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Retinal occlusion

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https://www.readbyqxmd.com/read/28632411/the-effect-of-dexamethasone-intravitreal-implant-on-retinal-nerve-fiber-layer-in-patients-diagnosed-with-branch-retinal-vein-occlusion
#1
Orhan Ayar, Atilla Alpay, Yaran Koban, Mehmet Orcun Akdemir, Serpil Yazgan, Sılay Canturk Ugurbas, Suat Hayri Ugurbas
PURPOSE: To evaluate the effect of a single dose of intravitreal dexamethasone (DEX) implant on retinal nerve fiber layer (RNFL) thickness in patients with branch retinal vein occlusion (BRVO) in a 6-month period. MATERIALS AND METHODS: This retrospective observational study included the patients with BRVO who received intravitreal DEX implant and whose assessment included the baseline RNFL thickness measurements. The data of 26 eyes of 24 patients were retrospectively analyzed...
June 20, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28627981/early-vitrectomy-for-dense-vitreous-hemorrhage-in-adults-with-non-traumatic-and-non-diabetic-retinopathy
#2
Ting Zhang, Jingjing Zhang, Xiaolei Sun, Jingyi Tian, Weiyun Shi, Gongqiang Yuan
Objective To evaluate the etiologies for dense vitreous hemorrhage in adults with non-traumatic and reveal management of early vitrectomy for the disease. Methods Study included 105 eyes from 105 patients. Outcome measures were etiologies of vitreous hemorrhage, formation of retinal and/or disk neovascular membrane (NVM), incidence of retinal tear and detachment, visual acuity (VA) and postoperative complications. Results Mean time between presentation and surgery was 7.1 days. The most common etiologies were retinal vein occlusion (RVO) (58...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28620704/ranibizumab-versus-dexamethasone-implant-for-central-retinal-vein-occlusion-the-ranidex-study
#3
Irini Chatziralli, George Theodossiadis, Stamatina A Kabanarou, Efstratios Parikakis, Tina Xirou, Panagiotis Mitropoulos, Panagiotis Theodossiadis
PURPOSE: To compare intravitreal ranibizumab and dexamethasone implant in patients with macular edema (ME) secondary to central retinal vein occlusion (CRVO). METHODS: Participants were 42 treatment naive patients with ME due to CRVO, who received either intravitreal 0.5 mg ranibizumab (n = 25) or intravitreal 0.7 mg dexamethasone implant (n = 17). The main outcomes included the mean change in best corrected visual acuity (BCVA) and central subfield thickness (CST) at month 12 compared to baseline in the two groups...
June 15, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28620279/interleukin-6-deficiency-attenuates-retinal-ganglion-cell-axonopathy-and-glaucoma-related-vision-loss
#4
Franklin D Echevarria, Cathryn R Formichella, Rebecca M Sappington
The pleotropic cytokine interleukin-6 (IL-6) is implicated in retinal ganglion cell (RGC) survival and degeneration, including that associated with glaucoma. IL-6 protects RGCs from pressure-induced apoptosis in vitro. However, it is unknown how IL-6 impacts glaucomatous degeneration in vivo. To study how IL-6 influences glaucomatous RGC axonopathy, accompanying glial reactivity, and resultant deficits in visual function, we performed neural tracing, histological, and neurobehavioral assessments in wildtype (B6;129SF2/J; WT) and IL-6 knock-out mice (B6;129S2-IL6(t)(m1kopf)/J; IL-6-/-) after 8 weeks of unilateral or bilateral microbead-induced glaucoma (microbead occlusion model)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28619445/effects-of-kallidinogenase-on-retinal-edema-and-size-of-non-perfused-areas-in-mice-with-retinal-vein-occlusion
#5
Anri Nishinaka, Shinichiro Fuma, Yuki Inoue, Masamitsu Shimazawa, Hideaki Hara
Kallidinogenase has been used to treat retinal vein occlusion (RVO) in patients, although there are no evidences on the effects of kallidinogenase on the retinal edema and the non-perfused areas in eyes with a RVO. We have established a murine RVO model with retinal edema and non-perfused areas. The purpose of this study was to evaluate the effects of kallidinogenase on the retinal edema and size of the non-perfused areas in the mouse RVO model. We evaluated the thickness of the retinal layers and size of the non-perfused areas, and the blood flow by laser speckle flowgraphy in RVO model...
