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Ophthalmic Research

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https://www.readbyqxmd.com/read/28817829/altered-expression-profile-of-circular-rnas-in-the-serum-of-patients-with-diabetic-retinopathy-revealed-by-microarray
#1
Yonghao Gu, Genjie Ke, Lin Wang, Enliang Zhou, Kai Zhu, Yingying Wei
PURPOSE: Diabetic retinopathy (DR) is the leading cause of blindness among working age adults. Circular RNAs (circRNAs) are a kind of noncoding RNAs that are involved in the development of some diseases. Here, we aimed to determine the possible role of circRNAs in the pathogenesis of DR by determining the expression profile of circRNAs in the serum of DR patients. METHODS: Nineteen subjects with type 2 diabetes mellitus with proliferative DR (T2DR), 15 subjects with type 2 diabetes mellitus without DR (T2DM), and 21 age-matched nondiabetic control subjects were included in the study...
August 18, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28813714/effects-of-riboflavin-and-ultraviolet-illumination-on-the-biomechanical-properties-of-conjunctiva
#2
Harrison Man Hin Chan, Bonnie Nga Kwan Choy, Jimmy Shiu Ming Lai
PURPOSE: Our experiment evaluated the biomechanical effects of riboflavin and ultraviolet A illumination, in terms of covalent bonding, permeability, and indentation rupture force, on excised cattle conjunctiva. MATERIALS AND METHODS: Cattle conjunctiva was extracted and divided into the treatment group, which was soaked in riboflavin, followed by ultraviolet light illumination, and the control group. Samples were subsequently analysed on a Fourier transform infrared spectrum test to identify the presence of amide bonds, a permeability test to assess the diffusion of methylene blue across conjunctiva, and an indentation rupture force test...
August 17, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28803250/optical-coherence-tomography-angiography-in-children-with-leber-coats-disease
#3
Michele Fortunato, Angela Turtoro, Gilda Cennamo
INTRODUCTION: The aim of this work was to describe the optical coherence tomography (OCT) angiography (OCTA) features in paediatric Leber-Coats disease. METHODS: Three children presenting with unilateral, clinically active Leber-Coats disease were evaluated using spectral domain OCT and OCTA. OCT angiograms were analysed and compared with the current literature. RESULTS: All 3 OCT angiograms showed that the vessels had lost most of their collateral branches and presented many loops...
August 12, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28803239/therapeutic-effect-of-0-1-tacrolimus-eye-drops-in-the-tarsal-form-of-vernal-keratoconjunctivitis
#4
Qi Wan, Jing Tang, Yu Han, Dan Wang, Hongquan Ye
OBJECTIVE: The purpose of this study was to evaluate the efficacy and safety of 0.1% tacrolimus eye drops in the tarsal form of vernal keratoconjunctivitis (VKC) and to survey the changes of dendritic cells at the palpebral conjunctiva in patients with VKC by in vivo confocal microscopy. METHODS: A total of 17 patients (34 eyes) with the tarsal form of VKC were enrolled in this prospective, nonrandomized case series. They were treated with 0.1% tacrolimus eye drops twice daily after discontinuation of all other topical medications...
August 12, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28796997/dynamics-of-inflammatory-factors-in-aqueous-humor-during-ranibizumab-or-aflibercept-treatment-for-age-related-macular-degeneration
#5
Ryosuke Motohashi, Hidetaka Noma, Kanako Yasuda, Osamu Kotake, Hiroshi Goto, Masahiko Shimura
PURPOSE: To evaluate the dynamic changes of the aqueous humor levels of inflammatory factors between patients receiving intravitreal ranibizumab injection (IRI) and aflibercept injection (IAI) in patients with exudative age-related macular degeneration (AMD). METHODS: The study was performed on 30 eyes with AMD that were scheduled to receive 3 doses of IRI (15 eyes) or IAI (15 eyes) at monthly intervals. Aqueous humor samples were collected when injection was done...
August 11, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28793297/calcium-dobesilate-is-protective-against-inflammation-and-oxidative-nitrosative-stress-in-the-retina-of-a-type-1-diabetic-rat-model
#6
Paula Voabil, Joana Liberal, Ermelindo C Leal, Jacques Bauer, José Cunha-Vaz, Ana Raquel Santiago, António Francisco Ambrósio
Calcium dobesilate (CaD) has been prescribed to some patients in the early stages of diabetic retinopathy to delay its progression. We previously reported that the treatment of diabetic animals (4 weeks of diabetes) with CaD, during the last 10 days of diabetes, prevents blood-retinal barrier breakdown. Here, we aimed to investigate whether later treatment of diabetic rats with CaD would reverse inflammatory processes in the retina. Diabetes was induced with streptozotocin, and 6 weeks after diabetes onset, CaD (100 mg/kg/day) was administered for 2 weeks...
