-lowering efficacy of bimatoprost 0.01% solution in patients with primary open-angle glaucoma (POAG), who were switched from bimatoprost 0.03% solution, compared to patients with POAG who continued on bimatoprost 0.03% solution. METHODS: A retrospective review evaluated 35 patients (35 right eyes [OD], 34 left eyes [OS]) who remained on bimatoprost 0.03% and 30 patients (27 OD, 30 OS) who were switched to bimatoprost 0...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28794074/the-incidence-of-acute-angle-closure-in-scotland-a-prospective-surveillance-study
#10
Paul Y Chua, Alexander C Day, Ken L Lai, Nikki Hall, Lai L Tan, Kamran Khan, Lik Thai Lim, Barny Foot, Paul J Foster, Augusto Azuara-Blanco
PURPOSE: To estimate the incidence, and describe the clinical features and short-term clinical outcomes of acute angle closure (AAC). METHODS: Patients with newly diagnosed AAC were identified prospectively over a 12-month period (November 2011 to October 2012) by active surveillance through the Scottish Ophthalmic Surveillance Unit reporting system. Data were collected at case identification and at 6 months follow-up. RESULTS: There were 114 cases (108 patients) reported, giving an annual incidence of 2...
August 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28790802/the-signs-of-ocular-surface-disorders-after-switching-from-latanoprost-to-tafluprost-timolol-fixed-combination-a-prospective-study
#11
Hideaki Okumichi, Yoshiaki Kiuchi, Tetsuya Baba, Takashi Kanamoto, Tomoko Naito, Shunsuke Nakakura, Hitoshi Tabuchi, Hiroki Nii, Chie Sueoka, Yosuke Sugimoto
PURPOSE: To evaluate the ocular-surface safety of a 0.001% benzalkonium chloride-containing tafluprost/timolol fixed combination (TTFC) in patients with primary open-angle glaucoma (POAG) or ocular hypertension who have inadequate intraocular pressure (IOP) control with latanoprost monotherapy. METHODS: This study is a multicenter, prospective, single-arm, open-label clinical study. Patients with POAG or ocular hypertension who have inadequate IOP control with latanoprost monotherapy were considered eligible...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28783422/the-role-of-nitric-oxide-in-the-intraocular-pressure-lowering-efficacy-of-latanoprostene-bunod-review-of-nonclinical-studies
#12
Megan E Cavet, Heleen H DeCory
Latanoprostene bunod (LBN) is a topical ophthalmic therapeutic for the reduction of intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension (OHT). LBN is composed of latanoprost acid (LA) linked to a nitric oxide (NO)-donating moiety and is the first NO-releasing prostaglandin analog to be submitted for marketing authorization in the United States. The role of latanoprost in increasing uveoscleral outflow of aqueous humor (AqH) is well established. Herein, we review findings from nonclinical studies, which evaluated the role of NO in the IOP-lowering efficacy of LBN...
August 7, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28782783/poly-%C3%AE%C2%B5-caprolactone-nanocapsule-carriers-with-sustained-drug-release-single-dose-for-long-term-glaucoma-treatment
#13
Chih-Hung Lee, Yu-Jia Li, Chih-Ching Huang, Jui-Yang Lai
Glaucoma is an eye-related disease accompanied by highly elevated intraocular pressure (IOP), which causes damage to the optic nerve and results in vision loss and even blindness. Although the treatment of glaucoma with eye drops may reduce the IOP, eye drops have some limitations, such as poor patient compliance and short duration. To develop drug carriers that facilitate the sustained and long-term release of drugs for glaucoma therapy, we synthesized poly(ε-caprolactone) nanoparticles (PCL NPs) capable of loading pilocarpine, a widely used drug for the treatment of dry eye and glaucoma...
August 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/28782513/the-effect-of-age-on-the-response-of-retinal-capillary-filling-to-changes-in-intraocular-pressure-measured-by-optical-coherence-tomography-angiography
#14
Xiaoyun Jiang, Elaine Johnson, William Cepurna, Diana Lozano, Shaojie Men, Ruikang K Wang, John Morrison
PURPOSE: To compare the effect of elevated intraocular pressure (IOP) on retinal capillary filling in elderly vs adult rats using optical coherence tomography angiography (OCTA). METHODS: The IOP of elderly (24-month-old, N=12) and adult (6-8month-old, N=10) Brown Norway rats was elevated in 10mmHg increments from 10 to 100mmHg. At each IOP level, 3D OCT data were captured using an optical microangiography (OMAG) scanning protocol and then post-processed to obtain both structural and vascular images...
