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Ophthalmic Research

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https://www.readbyqxmd.com/read/29237169/outer-retina-and-choroidal-thickness-in-intermediate-age-related-macular-degeneration-reticular-pseudodrusen-findings
#1
Pedro Camacho, Marco Dutra-Medeiros, Diogo Cabral, Rufino Silva
PURPOSE: To evaluate outer retina and choroidal thickness in subjects with intermediate age-related macular degeneration (iAMD) and to describe associations with the presence of reticular pseudodrusen (RPD). METHODS: This was a retrospective, cross-sectional analysis of 157 consecutive eyes (specifically: 62 eyes classified as having RPD and 95 eyes with drusen ≥125 µm). Only cases with digital color fundus photographs, red-free, and infrared, obtained and graded according to the Age-Related Eye Disease Study to define iAMD, were used for this study...
December 14, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29207384/slc2a1-tag-snps-in-greek-patients-with-diabetic-retinopathy-and-nephropathy
#2
Vasileios Siokas, Anatoli Fotiadou, Efthimios Dardiotis, Maria G Kotoula, Sophia V Tachmitzi, Dimitrios Z Chatzoulis, Elias Zintzaras, Ioannis Stefanidis, Evangelia E Tsironi
Backround: Genetic variants are implicated in the development of diabetic retinopathy (DR) and nephropathy (DN). The role of solute carrier family 2-facilitated glucose transporter member 1 (SLC2A1), also known as glucose transporter (GLUT1), on DR and DN remain controversial. OBJECTIVE: Examination of the influence of tag SLC2A1 single-nucleotide polymorphisms (SNPs) on the development of DR and DN during the course of type 2 diabetes mellitus (T2DM). METHODS: A total of 169 patients with DR or DN, 107 uncomplicated T2DM patients, and 315 controls were recruited and genotyped for 14 SLC2A1 tag SNPs...
December 6, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29186723/optical-coherence-tomography-angiography-in-optic-nerve-drusen
#3
Gilda Cennamo, Sabrina Tebaldi, Francesca Amoroso, Dimitri Arvanitis, Mariangelica Breve, Giovanni Cennamo
AIM: To determine the efficacy of optical coherence tomography angiography (OCT-A) in diagnosing optic nerve head flow impairment in patients with optic nerve drusen. METHODS: Patients affected by optic-nerve head drusen (ONHD) attending the Eye Clinic of the Federico II University of Naples were enrolled in this prospective case series between October 2015 and October 2016. Each patient underwent evaluation of best corrected visual acuity (BCVA), Goldman applanation tonometry, slit-lamp biomicroscopy, fundus examination, standard visual-field testing (perimetry), spectral domain (SD)-OCT and OCT-A...
November 30, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29183023/the-recovery-of-microvascular-status-evaluated-by-optical-coherence-tomography-angiography-in-patients-after-successful-macular-hole-surgery
#4
Sibel Demirel, Mehmet Fatih Kağan Değirmenci, Serdar Bilici, Özge Yanik, Figen Batıoğlu, Emin Özmert, Numan Alp
PURPOSE: The aim of this study was to evaluate the optical coherence tomography angiography (OCTA) features of patients who underwent successful macular hole (MH) surgery. METHODS: Nineteen patients who underwent surgery in a single eye due to MH and 13 healthy subjects as a control group were included in the study. Vascular densities, flow indexes, and the foveal avascular zone (FAZ) area in superficial and deep retinal capillary plexuses were evaluated by OCTA in the right eyes of the control group, and both the surgical and healthy fellow eyes of the patients...
November 29, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29161717/subconjunctival-prgf-fibrin-membrane-as-an-adjuvant-to-nonpenetrating-deep-sclerectomy-a-2-year-pilot-study
#5
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/29131051/interocular-symmetry-of-choroidal-thickness-and-volume-in-healthy-eyes-on-optical-coherence-tomography
#6
Elvira Orduna, Ana Sanchez-Cano, Maria José Luesma, Itziar Perez-Navarro, Emilio Abecia, Isabel Pinilla
BACKGROUND: We aimed to determine the physiological symmetry, with spectral-domain optical coherence tomography, of choroidal measurements in a healthy population in all the areas defined in the Early Treatment Diabetic Retinopathy Study (ETDRS). METHODS: One hundred and fifty-four eyes of 77 healthy young adults between the ages of 19 and 32 years were enrolled. Differences in choroidal thickness (CT) and volume (CV) between the left and right eyes were calculated...
