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Moritz Lindner, Sebastian Kosanetzky, Maximilian Pfau, Jennifer Nadal, Lukas A Gördt, Steffen Schmitz-Valckenberg, Matthias Schmid, Frank G Holz, Monika Fleckenstein
Purpose: To assess the impact of distinct atrophy border characteristics based on spectral-domain optical coherence tomography (SD-OCT) imaging on local atrophy progression. Methods: Patients with geographic atrophy (GA) secondary to AMD were recruited in the context of the Longitudinal Fundus Autofluorescence in Age-related Macular Degeneration and Directional Spread in Geographic Atrophy studies (NCT00393692, NCT02051998). Horizontal and vertical SD-OCT scans were acquired at sequential visits using a device allowing for anatomically accurate registration of follow-up to baseline scans...
March 20, 2018: Investigative Ophthalmology & Visual Science
Sarah Thiele, Maximilian Pfau, Petra P Larsen, Monika Fleckenstein, Frank G Holz, Steffen Schmitz-Valckenberg
Purpose: To evaluate the development of central atrophy in eyes with age-related macular degeneration (AMD). Methods: Six-year longitudinal multimodal retinal imaging data (MODIAMD study) from 98 eyes of 98 subjects with non-late-stage AMD in the study eye at baseline were analyzed for the presence of central atrophy at each annual follow-up visit. Development, manifestation, and further progression of complete retinal pigment epithelium and outer retinal atrophy (cRORA) by multimodal imaging data were compared with atrophy detection based on color fundus photography only...
March 20, 2018: Investigative Ophthalmology & Visual Science
Michael E Jansen, Chelsey J Krambeer, Daniel S Kermany, Jana N Waters, Wayne Tie, Sepehr Bahadorani, Julia Singer, Jordan M Comstock, Kendall W Wannamaker, Michael A Singer
BACKGROUND AND OBJECTIVE: The purpose of this study is to compare cancellation and no-show rates in patients with diabetic macular edema (DME) and exudative macular degeneration (wet AMD). PATIENTS AND METHODS: An anonymous survey was sent to 1,726 retina specialists inquiring as to the number of appointments their patients with DME and wet AMD attended, cancelled, or did not show up for in 2014 and 2015. RESULTS: Data were obtained on 109,599 appointments...
March 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Felipe F Conti, Fabiana Q Silva, Sunil K Srivastava, Justis P Ehlers, Andrew P Schachat, Rishi P Singh
BACKGROUND AND OBJECTIVE: In the ASSESS study, patients with neovascular age-related macular degeneration transitioned from other anti-vascular endothelial growth factor therapies to intravitreous aflibercept (Eylea; Regeneron, Tarrytown, NY) injections (IAI). The purpose was to determine the 36-month outcomes following the change from a fixed 24-month IAI dosing regimen to a routine clinical practice regimen. PATIENTS AND METHODS: Patients were treated with a fixed bimonthly regimen for the first 2 years...
March 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Mohammed Ashraf, Touka Banaee, Fabiana Q Silva, Rishi P Singh
BACKGROUND AND OBJECTIVE: Anti-vascular endothelial growth factor (VEGF) therapy is the treatment of choice for cases with neovascular age-related macular degeneration (AMD). Switching to an alternate anti-VEGF has been suggested as a possible option for resistant cases. The purpose of this review is to evaluate whether the timing of switching affects treatment outcomes. PATIENTS AND METHODS: A review of published literature was performed looking at all studies where patients with refractory neovascular AMD were switched to an alternative anti-VEGF...
March 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Amit Meshi, Tiezhu Lin, Kunny Dans, Kevin C Chen, Manuel Amador, Kyle Hasenstab, Ilkay Kilic Muftuoglu, Eric Nudleman, Daniel Chao, Dirk-Uwe Bartsch, William R Freeman
PURPOSE: To compare retinal pathology visualization in multispectral scanning laser ophthalmoscope imaging between the Spectralis and Optos devices. METHODS: This retrospective cross-sectional study included 42 eyes from 30 patients with age-related macular degeneration (19 eyes), diabetic retinopathy (10 eyes), and epiretinal membrane (13 eyes). All patients underwent retinal imaging with a color fundus camera (broad-spectrum white light), the Spectralis HRA-2 system (3-color monochromatic lasers), and the Optos P200 system (2-color monochromatic lasers)...
March 16, 2018: Retina
Serena Fragiotta, Carmela Carnevale, Alessandro Cutini, Erika Rigoni, Pier Luigi Grenga, Enzo Maria Vingolo
SIGNIFICANCE: The authors analyze factors influencing bivariate contour ellipse area (BCEA) in healthy and pathologic eyes and how such factors may affect isolated (static BCEA) or microperimetric fixation (dynamic BCEA). They conclude that aging increases both dynamic BCEA and examination time, whereas static BCEA offers less variance and the maximum distinction with pathologic eyes. PURPOSE: The aim of this study was to assess factors influencing BCEA and the recording method that offer less variability and thus maximum distinction between healthy and pathologic eyes...