May 27, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28614137/swept-source-optical-coherence-tomography-angiography-in-rickettsial-retinitis
#6
Rim Kahloun, Bechir Jelliti, Imen Ksiaa, Hager Ben Amor, Sonia Zaouali, Marco Lupidi, Salim Ben Yahia, Moncef Khairallah
PURPOSE: To report optical coherence tomography angiography findings in a patient with rickettsial retinitis. METHODS: A 29-year-old man complaining of acute blurring vision in the right eye associated with Rickettsia conorii infection underwent a comprehensive ocular examination, fluorescein angiography, spectral-domain optical coherence tomography, and swept-source optical coherence tomography angiography. RESULTS: Funduscopy showed two large areas of retinitis in the inferior macula along the distribution of the inferotemporal artery with associated retinal hemorrhages, retinal edema, and serous retinal detachment...
June 13, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28614133/time-course-of-changes-in-metamorphopsia-following-intravitreal-ranibizumab-injection-for-branch-retinal-vein-occlusion
#7
Yoshimi Sugiura, Fumiki Okamoto, Shohei Morikawa, Yoshifumi Okamoto, Takahiro Hiraoka, Tetsuro Oshika
PURPOSE: To evaluate the effects of intravitreal ranibizumab injection (IVR) on metamorphopsia in patients with branch retinal vein occlusion (BRVO) and to assess the relationship between retinal microstructure and metamorphopsia. METHODS: Subjects were 39 eyes of 39 patients with branch retinal vein occlusion. The severity of metamorphopsia was quantified using the M-CHARTS before and 1, 2, 3, 4, 5, and 6 months after treatment. Based on optical coherence tomography (OCT) images, we assessed central retinal thickness (CRT) and status of the external limiting membrane (ELM) and ellipsoid zone (EZ)...
June 13, 2017: Retina
https://www.readbyqxmd.com/read/28613361/optical-coherence-tomography-angiography-of-venous-loops-in-diabetic-retinopathy
#8
Chiara Giuffrè, Adriano Carnevali, Maria Vittoria Cicinelli, Lea Querques, Giuseppe Querques, Francesco Bandello
Venous loops are relatively rare manifestations of diabetic retinopathy. The authors describe a case characterized by the development of a venous loop during a 3-year period. Optical coherence tomography angiography (OCTA) revealed a hyperintense signal from the lesion, attesting an ordinary flow into the venous loop. OCTA also showed an area of capillary loss in proximity of the lesion, which is in agreement with the proposed pathogenesis for venous loops, developed to bypass an area of retinal vessels occlusion...
June 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28613358/oct-angiography-assessment-of-retinal-ischemia-in-susac-s-syndrome
#9
Karina Spiess, Jesús Ramón García Martínez
Descriptive study of two patients affected by Susac's syndrome (SuS) focusing on the chronic retinal tissue damage assessed by optical coherence tomography (OCT) and OCT angiography (OCTA). To the authors' knowledge, this is the first case series reporting OCTA in SuS. OCTA imaging revealed secondary hypoxia due to branch retinal artery occlusion of the deep capillary plexus, with additional involvement of the superficial capillary network in one case. OCTA is a noninvasive and quick diagnostic tool for detecting hypoxic retinal damage in SuS...
June 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28613352/comparison-of-ranibizumab-and-bevacizumab-for-macular-edema-secondary-to-retinal-vein-occlusions-in-routine-clinical-practice
#10
Mehnaz Khan, Karen M Wai, Fabiana Q Silva, Sunil Srivastava, Justis P Ehlers, Aleksandra Rachitskaya, Amy Babiuch, Ryan Deasy, Peter K Kaiser, Andrew P Schachat, Alex Yuan, Rishi P Singh
BACKGROUND AND OBJECTIVE: To determine outcomes of intravitreal ranibizumab (IVR) (Lucentis; Genentech, South San Francisco, CA) versus bevacizumab (IVB) (Avastin; Genentech, South San Francisco, CA) for treatment of macular edema (ME) secondary to retinal vein occlusion (RVO) in routine clinical practice. PATIENTS AND METHODS: A retrospective study identified treatment-naïve patients with ME secondary to RVO where treatment with either IVB or IVR was initiated...