November 10, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29084401/the-effect-of-a-decrease-in-intraocular-pressure-on-optic-nerve-function-in-patients-with-optic-nerve-drusen
#7
Dorota Pojda-Wilczek, Patrycja Wycisło-Gawron
PURPOSE: The aim of the study was to compare optic nerve function in eyes with brinzolamide-reduced intraocular pressure (IOP) and the fellow eyes of patients with optic disk drusen (ODD). METHODS: The study comprised 34 patients with bilateral ODD but no signs of any other ocular disease. The eyes with more advanced optic neuropathy were selected for treatment with an IOP-lowering drug, carbonic anhydrase inhibitor (brinzolamide); the fellow eyes served as the control...
October 31, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29073609/modulation-of-the-proteasome-pathway-by-nano-curcumin-and-curcumin-in-retinal-pigment-epithelial-cells
#8
J Emanuel Ramos de Carvalho, Milan T Verwoert, Ilse M C Vogels, Sabine Schipper-Krom, Cornelis J F Van Noorden, Eric A Reits, Ingeborg Klaassen, Reinier O Schlingemann
INTRODUCTION: Curcumin has multiple biological effects including the modulation of protein homeostasis by the ubiquitin-proteasome system. The purpose of this study was to assess the in vitro cytotoxic and oxidative effects of nano-curcumin and standard curcumin and characterize their effects on proteasome regulation in retinal pigment epithelial (RPE) cells. METHODS: Viability, cell cycle progression, and reactive oxygen species (ROS) production were determined after treatment with nano-curcumin or curcumin...
October 27, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29069653/intraocular-pressure-spikes-within-first-postoperative-hours-following-standard-trabeculectomy-incidence-and-associated-factors
#9
Felipe Daher, Izabela Almeida, Michele Ushida, Bernardo Soares, Syril Dorairaj, Fabio N Kanadani, Augusto Paranhos, Carolina P B Gracitelli, Tiago S Prata
PURPOSE: To evaluate the incidence of intraocular pressure (IOP) spikes within the first postoperative hours following trabeculectomy (TRAB) and to determine possible associated factors. METHODS: An observational study was carried out. We enrolled consecutive patients undergoing standard TRAB with mitomycin C. They were examined twice within the first few postoperative hours (hours 1-2 and 4-6) and 3 times after TRAB (on days 1, 7, and 30). Demographic and ocular data were collected...
October 26, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29065425/multimodal-evaluation-of-the-fellow-eye-of-patients-with-retinal-angiomatous-proliferation
#10
Amélia Martins, Cláudia Farinha, Miguel Raimundo, Marta Lopes, Ana Rita Santos, Pedro Melo, Marco Marques, João Pedro Marques, Patrícia Barreto, Maria Luz Cachulo, Catarina Neves, José Cunha-Vaz, Rufino Silva
INTRODUCTION: We conducted a multimodal, cross-sectional evaluation. METHODS: Eyes were divided into 4 study groups: controls, early/intermediate age-related macular degeneration (AMD), fellow eyes of retinal angiomatous proliferation (RAP), and RAP eyes. Patients were evaluated with spectral-domain optical coherence tomography (OCT), enhanced depth imaging-OCT, and OCT angiography (OCTA). OCTA images were processed to generate maps of the vessel density and perfusion density of the superficial and deep retinal layers (SRL and DRL) and the choriocapillaris level (CL)...