August 10, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28746942/screening-for-retinopathy-of-prematurity-insight-into-optimizing-screening
#7
Charlotte Pallot, Agnès Soudry Faure, Camille Charvy, Ninon Ternoy, Claire Langlet Muteau, Niyazi Acar, Alain M Bron, Claude Speeg Schatz, Catherine Creuzot-Garcher
PURPOSE: To determine the factors influencing the time from preterm birth and retinopathy of prematurity (ROP) detection to optimize the timing of the initial screening. METHODS: This multicenter retrospective study enrolled preterm infants born before 32 weeks of gestational age (GA) and/or weighing less than 1,500 g between January 1, 2011, and December 31, 2015. ROP screening was performed using fundus photography with a wide-field camera. Population and follow-up characteristics were recorded...
July 27, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28728144/retinal-penetration-of-intravitreally-injected-tissue-plasminogen-activator-a-rat-model-study
#8
Kfir Tal, Assaf Dotan, Yael Nisgav, Mor Dachbash, Orly Gal-Or, Rita Ehrlich, Dan D Gaton, Dov Weinberger, Tami Livnat
PURPOSE: To determine whether intravitreal unconjugated tissue plasminogen activator (tPA) (alteplase) can penetrate the intact neural retina and reach the subretinal space in an experimental model. METHODS: This study was performed in 24 Sprague-Dawley rats aged 12 weeks. Under general anesthesia, the right eye was injected with either 0.75 μg of 3 μL tPA (14 rats; study group) or saline (10 rats, control group) into the vitreous. Animals were euthanized at 3, 24, and 48 h...
July 20, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28719889/combined-23-g-pars-plana-vitrectomy-and-lensectomy-in-the-management-of-glaucoma-associated-with-nanophthalmos
#9
Zhaotian Zhang, Shaochong Zhang, Xintong Jiang, Yantao Wei
PURPOSE: To investigate the surgical results of 23-G pars plana vitrectomy (PPV) combined with lensectomy (PPL) in nanophthalmic patients with angle closure glaucoma. METHODS: This prospective nonrandomized study included consecutive patients with nanophthalmic glaucoma recruited for 23-G PPV combined with PPL. Best-corrected visual acuity (BCVA), intraocular pressure (IOP), the number of antiglaucoma medications, and surgery-associated complications were recorded...
July 19, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28704825/dexamethasone-implants-in-diabetic-macular-edema-patients-with-high-visual-acuity
#10
Riccardo Sacconi, Maurizio Battaglia Parodi, Stefano Casati, Rosangela Lattanzio, Giorgio Marchini, Francesco Bandello
PURPOSE: To evaluate the effects of intravitreal dexamethasone (DEX) implants in patients affected by diabetic macular edema (DME) with high best-corrected visual acuity (BCVA) and contraindications to therapy with anti-vascular endothelial growth factor over a 12-month follow-up. METHODS: In this interventional nonrandomized clinical study, 14 consecutive patients (14 eyes) affected by DME with a BCVA of 0.3 LogMAR or better were prospectively enrolled. All patients were treated with a sustained-release 700-μg DEX implant at baseline, revaluated every 6 weeks, and retreated on a pro re nata basis...
July 14, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28697496/spatially-resolved-spectral-sensitivities-as-a-potential-read-out-parameter-in-clinical-gene-therapeutic-trials
#11
Birgit Lorenz, Erika Wegscheider, Christian Hamel, Markus N Preising, Knut Stieger
PURPOSE: Spatially resolved functional assessment of rods and cones under photopic and scotopic conditions is desirable to evaluate the treatment outcome of gene therapeutic applications in inherited retinal disorders, such as early- onset severe retinal dystrophy (EOSRD) or achromatopsia. METHODS: A sample of 3 healthy subjects, 6 patients with RPE65 deficiency (aged 11-45 years), and 3 patients with cone dysfunction disorders underwent spectral sensitivity testing (SST) under conditions of dark and light adaptation using a Humphrey Field Analyzer modified perimeter...
July 12, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28683455/binocular-fixation-reduces-fixational-eye-movements-in-the-worst-eye-of-patients-with-center-involving-diabetic-macular-edema
#12
Nanna Stæhr Jakobsen, Dorte Ancher Larsen, Toke Bek
PURPOSE: Treatment of diabetic maculopathy with vascular endothelial growth factor inhibitors is in some patients ineffective, and, therefore, parameters predicting visual outcome after treatment should be identified. It has been shown that fixational saccades are increased in patients with reduced visual acuity secondary to diabetic maculopathy, but it is unknown to what extent these saccades in an eye affected by diabetic maculopathy are influenced by the other eye during binocular fixation...
July 7, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28662522/17th-esaso-retina-academy-june-29-july-1-2017-berlin-germany-abstracts
#13
(no author information available yet)
No abstract text is available yet for this article.