August 3, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28782234/causes-and-outcomes-of-dogs-presenting-with-hyphema-to-a-referral-hospital-in-colorado-a-retrospective-analysis-of-99-cases
#15
Maggie R Jinks, Francisco Olea-Popelka, Kate S Freeman
OBJECTIVE: To investigate the causes of hyphema in dogs and identify factors associated with poor visual outcomes. ANIMALS STUDIED: Ninety-nine dogs (120 eyes) that presented with hyphema. PROCEDURE: Medical records from the Colorado State University Veterinary Teaching Hospital between the years 2004-2015 were reviewed. RESULTS: Overall, 36.4% of dogs were diagnosed with hyphema from systemic causes, 32.9% due to local ocular disease, 26...
August 6, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28777224/short-term-results-of-trabeculectomy-using-adjunctive-intracameral-bevacizumab-versus-mitomycin-c-a-randomized-controlled-trial
#16
Zakieh Vahedian, Mostafa Mafi, Ghasem Fakhraie, Reza Zarei, Yadollah Eslami, Hadi Ghadimi, Masomeh Mohebbi
PURPOSE: To compare the outcome of trabeculectomy using adjunctive intracameral bevacizumab versus intraoperative mitomycin C (MMC) MATERIALS AND METHODS:: In this double-blind, randomized clinical trial 87 eyes of 87 patients with primary open-angle or pseudoexfoliation glaucoma were assigned to each treatment group (44 cases received 1.25 mg intracameral bevacizumab at the end of operation and in 43 cases MMC was applied during surgery). Success was defined as intraocular pressure (IOP) between 6 and 21 mm Hg and at least 30% IOP drop with (qualified) or without (complete) glaucoma medications without additional glaucoma surgery...
August 2, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28777222/optic-disc-drusen-and-family-history-of-glaucoma-results-of-a-patient-directed-survey
#17
Gwendolyn Gramer, Eugen Gramer, Nicole Weisschuh
PURPOSE: Prospective evaluation of family history (FH) of glaucoma and FH of optic disc drusen (ODD) in patients with sonographically confirmed ODD. PATIENTS AND METHODS: 87 patients with ODD interviewed all their first and second degree relatives using a detailed questionnaire whether an ophthalmologist had diagnosed or excluded glaucoma or ocular hypertension (OH). Using a second questionnaire, 62 of these patients also provided information about ODD in their FH...
August 2, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28774936/prospective-study-of-glaucoma-referrals-across-europe-are-we-using-resources-wisely
#18
Panayiota Founti, Fotis Topouzis, Gábor Holló, Barbara Cvenkel, Michele Iester, Anna-Bettina Haidich, Péter Kóthy, Anneta Kiana, Despoina Kolokotroni, Ananth C Viswanathan
BACKGROUND: To investigate the outcomes of glaucoma referrals across different European countries. METHODS: 250 patients newly referred to tertiary referral glaucoma specialist practices in the UK, Hungary, Slovenia, Italy and Greece were prospectively enrolled (50 consecutive patients per centre). Referral accuracy and predictive value of referral criteria for an intervention or further monitoring (positive predictive value) were analysed. RESULTS: Same-day discharges occurred in 43% (95% CI 39% to 75%) (12/28) of optometrist-initiated referrals (UK only), 37% (95% CI 30% to 45%) (59/158) of ophthalmologist-initiated referrals (all centres) and 54% (95% CI 40% to 68%) (26/48) of self-referrals (Hungary, Italy and Greece)...
August 3, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28772005/the-effects-of-antioxidants-on-ocular-blood-flow-in-patients-with-glaucoma
#19
Alon Harris, Josh Gross, Nicholas Moore, Thai Do, Amelia Huang, Willy Gama, Brent Siesky
PURPOSE: To investigate the effects of an antioxidant dietary supplement that includes Ginkgo biloba, on retinal and retrobulbar blood flow in patients with open-angle glaucoma (OAG). METHODS: Forty-five patients with confirmed OAG were enroled in a randomized, double blinded, placebo-controlled cross-over study. Baseline and postadministration measurements of intraocular pressure (IOP), ocular perfusion pressure (OPP), retrobulbar blood flow, and retinal capillary blood flow were non-invasively measured (ultrasound and laser Doppler modalities, respectively) before and one month after antioxidant nutraceuticals and placebo administration...
August 3, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28761569/efficacy-and-safety-of-switching-from-prostaglandin-analog-therapy-to-prostaglandin-timolol-fixed-combination-or-prostaglandin-brimonidine-therapy
#20
Kenji Inoue, Mieko Masumoto, Kyoko Ishida, Goji Tomita
BACKGROUND: To compare the safety and efficacy between switching to prostaglandin/timolol fixed combination eye drops (PG/timolol FCs) and adding brimonidine to PG analogue monotherapy. METHODS: Eyes of 53 patients with primary open-angle glaucoma or ocular hypertension who were receiving PG analogue monotherapy were included. Participants were randomly divided into two treatment groups: one was prescribed PG/timolol FCs (switched group), and for the other, 0.1% brimonidine was added to the PG analogue (added group)...
2017: Open Ophthalmology Journal
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