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choroidal neovascularization

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https://www.readbyqxmd.com/read/27913869/ranibizumab-for-vascularized-pigment-epithelial-detachment-1-year-anatomic-and-functional-results
#1
Olivier Chevreaud, Hassiba Oubraham, Salomon Y Cohen, Camille Jung, Rocio Blanco-Garavito, Farah Gherdaoui, Eric H Souied
PURPOSE: To assess the anatomical and functional efficacy of ranibizumab on vascularized pigment epithelial detachment (V-PED) secondary to neovascular age-related macular degeneration (nAMD). METHODS: One hundred and nine patients (116 eyes) were retrospectively selected from medical records of 2097 patients who benefited from intravitreal injection between January 2011 and June 2013 in a tertiary-care University-based Department of Ophthalmology. Inclusion criteria were: nAMD, treatment-naive eyes, presence of V-PED higher than 250 μm, intravitreal ranibizumab with a loading phase, followed by a pro-re-nata regimen, and 1-year follow-up...
December 3, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27913440/optical-coherence-tomographic-angiography-of-choroidal-neovascularization-ill-defined-with-fluorescein-angiography
#2
Mehrdad Malihi, Yali Jia, Simon S Gao, Christina Flaxel, Andreas K Lauer, Thomas Hwang, David J Wilson, David Huang, Steven T Bailey
PURPOSE: To evaluate the morphological structure of ill-defined choroidal neovascularisation (CNV) with traditional fluorescein angiography (FA) compared with optical coherence tomographic angiography (OCTA). METHODS: A retrospective case series study of 11 eyes with ill-defined CNV on FA was performed. Eyes were scanned with commercially available spectral-domain optical coherence tomography (OCT) (70 000 A-scans/s). The split-spectrum amplitude-decorrelation angiography (SSADA) algorithm was used to distinguish blood flow from static tissue...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27911444/impact-of-optical-coherence-tomography-scanning-density-on-quantitative-analyses-in-neovascular-age-related-macular-degeneration
#3
S B Velaga, M G Nittala, R K Konduru, F Heussen, P A Keane, S R Sadda
PurposeTo assess the influence of varying B-scan frame-sampling densities on retinal thickness and volume measurements from spectral domain optical coherence tomography (OCT) in eyes with neovascular age-related macular degeneration (AMD).MethodsVolume OCT data (512 × 128 macular cube over 6 × 6 mm) were collected from 39 eyes with neovascular AMD. All 128 B-scans in each image set were manually segmented, allowing quantification of the neurosensory retina, subretinal fluid (SRF), subretinal hyperreflective material (SRHM), and pigment epithelium detachment (PED)...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27911420/-role-of-immunological-factors-in-the-development-of-myopic-choroidal-neovascularization
#4
A G Shchuko, N V Zaitseva, T N Yur'eva, E R Chernykh, I M Mikhalevich, A V Grigor'eva
AIM: To study the concentration of cytokines in the aqueous humor of the anterior chamber in patients with myopic choroidal neovascularization (mCNV) and to compare the results to their ophthalmic status. MATERIAL AND METHODS: A total of 19 patients (19 eyes) with mCNV treated with intravitreal ranibizumab were included in the study. The control group consisted of 15 patients (15 eyes) with myopia who had cataract surgery. Age, sex, and refractive error distribution were similar to that in the study group...