October 25, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29050001/expression-of-angiogenic-and-inflammatory-factors-in-choroidal-neovascularisation-derived-retinal-pigment-epithelium
#11
Christoph Ehlken, Maria-Magdalena Guichard, Günther Schlunck, Anima D Bühler, Gottfried Martin, Hansjürgen T Agostini
PURPOSE: Anti-angiogenic treatment is well established in the management of exudative age-related macular degeneration (AMD), but not sufficient in all patients. The characterisation of factors driving this chronic disease could serve to identify additional treatment options. The purpose of this study was to assess gene expression patterns and distinct changes in cells derived from surgically extracted choroidal neovascularisation (CNV) membranes. MATERIALS AND METHODS: The expression of >11,000 genes was analysed by means of a microarray in cells cultured from 2 late-stage CNV membranes compared to primary human retinal pigment epithelium (RPE) and ARPE-19 cells...
October 20, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29045946/subfoveal-choroidal-and-macular-thickness-changes-after-phacoemulsification-using-enhanced-depth-imaging-optical-coherence-tomography
#12
Huizhong Jiang, Zhen Li, Ran Sun, Dachuan Liu, Ningpu Liu
PURPOSE: To assess changes in the thickness of the subfoveal retina and choroid after phacoemulsification using enhanced depth imaging optical coherence tomography (EDI-OCT). METHODS: A prospective study was conducted on 100 patients. The subfoveal choroidal thickness (SFCT) was measured at 7 points and the retinal thickness was measured at 5 points (before surgery, and 1 day, 1 week, 1 month, and 3 months after surgery). RESULTS: The foveal choroidal thickness showed a thickening trend (but p > 0...
October 19, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28977805/tomographic-structural-changes-of-retinal-layers-after-internal-limiting-membrane-peeling-for-macular-hole-surgery
#13
Mun Yueh Faria, Nuno P Ferreira, Diana M Cristóvao, Sofia Mano, David Cordeiro Sousa, Manuel Monteiro-Grillo
PURPOSE: To highlight tomographic structural changes of retinal layers after internal limiting membrane (ILM) peeling in macular hole surgery. METHODS: Nonrandomized prospective, interventional study in 38 eyes (34 patients) subjected to pars plana vitrectomy and ILM peeling for idiopathic macular hole. Retinal layers were assessed in nasal and temporal regions before and 6 months after surgery using spectral domain optical coherence tomography. RESULTS: Total retinal thickness increased in the nasal region and decreased in the temporal region...
October 5, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28942454/peripapillary-choroidal-thickness-analysis-using-swept-source-optical-coherence-tomography-in-glaucoma-patients-a-broader-approach
#14
Luis Emilio Pablo, Beatriz Cameo, Maria Pilar Bambo, Vicente Polo, Jose Manuel Larrosa, Maria Isabel Fuertes, Noemi Güerri, Blanca Ferrandez, Elena Garcia-Martin
AIMS: To evaluate and compare peripapillary choroidal thickness (PPCT) in a wide area around the optic disk and various choroidal established zones in healthy controls and primary open-angle glaucoma (POAG) patients using a new swept-source (SS) optical coherence tomography (OCT) device. METHODS: A total of 246 eyes were finally included in this observational, prospective, cross-sectional study: 111 healthy controls and 135 POAG patients. The healthy subjects were divided into 2 populations: the teaching population (25 used to establish choroidal zones) and the validating population (86 used for comparing choroidal thickness with POAG patients)...
September 23, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28942445/effect-of-biodegradable-scleral-plugs-containing-curcumin-on-proliferative-vitreoretinopathy
#15
Jun Zhang, Nalei Zhou, Bin Zhang, Jingxue Ma
BACKGROUND: This study aimed to explore the inhibitory effect of biodegradable scleral plugs containing curcumin on rabbits with proliferative vitreoretinopathy (PVR). MATERIALS AND METHODS: The biodegradable scleral plugs containing curcumin were prepared by dissolving PLGA [poly(lactide-co-glycolide)] and curcumin. In total, 30 rabbits were divided into 2 groups: the model group received a vitreous injection of self-blood, and the treatment group received a vitreous injection of self-blood plus biodegradable scleral implants containing 1...