June 29, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28651253/association-of-il-6-gene-174-and-572-g-c-polymorphisms-with-proliferative-diabetic-retinopathy-of-type-2-diabetes-in-a-chinese-population
#14
Qin-Kang Lu, Jun-Tao Zhang, Na Zhao, Hui-Yun Wang, Qi-Hu Tong, Shou-Li Wang
PURPOSE: To investigate the association of interleukin (IL)-6 with proliferative diabetic retinopathy (PDR) of type 2 diabetes (T2D) in a Chinese population. METHODS: Two subtypes of the IL-6 promoter (-174 and -572 G/C) were genotyped in 215 T2D patients with PDR and 207 T2D patients with a normal retinal function (controls) using the PCR-RFLP method. The mRNA and protein expression of IL-6 was examined by real-time PCR. RESULTS: T2D patients with PDR had a significantly higher frequency of IL-6 -174 GC (OR 0...
June 27, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28641277/association-of-the-cfh-y402h-polymorphism-with-the-1-year-response-of-exudative-amd-to-intravitreal-anti-vegf-treatment-in-the-brazilian-population
#15
Flavio Mac Cord Medina, Augusto Alves Lopes da Motta, Walter Yukihiko Takahashi, Pedro Carlos Carricondo, Mario Martins Dos Santos Motta, Monica B Melo, Jose Paulo C Vasconcellos
AIM: Evidence of the relationship between the polymorphism of the complement factor H (CFH) gene at position 402 (Y402H) and the response to the treatment of wet AMD is controversial. The aim of this study was to compare the functional and morphological 1-year evolution of patients with exudative AMD treated with antivascular endothelial growth factor (VEGF) drugs with the CFH Y402H polymorphism in the Brazilian population. METHODS: Forty-six patients treated for wet AMD with bevacizumab or ranibizumab in a pro re nata regimen were included...
June 23, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28571008/microrna-200b-expression-in-the-vitreous-humor-of-patients-with-proliferative-diabetic-retinopathy
#16
Amir Ramadan Gomaa, Eman Tayae Elsayed, Reham Fadl Moftah
BACKGROUND: The role of microRNA (miRNA)-200b in the pathogenesis of proliferative diabetic retinopathy (PDR) has been studied in diabetic animal models. The aim of this study was to assess miRNA-200b expression in the vitreous of patients with PDR and to determine its correlation with vascular endothelial growth factor (VEGF), one of the pathogenic mechanisms in PDR. METHODS: Quantitative reverse transcription polymerase chain reaction was used to measure miRNA-200b expression in the vitreous from 29 eyes with PDR and 30 eyes with idiopathic macular holes (IMH; control group)...
June 2, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28571005/importance-of-light-filters-in-modern-vitreoretinal-surgery-an-update-of-the-literature
#17
Michele Coppola, Maria Vittoria Cicinelli, Alessandro Rabiolo, Giuseppe Querques, Francesco Bandello
PURPOSE: Direct endobulbar illumination during vitreoretinal surgery causes light-induced retinal damage known as phototoxicity. Spectral filters have been proposed to eliminate hazardous wavelengths from the emission spectrum before entering the eye. The purpose of our paper is to review advances in vitreoretinal surgery, focusing on intraoperative light filters. METHODS: A PubMed and Medline database search was carried out using the terms "spectral filters" associated with "vitreoretinal surgery," "phototoxicity," and "vitrectomy...
June 2, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28538221/retinal-microvasculature-in-nonproliferative-diabetic-retinopathy-automated-quantitative-optical-coherence-tomography-angiography-assessment
#18
Marco Lupidi, Gabriel Coscas, Florence Coscas, Tito Fiore, Elisa Spaccini, Daniela Fruttini, Carlo Cagini
PURPOSE: To perform a qualitative and quantitative assessment of the foveal microvasculature in eyes with diabetic maculopathy using optical coherence tomography angiography (OCT-A). METHODS: Retrospective case series of 48 eyes with diabetic maculopathy and 47 healthy eyes evaluated by Spectralis OCT-A. Perifoveal arcade disruptions, linear vascular dilations, microaneurysms, intraretinal microvascular abnormalities and flow-void areas were qualitatively analyzed on OCT angiograms both for the superficial (SCP) and deep (DCP) capillary plexuses...
May 25, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28427057/long-term-anatomical-and-functional-outcomes-in-patients-with-ischemic-central-retinal-vein-occlusion-treated-with-anti-vascular-endothelial-growth-factor-agents
#19
Irini Chatziralli, George Theodossiadis, Efstratios Parikakis, Panagiotis G Mitropoulos, Panagiotis Theodossiadis
PURPOSE: To evaluate the anatomical and functional outcomes in patients with ischemic central retinal vein occlusion (CRVO) treated with intravitreal anti-vascular endothelial growth factor (VEGF) agents. METHODS: This retrospective study included 15 treatment-naive patients with ischemic CRVO and macular edema who were treated with intravitreal ranibizumab or aflibercept. The main outcomes were the evolution of retinal ischemia over time, as well as the change in best corrected visual acuity (BCVA) and in central subfield thickness (CST) at month 24...
April 21, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28662524/evicr-net-european-network-of-clinical-research-in-ophthalmology-information-update-june-2017
#20
C Martinho, D Fernandes
No abstract text is available yet for this article.
2017: Ophthalmic Research
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