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https://www.readbyqxmd.com/read/28647783/a-sample-predictive-model-for-intraocular-pressure-following-laser-in-situ-keratomileusis-for-myopia-and-an-intraocular-pressure-constant
#1
Ayse Ebru Bahadir Kilavuzoglu, Tahir Kansu Bozkurt, Cemile Banu Cosar, Asım Bozkurt Sener
PURPOSE: To describe a sample predictive model for intraocular pressure (IOP) following laser in situ keratomileusis (LASIK) for myopia and an IOP constant. METHODS: The records of patients that underwent LASIK for myopia and myopic astigmatism via WaveLight Allegretto Wave Eye-Q 400 Hz excimer laser and Hansatome XP microkeratome were retrospectively reviewed. Patients with no systemic or ocular disease other than myopia or myopic astigmatism were included in the study...
June 24, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28646440/a-comparison-of-three-different-intravitreal-treatment-modalities-of-macular-edema-due-to-branch-retinal-vein-occlusion
#2
Havva Erdogan Kaldırım, Serpil Yazgan
PURPOSE: To compare the efficacy of intravitreal injection of ranibizumab, dexamethasone implant and aflibercept for the management of macular edema (ME) related to branch retinal vein occlusion (BRVO). METHODS: This retrospective and comparative study included 62 eyes of 62 patients with BRVO and ME. Patients received one of the following treatments: 0.5 mg ranibizumab (group 1, n = 22), 0.7 mg dexamethasone implant (group 2, n = 20) and 2 mg aflibercept (group 3, n = 20)...
June 23, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28644238/prevention-and-management-of-descemet-membrane-endothelial-keratoplasty-complications
#3
Ruth Quilendrino, Marina Rodriguez-Calvo de Mora, Lamis Baydoun, Lisanne Ham, Korine van Dijk, Isabel Dapena, Silke Oellerich, Gerrit R J Melles
PURPOSE: To describe Descemet membrane endothelial keratoplasty (DMEK) complications and strategies for their prevention and management. METHODS: Five hundred consecutive eyes with DMEK of 393 patients were reviewed in this retrospective study for intraoperative and postoperative complications up to 2 years and for corresponding management. RESULTS: Intraoperative challenges (difficult graft unfolding/positioning, high vitreous pressure, iris root hemorrhage, and Descemet membrane remnants) were encountered in 81 eyes (16...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28641325/superior-canal-dehiscence-syndrome-associated-with-scuba-diving
#4
Naoharu Kitajima, Akemi Sugita-Kitajima, Seiji Kitajima
A 28-year-old female diver presented with dizziness and difficulty clearing her left ear whilst scuba diving. Her pure-tone audiometry and tympanometry were normal. Testing of Eustachian tube function revealed tubal stenosis. Video-oculography revealed a predominantly torsional nystagmus while the patient was in the lordotic position. Fistula signs were positive. High-resolution computed tomography (HRCT) of the temporal bone revealed a diagnosis of bilateral superior semicircular canal dehiscence (SCDS). Cervical vestibular-evoked myogenic potential (cVEMP) testing showed that the amplitude of the cVEMP measured from her left ear was larger than that from the right...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28631315/a-two-year-study-of-%C3%AE-9-tetrahydrocannabinol-concentrations-in-drivers-part-2-physiological-signs-on-drug-recognition-expert-dre-and-non-dre-examinations
#5
Kari Declues, Shelli Perez, Ariana Figueroa
Whole blood samples were examined for ∆(9) -Tetrahydrocannabinol (THC) over 2 years in drivers suspected of driving under the influence. Part one of the study examined the link between [THC] and performance on field sobriety tests. This portion examined objective signs, eye examinations and physiological indicators; and their relationship to the presence of THC. Several objective signs were excellent indicators of the presence of THC: red eyes (94%), droopy eyelids (85.6%), affected speech (87.6%), tongue coating (96...