June 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28613222/laboratory-evaluation-of-hypercoagulable-states-in-patients-with-central-retinal-vein-occlusion-who-are-less-than-56-years-of-age
#11
Qingyun Liu, J Michael Lahey, Rachel Karlen, Jay M Stewart
PURPOSE: To investigate whether the results of early tests for hypercoagulability are correlated with the development of central retinal vein occlusion risk factors later in life and to evaluate the necessity of these tests in younger patients. METHODS: This was a retrospective, observational case series. From January 1995 to December 2014, 55 patients aged below 56 years with central retinal vein occlusion (CRVO) were enrolled in the study. Laboratory evaluations for homocysteine, activated protein C resistance, protein C activity, protein S activity, antithrombin III activity, antiphospholipid antibodies, and anticardiolipin antibodies were obtained at the onset of CRVO...
April 24, 2017: Retina
https://www.readbyqxmd.com/read/28613217/macular-edema-after-cataract-surgery-in-eyes-with-preoperative-retinal-vein-occlusion
#12
Han Joo Cho, Hyun Ji Hwang, Hyoung Seok Kim, Dong Won Lee, Chul Gu Kim, Byoung Yeop Kim, Jong Woo Kim
PURPOSE: To evaluate the incidence of pseudophakic macular edema (PME) in eyes with a history of retinal vein occlusion before cataract surgery and to identify any associated risk factors. METHODS: The records of 21,332 eyes that underwent cataract surgery were retrospectively reviewed. Eyes that had retinal vein occlusion preoperatively with no evidence of macular pathology on optical coherence tomography at the time of surgery and no macular edema treatment at least 6 months before surgery were included...
May 2, 2017: Retina
https://www.readbyqxmd.com/read/28610573/correlation-between-short-and-long-term-effects-of-intravitreal-ranibizumab-therapy-on-macular-edema-after-branch-retinal-vein-occlusion-a-prospective-observational-study
#13
Yoshiro Minami, Taiji Nagaoka, Akihiro Ishibazawa, Akitoshi Yoshida
BACKGROUND: The correlation between the short- and long-term effects of intravitreal ranibizumab (IVR) on macular edema after branch retinal vein occlusion (BRVO) remains unclear. We assessed the correlation between the short- and long-term effects of IVR on macular edema after BRVO. METHODS: Twenty-one eyes with macular edema after BRVO were enrolled in this prospective observational study. We measured the foveal thickness (FT) and the best-corrected visual acuity (BCVA) before, 1 day after, and 1 month after IVR (0...
June 13, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28605930/central-retinal-vein-occlusion-after-coronary-artery-bypass-surgery-a-case-report
#14
Ufuk Ciloglu, Mustafa Aldag, Sebnem Albeyoglu, Veysel Aykut, Canan Karakaya, Burcu Gonul
OBJECTIVE: The aim of this study is to report a case of central retinal vein occlusion (CRVO) after coronary artery bypass graft (CABG) surgery. In this report, we present the third case in the literature with CRVO after cardiopulmonary bypass (CPB), and the first case after CABG. CASE REPORT: A 59-year-old male patient complaining of chest pain was admitted to our hospital. The patient underwent an elective coronary angiography and was diagnosed with three-vessel coronary artery disease...