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27910906/analysis-of-the-serum-lipid-profile-in-polypoidal-choroidal-vasculopathy
#5
Miaoling Li, Xiongze Zhang, Nanying Liao, Baikang Ye, Yuting Peng, Yuying Ji, Feng Wen
Polypoidal choroidal vasculopathy (PCV), the predominant subtype of neovascular age-related macular degeneration in the Asian population, is associated with genetic polymorphism of lipid metabolism. In this study, we performed the untargeted lipidomics approach of ultra-performance liquid chromatography coupled with mass spectrometry (UPLC-MS) to reveal the potential discriminating lipid profile of PCV patients in serum (21 PCV patients and 19 age-matched controls). Unsupervised principal component, supervised orthogonal partial least squares analysis, correlation analysis, and heatmap analysis were performed with the data obtained by UPLC-MS...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27906070/subretinal-adipose-tissue-derived-mesenchymal-stem-cell-implantation-in-advanced-stage-retinitis-pigmentosa-a-phase-i-clinical-safety-study
#6
Ayse Oner, Z Burcin Gonen, Neslihan Sinim, Mustafa Cetin, Yusuf Ozkul
BACKGROUND: This prospective clinical case series aimed to investigate the safety of subretinal adipose tissue-derived mesenchymal stem cell (ADMSC) implantation in advanced stage retinitis pigmentosa (RP). METHODS: This study included 11 patients with end-stage RP who received subretinal implantation of ADMSCs. All patients had a total visual field defect and five of them only had light perception. The best corrected visual acuity (BCVA) in the study was 20/2000...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27905346/bevacizumab-in-choroidal-neovascularization-secondary-to-indian-tick-typhus-a-rare-case-report
#7
Raghavendra Ijeri, Gautam Beladiya, Sharad Bhomaj
Tick typhus causes hemorrhagic lesions over the skin. Retina also shows hemorrhages and exudates. Many cases have been reported in western literature about this condition. To our best of knowledge, this is the first case report of tick typhus in India which was also associated with inflammatory choroidal neovascularization.
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27905335/incidence-of-short-term-complications-and-associated-factors-after-primary-trabeculectomy-in-chiang-mai-university-hospital
#8
Thidarat Leeungurasatien, Preeyanuch Khunsongkiet, Kassara Pathanapitoon, Damrong Wiwatwongwana
BACKGROUND: To determine the incidence of early postoperative complications and associated factors after primary trabeculectomy in Thai glaucoma patients. DESIGN: This was a retrospective observational study performed in Chiang Mai University Hospital. PARTICIPANTS: One hundred and eighteen glaucoma patients participated in the study. METHODS: All glaucoma patients underwent primary trabeculectomy with mitomycin C (MMC) using fornix-based conjunctival flap technique between December 2011 and May 2013...
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898441/epidemiology-of-myopia
#9
Pei-Chang Wu, Hsiu-Mei Huang, Hun-Ju Yu, Po-Chiung Fang, Chueh-Tan Chen
Myopia is not a simple refractive error, but an eyesight-threatening disease. There is a high prevalence of myopia, 80% to 90%, in young adults in East Asia; myopia has become the leading cause of blindness in this area. As the myopic population increases globally, the severity of its impact is predicted. Approximately one fifth of the myopic population has high myopia (≥-6 diopters), which results in irreversible vision loss such as retinal detachment, choroidal neovascularization, cataracts, glaucoma, and macular atrophy...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27893108/choroidal-thickness-influences-near-infrared-reflectance-intensity-in-eyes-with-geographic-atrophy-due-to-age-related-macular-degeneration
#10
Rosa Dolz-Marco, Orly Gal-Or, K Bailey Freund
Purpose: To evaluate the effects of retinal and choroidal thickness on near-infrared reflectance (NIR) scanning laser ophthalmoscopy in eyes with geographic atrophy (GA) secondary to non-neovascular age-related macular degeneration (AMD). Methods: This was a cross-sectional review of the clinical records and multimodal imaging data of eyes diagnosed with GA secondary to non-neovascular AMD. Imaging modalities included color fundus photography, fundus autofluorescence, NIR, and structural spectral-domain optical coherence tomography (SD-OCT)...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27892746/choroidal-neovascularization-associated-with-multiple-evanescent-white-dot-syndrome-treated-with-intravitreal-ranibizumab
#11
Maurizio Battaglia Parodi, Pierluigi Iacono, Ilaria Zucchiatti, Francesco Bandello
PURPOSE: To describe the clinical outcomes of intravitreal ranibizumab treatment for subfoveal choroidal neovascularization (CNV) associated with multiple evanescent white dot syndrome (MEWDS). METHODS: This is a prospective, interventional, case series. All recruited patients underwent a baseline intravitreal ranibizumab injection and were monitored monthly over a 12-month follow-up, following a pro-re-nata regimen. RESULTS: Four patients (four eyes) were included in the study...