June 20, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28625955/experiment-of-vitreous-liquefaction-induced-by-c3f8
#6
Jing Wang, Qiuming Li
To investigate the effect and safety of vitreous liquefaction induced by C3F8 (an inert gas) injected into vitreous cavit of rabbit eyes. 24 rabbits (48 eyes) were randomly divided into four groups, named group A, group B, group C and group D, with 6 rabbits in each group. The right eye in each rabbit was taken as the experimental eye while the left as the control eye. The experimental eyes in group A were injected with 0.1mL disinfectant air; the experimental eyes in group B, group C and group D were all injected with C3F8 0...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28621916/construction-of-anterior-hemi-corneal-equivalents-using-nontransfected-human-corneal-cells-and-transplantation-in-dog-models
#7
Bin Xu, Zhan Song, Tingjun Fan
Tissue-engineered human anterior hemi-cornea (TE-aHC) is a promising equivalent for treating anterior lamellar keratopathy to surmount the severe shortage of donated corneas. This study was intended to construct a functional TE-aHC with nontransfected human corneal stromal (ntHCS) and epithelial (ntHCEP) cells using acellular porcine corneal stromata (aPCS) as a carrier scaffold, and evaluate its biological functions in a dog model. To construct a TE-aHC, ntHCS cells were injected into an aPCS scaffold and cultured for 3 days; then, ntHCEP cells were inoculated onto the Bowman's membrane of the scaffold and cultured for 5 days under air-liquid interface condition...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28615977/high-lateral-plantar-pressure-is-related-to-an-increased-tibialis-anterior-fibularis-longus-activity-ratio-in-patients-with-recurrent-lateral-ankle-sprain
#8
Shinshiro Mineta, Takayuki Inami, Raldy Mariano, Norikazu Hirose
INTRODUCTION: Center of pressure (COP) is a sudden displacement at the time of a lateral ankle sprain (LAS). It has been suggested that the distribution of plantar pressure and the quantity of COP displacement are important for assessing the risk of LAS. Therefore, we evaluated the plantar pressure during a single-leg balance test with eyes closed (SLB-C) to identify the factors and characteristics of plantar pressure in people with repeated cases of LAS. METHODS: We recruited 22 collegiate athletes and divided them into an instability group (IG; n=11) and a control group (CG; n=11)...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28615925/anterior-lamina-cribrosa-surface-depth-in-healthy-saudi-females
#9
Amira El-Agamy, Fayrouz Oteaf, Mohamed Berika
PURPOSE: This study was conducted to determine normative profile of anterior lamina cribrosa surface depth (ALCSD) in healthy Saudi females using Topcon Three-Dimensional (3D) Optical Coherence Tomography (OCT) 2000 - Spectral Domain (SD-OCT). In addition, the correlation between ALCSD and other clinical factors such as age, refractive error, intraocular pressure (IOP), central corneal thickness, anterior chamber depth, axial length, retinal nerve fiber layer thickness, and disk area was also assessed...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28611650/anterior-360%C3%A2-synechiolysis-in-a-case-of-late-iridocorneal-adhesions-after-25-g-vitrectomy-surgical-and-physiopathogenetic-aspects
#10
Raffaele Nuzzi, Francesca Monteu
We describe the case of an 86-year-old patient, pseudophakic in both eyes and with high myopia, who had previously had a 25-G vitrectomy with 20% C3F8 used as a tamponade due to a total retinal detachment with choroidal hemorrhages and macular hole. At the postoperative 4-month follow-up, we found 360° iridocorneal synechiae with elevated intraocular pressure due to angle closure in all sectors, with an adherent retina and in the absence of choroidal hemorrhage/detachment and of corneal edema or endothelial damage...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28606302/-brain-abscesses-caused-by-nocardia-farcinica-in-a-kidney-transplanted-man
#11
Michaela Tinggaard, Kristian Bagge
Nocardiosis is primarily an opportunistic infection caused by aerobic Gram-positive bacteria of the genus Nocardia. In this case report we describe a male patient who previously received a kidney transplant and was admitted to hospital with chills, headache and pain in the neck and left eye, tremor and coordination problems. A magnetic resonance scan of the brain showed multiple abscesses, and blood culture was positive for Nocardia farcinica. Nocardiosis of the central nervous system is a rare, but serious differential diagnosis in immunosuppressed patients with signs of high intracranial pressure...