March 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Vincent Daien, Vuong Nguyen, Nigel Morlet, Jennifer J Arnold, Rohan W Essex, Stephanie Young, Alex Hunyor, Mark C Gillies, Daniel Barthelmes
PURPOSE: To evaluate outcomes and predictive factors of visual acuity (VA) change after cataract surgery in patients being treated for neovascular age-related macular degeneration (nAMD). DESIGN: Retrospective, matched case-control study. METHODS: We studied eyes undergoing cataract surgery that had been tracked since they first started treatment for nAMD. These eyes were compared with a cohort of unoperated phakic eyes being treated for nAMD (three per case) matched for treatment duration before cataract surgery, baseline VA, age and length of follow-up...
March 14, 2018: American Journal of Ophthalmology
Sandrina Nunes, Dalila Alves, Patrícia Barreto, Miguel Raimundo, Maria da Luz Cachulo, Cláudia Farinha, Inês Laíns, João Rodrigues, Carlos Almeida, Luísa Ribeiro, João Figueira, Lelita Santos, Rufino Silva
OBJECTIVES: This study aimed to characterize the association of lifestyle and nutritional risk profiles with age-related macular degeneration (AMD) in two subpopulations with differing AMD prevalence. METHODS: This case-control study (n = 1992) included 768 patients with AMD and 1224 age- and sex-matched participants without AMD with a single visit at a primary health care unit. Enrolled participants completed a validated lifestyle and food frequency questionnaire...
March 13, 2018: Nutrition
Xun Li, Hongmei Luo, Cheng Zuo, Zirong Zhang, Junjun Zhang, Meixia Zhang
PURPOSE: In this study, we aimed to evaluate the efficacy and safety of intravitreal conbercept in patients with treatment-naive neovascular age-related macular degeneration in real-life setting. METHODS: Three consecutive intravitreal injections of conbercept following a pro re nata protocol. The main outcomes were the changes of Early Treatment Diabetic Retinopathy Study best-corrected visual acuity and central retinal thickness between the baseline and the 12th month...
March 15, 2018: Retina
Umut Arslan, Emin Özmert, Sibel Demirel, Firdevs Örnek, Figen Şermet
PURPOSE: One of the main reasons for apoptosis and dormant cell phases in degenerative retinal diseases such as retinitis pigmentosa (RP) is growth factor withdrawal in the cellular microenvironment. Growth factors and neurotrophins can significantly slow down retinal degeneration and cell death in animal models. One possible source of autologous growth factors is platelet-rich plasma. The purpose of this study was to determine if subtenon injections of autologous platelet-rich plasma (aPRP) can have beneficial effects on visual function in RP patients by reactivating dormant photoreceptors...
March 15, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
Achim Fieß, Alexander Karl-Georg Schuster, Stefan Nickels, Heike M Elflein, Andreas Schulz, Manfred E Beutel, Maria Blettner, Norbert Pfeiffer
PURPOSE: Low birth weight (BW) is linked to impaired organ development in childhood, including altered ocular morphological and functional development. The aim of this study was to evaluate whether low BW has long-term effects on visual acuity and refraction in adulthood. METHODS: The Gutenberg Health Study is a population-based, observational cohort study in Germany, including 15 010 participants aged between 35 and 74 years. These participants were divided into three different BW groups (low: <2500 g; normal: between 2500 and 4000 g; and high: >4000 g)...
March 15, 2018: British Journal of Ophthalmology
Jing Zhao, Ya Xing Wang, Qi Zhang, Wen Bin Wei, Liang Xu, Jost B Jonas
To study macular choroidal layer thickness, 3187 study participants from the population-based Beijing Eye Study underwent spectral-domain optical coherence tomography with enhanced depth imaging for thickness measurements of the macular small-vessel layer, including the choriocapillaris, medium-sized choroidal vessel layer (Sattler's layer) and large choroidal vessel layer (Haller's layer). In multivariate analysis, greater thickness of all three choroidal layers was associated (all P < 0.05) with higher prevalence of age-related macular degeneration (AMD) (except for geographic atrophy), while it was not significantly (all P > 0...