September 23, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28930746/early-assessment-of-the-risk-factors-for-diabetic-retinopathy-can-reduce-the-risk-of-peripheral-arterial-and-cardiovascular-diseases-in-type-2-diabetes
#16
Juan Tang, Tao Li, Pinhong Li, Yuefei Ma, Momo Liu, Qiaoyun Shan, Fengqi Guo, Ting Zhou, Qianping Wei
BACKGROUNDS: There is still a lack of consensus about how to assess the risk of peripheral arterial disease (PAD) and cardiovascular disease (CVD) in patients with diabetic retinopathy (DR). AIMS: We investigated the risk factors for DR and their association with PAD and CVD in patients with type 2 diabetes (T2D). METHODS: A total of 1,421 patients diagnosed with T2D participated in this study. DR stages were classified as non-DR, nonproliferative DR (NPDR), or proliferative DR (PDR)...
September 21, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28903123/potential-effects-of-hormone-therapy-in-type-2-idiopathic-macular-telangiectasia
#17
Ute E K Wolf-Schnurrbusch, Irene Leung, Ferenc B Sallo, Traci E Clemons, Emily Y Chew, Alan C Bird, Tunde Peto
PURPOSE: To investigate the influence of hormone therapy with tamoxifen or estrogens on morphological changes in macular telangiectasia (MacTel) type 2 patients as revealed clinically in multiple imaging modalities. METHODS: Patients with a history of tamoxifen or estrogen use were selected from the cohort of the MacTel Study. A race-, age- and best-corrected visual acuity-matched group of MacTel participants not under hormone therapy served as the comparison group...
September 13, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28877529/retinal-nerve-fiber-layer-thickness-changes-in-the-pseudoexfoliation-syndrome-a-meta-analysis-of-case-control-studies
#18
Ji-Guo Yu, Qing Huang, Xiao-Fang Zhou, Yi Ding, Jing Li, Yi Xiang
PURPOSE: To evaluate and compare changes in retinal nerve fiber layer (RNFL) thickness in patients with the pseudoexfoliation syndrome (PXS) and healthy controls. METHODS: Case-control studies were selected through an electronic search of the Cochrane Controlled Trials Register, PubMed, and Embase. Results were reviewed to ensure that the included studies met prespecified inclusion/exclusion criteria, and the quality of each study was assessed using the Newcastle-Ottawa Scale...
September 7, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28877522/ganglion-cell-inner-plexiform-layer-thickness-in-different-glaucoma-stages-measured-by-optical-coherence-tomography
#19
Maja Zivkovic, Volkan Dayanir, Marko Zlatanovic, Gordana Zlatanovic, Vesna Jaksic, Predrag Jovanovic, Marija Radenkovic, Jasmina Djordjevic-Jocic, Gordana Stankovic-Babic, Svetlana Jovanovic
AIM: To compare ganglion cell (GCL) and inner plexiform layer (IPL) thickness in patients at different stages of primary open-angle glaucoma (POAG), determine their sensitivity and specificity values, and correlate thickness values with mean deviations (MD). METHODS: This prospective, cross- sectional study was conducted in a group of patients with confirmed POAG who were compared to an age- and gender-matched control group. Glaucomatous damage was classified according to the Hodapp-Parrish-Anderson scale: glaucoma stage 1 (early), glaucoma stage 2 (moderate), and glaucoma stage 3 (severe)...
September 7, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28858875/clinical-metabolomics-and-glaucoma
#20
João Barbosa-Breda, Uwe Himmelreich, Bart Ghesquière, Amândio Rocha-Sousa, Ingeborg Stalmans
Glaucoma is one of the leading causes of irreversible blindness worldwide. However, there are no biomarkers that accurately help clinicians perform an early diagnosis or detect patients with a high risk of progression. Metabolomics is the study of all metabolites in an organism, and it has the potential to provide a biomarker. This review summarizes the findings of metabolomics in glaucoma patients and explains why this field is promising for new research. We identified published studies that focused on metabolomics and ophthalmology...
September 1, 2017: Ophthalmic Research
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