June 5, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28603017/effects-of-diabetes-mellitus-on-biomechanical-properties-of-the-rabbit-cornea
#12
FangJun Bao, ManLi Deng, XiaoBo Zheng, LinNa Li, YiPing Zhao, Si Cao, AYong Yu, QinMei Wang, JinHai Huang, Ahmed Elsheikh
To investigate the effects of diabetes on the biomechanical behavior of cornea in alloxan-induced diabetic rabbits. Diabetes mellitus (DM) was induced in 20 rabbits using alloxan, while another 20 age- and weight-matched non-diabetic rabbits served as controls. Eyes were enucleated after 8 weeks of inducing diabetes and the whole cornea was removed with a 3 mm wide scleral ring and tested under inflation conditions with an internal pressure range of 2.0-30.0 mmHg to determine their stress-strain behavior using an inverse analysis process...
June 8, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28588112/the-hoorn-diabetes-care-system-dcs-cohort-a-prospective-cohort-of-persons-with-type-2-diabetes-treated-in-primary-care-in-the-netherlands
#13
Amber Awa van der Heijden, Simone P Rauh, Jacqueline M Dekker, Joline W Beulens, Petra Elders, Leen M 't Hart, Femke Rutters, Nienke van Leeuwen, Giel Nijpels
PURPOSE: People with type 2 diabetes (T2D) have a doubled morbidity and mortality risk compared with persons with normal glucose tolerance. Despite treatment, clinical targets for cardiovascular risk factors are not achieved. The Hoorn Diabetes Care System cohort (DCS) is a prospective cohort representing a comprehensive dataset on the natural course of T2D, with repeated clinical measures and outcomes. In this paper, we describe the design of the DCS cohort. PARTICIPANTS: The DCS consists of persons with T2D in primary care from the West-Friesland region of the Netherlands...
June 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28583470/insights-into-the-current-management-of-older-adults-with-type-2-diabetes-in-the-ontario-primary-care-setting
#14
Graydon S Meneilly, Lori D Berard, Alice Y Y Cheng, Peter J Lin, Lori MacCallum, Ross T Tsuyuki, Jean-François Yale, Nahal Nasseri, Jean-François Richard, Lianne Goldin, Anatoly Langer, Mary K Tan, Lawrence A Leiter
OBJECTIVE: The Goal Oriented controL of Diabetes in the Elderly populatioN (GOLDEN) Program assessed the management of older persons with type 2 diabetes in Canadian primary care. METHODS: Data were extracted from the records of 833 consecutively identified persons 65 years of age or older who had type 2 diabetes and were taking 1 antihyperglycemic agent or more; they were managed by 64 physicians from 36 Ontario clinics. RESULTS: More than half (53%) had glycated hemoglobin (A1C) levels of 7...
June 2, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28572597/visual-detection-of-denatured-glutathione-peptides-a-facile-method-to-visibly-detect-heat-stressed-biomolecules
#15
Monique J Farrell, Robert J Reaume, Aswini K Pradhan
Every year pharmaceutical companies use significant resources to mitigate aggregation of pharmaceutical drug products. Specifically, peptides and proteins that have been denatured or degraded can lead to adverse patient reactions such as undesired immune responses. Current methods to detect aggregation of biological molecules are limited to costly and time consuming processes such as high pressure liquid chromatography, ultrahigh pressure liquid chromatography and SDS-PAGE gels. Aggregation of pharmaceutical drug products can occur during manufacturing, processing, packaging, shipment and storage...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28571890/a-clinical-method-for-quantification-of-tissue-microvascular-blood-perfusion-in-absolute-terms-blood-volume-time%C3%A2-tissue-area
#16
Robert W Flower, Ronn Kling
Fluorescence-mediated photoplethysmography (FM-PPG) was developed to facilitate determination of tissue microvascular (capillary) blood perfusion, requiring intra-venous injection of a small bolus (~0.33mL) of dye (25mg/mL ICG) and acquisition of high-speed angiogram images (>15images/s). The methodology is applicable to microvascular capillary beds of tissues that can be optically imaged, directly or laparoscopically. Proof of concept of the methodology and feasibility of its implementation are demonstrated in human forearm skin and in the choroid of a monkey eye, determined to have blood perfusion rates on the order of 1e-5mL/(s·mm(2)) and 10e-5mL/(s·mm(2)), respectively...