March 13, 2018: Scientific Reports
Kon-Ichi Arai, Tsutomu Yasukawa, Aki Kato, Ayae Kubota, Hideaki Usui, Noriaki Takase, Soichiro Kuwayama, Yuichiro Ogura
AIMS: Anti-vascular endothelial growth factor agents effectively treat age-related macular degeneration and myopic choroidal neovascularization (CNV). Tissue plasminogen activator (tPA), a fibrinolytic compound, is used as an adjuvant to displace submacular hemorrhage and to treat type 2 CNV. The purpose of this study was to investigate in in vitro and in vivo experiments the antiangiogenic impact of tPA itself. METHODS: The impact of tPA on the proliferation of human umbilical vein endothelial cells (HUVECs) was assessed by an XTT assay [2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide]...
March 13, 2018: Ophthalmic Research
Jin Qiong Zhou, Ya Xing Wang, Liang Xu, Liang Zhao, Shuang Wang, Jie Xu, Qi Sheng You, Hua Yang, Wen Bin Wei, Jost B Jonas
PURPOSE: To examine frequency and associations of retinal hemorrhages. METHODS: The population-based Beijing Eye Study included 3,468 individuals. Monoscopic fundus photographs were examined for hemorrhages. RESULTS: Retinal hemorrhages were detected in 515 eyes (429 individuals) (prevalence: 7.6%; 95% confidence interval [CI]: 7.0-8.0 per eye; 12.7%; 95% CI: 11.7-13.7 per person). Higher prevalence of retinal hemorrhages was correlated (multivariate analysis) with higher systolic blood pressure (P < 0...
March 12, 2018: Retina
Sobha Sivaprasad, Elizabeth Tschosik, Audrey Kapre, Rohit Varma, Neil M Bressler, Miriam Kimel, Chantal Dolan, David Silverman
PURPOSE: Geographic atrophy (GA) is an advanced form of age-related macular degeneration characterized by progressive, irreversible visual function loss. This analysis evaluates the psychometric properties of the 25-Item National Eye Institute Visual Function Questionnaire (NEI VFQ-25) Composite, Near Activity, and Distance Activity scores in patients with GA. DESIGN: Reliability and validity study. METHODS: Reliability and validity were tested with NEI VFQ-25 data collected from 100 subjects with GA from United States' sites of the phase 2 Mahalo study of lampalizumab (NCT01229215)...
March 9, 2018: American Journal of Ophthalmology
F Vizzarri, M Palazzo, S Bartollino, D Casamassima, B Parolini, P Troiano, C Caruso, C Costagliola
Ultraviolet-radiation exerts a well-known role in the development of various ocular diseases and may contribute to the progress of age-related macular degeneration. Therefore, the use of compounds able to protect the eyes from UV-induced cellular damage is challenging. The aim of this study has been to test the protective effects of an antioxidant topical formulation against UV-induced damage in rabbit eyes. Twelve male rabbits were used. Animals were divided into 4 groups of 3 animals each. Control group (CG) did not receive any irradiation and/or eye drop...
March 12, 2018: Physiological Research
Ali Hariri, Junxin Wang, Yeji Kim, Anamik Jhunjhunwala, Daniel L Chao, Jesse V Jokerst
Chorioretinal imaging has a crucial role for the patients with chorioretinal vascular diseases, such as neovascular age-related macular degeneration. Imaging oxygen gradients in the eye could better diagnose and treat ocular diseases. Here, we describe the use of photoacoustic ocular imaging (PAOI) in measuring chorioretinal oxygen saturation (CR  -  sO2) gradients in New Zealand white rabbits (n  =  5) with ocular ischemia. We observed good correlation (R2  =  0.98) between pulse oximetry and PAOI as a function of different oxygen percentages in inhaled air...
March 2018: Journal of Biomedical Optics
Johann Schottler, Niklas Randoll, Ralph Lucius, Amke Caliebe, Johann Roider, Alexa Klettner
Anti-Vascular Endothelial Growth Factor (VEGF) therapy is given repeatedly for an extended period of time to patients when treated for age-related macular degeneration. While short-term effects of anti-VEGF agents on retinal pigment epithelial (RPE) cells have been investigated, the effects of long-term and repeated treatment on these cells are scarce. In this study, we have investigated the effects of anti-VEGF treatment after long-term, repeated treatment on cell aging and morphology. The experiments were conducted in primary porcine RPE cells passage one and two...
March 6, 2018: Experimental Eye Research
Chi Yun Doreen Ho, Zhichao Wu, Andrew Turpin, David J Lawson, Chi D Luu, Allison M McKendrick, Robyn H Guymer
Purpose: To determine the feasibility of a tablet-based application to detect changes in retinal sensitivity and correlations with underlying pathology in neovascular age-related macular degeneration (nAMD) eyes undergoing treatment and in at-risk fellow eyes. Method: Participants with nAMD in at least one eye were recruited, examined, and imaged using spectral-domain optical coherence tomography (SD-OCT). Retinal sensitivity was measured within the central 5° at 12 locations using a customized test delivered on an iPad...
March 2018: Translational Vision Science & Technology
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