May 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/28603574/central-retinal-vein-occlusion-in-younger-swedish-adults-case-reports-and-review-of-the-literature
#15
Elisabeth Wittström
PURPOSE: To investigate associated systemic diseases, other conditions, visual outcome, ocular complications and treatment in Swedish patients younger than 50 years with central retinal vein occlusion (CRVO) and reviewing the literature. METHODS: Twenty-two patients with CRVO, younger than 50 years, were examined with full-field electroretinography (ERG) within 3 months after a thrombotic event, or were periodically examined and were observed for at least 6 months...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28601911/repeatability-of-ganglion-cell-inner-plexiform-layer-thickness-measurements-using-spectral-domain-oct-in-branch-retinal-vein-occlusion
#16
Yeon Hee Lee, Min-Su Kim, Seung Il Ahn, Hye Jin Park, Kyung Sup Shin, Jung-Yeul Kim
PURPOSE: To analyze the repeatability of thickness measurements of the central macula, ganglion cell-inner plexiform layer (GC-IPL), and retinal nerve fiber layer (RNFL) using spectral-domain optical coherence tomography (SD-OCT) before and after treatment of macular edema in branch retinal vein occlusion (BRVO). METHODS: We analyzed patients with BRVO who visited our retinal clinic. The repeatability of the thickness measurements were compared using the intraclass correlation coefficient (ICC) and coefficient of variation (COV) of affected versus normal fellow eyes...
June 11, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28592811/evaluating-the-impact-of-vitreomacular-adhesion-on-anti-vegf-therapy-for-retinal-vein-occlusion-using-machine-learning
#17
Sebastian M Waldstein, Alessio Montuoro, Dominika Podkowinski, Ana-Maria Philip, Bianca S Gerendas, Hrvoje Bogunovic, Ursula Schmidt-Erfurth
Vitreomacular adhesion (VMA) represents a prognostic biomarker in the management of exudative macular disease using anti-vascular endothelial growth factor (VEGF) agents. However, manual evaluation of VMA in 3D optical coherence tomography (OCT) is laborious and data on its impact on therapy of retinal vein occlusion (RVO) are limited. The aim of this study was to (1) develop a fully automated segmentation algorithm for the posterior vitreous boundary and (2) to study the effect of VMA on anti-VEGF therapy for RVO...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591282/incidence-of-anterior-segment-neovascularization-during-intravitreal-treatment-for-macular-edema-secondary-to-central-retinal-vein-occlusion
#18
Luiz Filipe Adami Lucatto, Octaviano Magalhães-Junior, Juliana M B Prazeres, Adriano M Ferreira, Ramon A Oliveira, Nilva S Moraes, Flávio E Hirai, Mauricio Maia
Purpose: To analyze the effects of injections of intravitreal triamcinolone acetonide (IVTA) and intravitreal bevacizumab (IVB) on the incidence rates of anterior segment neovascularization (ASN) and neovascular glaucoma (NVG) in patients with macular edema secondary to central retinal vein occlusion (CRVO). Methods: In this prospective, randomized, double-masked, sham-controlled study, 35 patients with macular edema following CRVO were randomized to intravitreal bevacizumab, intravitreal triamcinolone acetonide, or sham injections during the first 6 months of the study...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28580223/carotid-cavernous-fistula-with-central-retinal-artery-occlusion-and-terson-syndrome-after-mid-facial-trauma
#19
Satya Karna, Mukesh Jain, Md Shahid Alam, Bipasha Mukherjee, Rajiv Raman
Objectives: To report a rare occurrence combination of central retinal artery occlusion (CRAO) and Terson syndrome in a Barrow's type A carotid cavernous fistula (CCF) patient. Methods: Observational case report. Results: A twenty-year-old male patient with a history of road traffic accident presented with periorbital swelling and redness in the left eye. Examination revealed a CRAO with intraretinal and preretinal hemorrhages. On imaging, type A CCF and subarachnoid hemorrhage were detected. He underwent embolization of the fistula for cosmetic blemish...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28579550/the-application-of-optical-coherence-tomography-angiography-in-retinal-diseases
#20
REVIEW
Kumar Sambhav, Sandeep Grover, K V Chalam
Optical coherence tomography angiography (OCTA) is a new, non-invasive imaging technique that generates real time volumetric data of chorioretinal vasculature and its flow pattern. With the advent of high-speed optical coherence tomography, established en-face chorioretinal segmentation, and efficient algorithms, OCTA generate images that resembles an angiogram. The principle of OCTA involves determining the change in backscattering between consecutive B-scans and then attributing the differences to the flow of erythrocytes through retinal blood vessels...
June 1, 2017: Survey of Ophthalmology
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