May 29, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28565785/comparison-of-the-icare-rebound-tonometer-and-the-goldmann-applanation-tonometer
#17
Feng Gao, Xu Liu, Qing Zhao, Yingzhe Pan
Tonometry is a fundamental procedure in routine ophthalmologic examination. Although regarded as the reference standard, the Goldmann applanation tonometer (GAT) has its limitations. A new portable alternative to the GAT is the iCare rebound tonometer (RT). The aim of the present study was to compare the intraocular pressure (IOP) results obtained using the RT and GAT and then correlate the results with the central corneal thickness (CCT). Moreover, the tolerability and safety of the RT were evaluated. The IOP of 336 patients (672 eyes) was determined by the RT and GAT...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28564657/relationship-between-elevated-intraocular-pressure-and-divided-peripapillary-sector-retinal-nerve-fiber-layer-thickness-in-a-cynomolgus-monkey-laser-induced-ocular-hypertension-model
#18
Tetsuro Noguchi, Masamitsu Shimazawa, Koji Hamaguchi, Tomoaki Araki, Naoto Horai, Hideaki Hara
AIMS: We investigated the relationship between elevated intraocular pressure (IOP) and changes in global and peripapillary sector retinal nerve fiber layer (RNFL) thickness around the optic nerve head (ONH) in the laser-induced ocular hypertension monkey model. METHODS: To induce high IOP, green laser photocoagulation burns were applied around the trabecular meshwork of 1 eye from each of 12 cynomolgus monkeys. The animals had been acclimated to IOP measurement under conscious conditions for more than 2 months, and IOP was chronologically measured...
June 1, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28561563/reducing-friction-in-the-eye-a-comparative-study-of-lubrication-by-surface-anchored-synthetic-and-natural-ocular-mucin-analogues
#19
Olof Sterner, Chrysanthi Karageorgaki, Massimiliano Zürcher, Stefan Zürcher, Charles W Scales, Zohra Fadli, Nicholas D Spencer, Samuele G P Tosatti
Biomaterials used in the ocular environment should exhibit specific tribological behavior to avoid discomfort and stress-induced epithelial damage during blinking. In this study, two macromolecules that are commonly employed as ocular biomaterials, namely, poly(vinylpyrrolidone) (PVP) and hyaluronan (HA), are compared with two known model glycoproteins, namely bovine submaxillary mucin (BSM) and α1-acid glycoprotein (AGP), with regard to their nonfouling efficiency, wettability, and tribological properties when freely present in the lubricant, enabling spontaneous adsorption, and when chemisorbed under low contact pressures...
May 31, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28553549/twenty-four-hour-variation-of-intraocular-pressure-in-primary-open-angle-glaucoma-treated-with-triple-eye-drops
#20
Yoshinori Itoh, Kenji Nakamoto, Hiroshi Horiguchi, Shumpei Ogawa, Takahiko Noro, Makoto Sato, Tadashi Nakano, Hiroshi Tsuneoka, Noriko Yasuda
Objectives. To evaluate 24-hour intraocular pressure (IOP) variation in patients with primary open-angle glaucoma (POAG) treated with triple eye drops. Subjects and Methods. The IOP was measured in 74 eyes in 74 POAG patients (seated) on triple therapy (PG analogue, β-blocker, carbonic anhydrase inhibitor) at about every 3 hours. Results. The peak IOP was 13.5 ± 3.1 at 1:00, and the trough IOP was at 12.6 ± 2.4 mmHg at 7:00. The IOP at 7:00 was significantly lower than that at 10:00, 1:00, and 3:00 (p < 0...
2017: Journal of Ophthalmology
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