November 28, 2016: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27886184/a-view-of-the-current-and-future-role-of-optical-coherence-tomography-in-the-management-of-age-related-macular-degeneration
#12
REVIEW
U Schmidt-Erfurth, S Klimscha, S M Waldstein, H Bogunović
Optical coherence tomography (OCT) has become an established diagnostic technology in the clinical management of age-related macular degeneration (AMD). OCT is being used for primary diagnosis, evaluation of therapeutic efficacy, and long-term monitoring. Computer-based advances in image analysis provide complementary imaging tools such as OCT angiography, further novel automated analysis methods as well as feature detection and prediction of prognosis in disease and therapy by machine learning. In early AMD, pathognomonic features such as drusen, pseudodrusen, and abnormalities of the retinal pigment epithelium (RPE) can be imaged in a qualitative and quantitative way to identify early signs of disease activity and define the risk of progression...
November 25, 2016: Eye
https://www.readbyqxmd.com/read/27885338/effects-of-intravitreal-ranibizumab-injection-on-chinese-patients-with-wet-age-related-macular-degeneration-5-year-follow-up-results
#13
Yingyi Lu, Jianfeng Huang, Jing Zhao, Xiaobing Yu, Li Long, Hong Dai
Purpose. To observe the effect of intravitreal ranibizumab injection on wet age-related macular degeneration (wAMD) over 5 years in Chinese patients. Methods. Thirty-seven patients who were diagnosed with wAMD in our hospital from June 2007 to June 2014 were retrospectively reviewed. The PRN regimen and the treatment and extend regimen were applied. Best corrected visual acuity (BCVA), number of ranibizumab injections, and changes in the choroidal neovascularization (CNV) lesion over 5 years were analyzed. Results...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27880806/choroidal-round-hyporeflectivities-in-geographic-atrophy
#14
Eleonora Corbelli, Riccardo Sacconi, Luigi Antonio De Vitis, Adriano Carnevali, Alessandro Rabiolo, Lea Querques, Francesco Bandello, Giuseppe Querques
PURPOSE: In geographic atrophy (GA), choroidal vessels typically appear on structural optical coherence tomography (OCT) as hyperreflective round areas with highly reflective borders. We observed that some GA eyes show choroidal round hyporeflectivities with highly reflective borders beneath the atrophy, and futher investigated the charcteristcs by comparing structural OCT, indocyanine green angiography (ICGA) and OCT angiography (OCT-A). METHODS: Round hyporeflectivities were individuated from a pool of patients with GA secondary to non-neovascular age-related macular degeneration consecutively presenting between October 2015 and March 2016 at the Medical Retina & Imaging Unit of the University Vita-Salute San Raffaele...
2016: PloS One
https://www.readbyqxmd.com/read/27880741/optical-coherence-tomography-angiography-of-chorioretinal-lesions-due-to-idiopathic-multifocal-choroiditis
#15
Sarwar Zahid, Kevin C Chen, Jesse J Jung, Chandrakumar Balaratnasingam, Quraish Ghadiali, John Sorenson, Soraya Rofagha, K Bailey Freund, Lawrence A Yannuzzi
PURPOSE: To evaluate the spectrum of macular chorioretinal lesions occurring in idiopathic multifocal choroiditis using optical coherence tomography angiography (OCTA) to evaluate those showing neovascular flow. METHODS: This was a descriptive, retrospective study of 18 eyes of 14 patients with multifocal choroiditis. Macular lesions were characterized as subretinal pigment epithelium, subretinal, or mixed and evaluated during active and presumed inactive states of multifocal choroiditis...
October 31, 2016: Retina
https://www.readbyqxmd.com/read/27877088/aloe-emodin-suppresses-hypoxia-induced-retinal-angiogenesis-via-inhibition-of-hif-1%C3%AE-vegf-pathway
#16
Jianming Wu, Xiao Ke, Wei Wang, Hongcheng Zhang, Na Ma, Wei Fu, Manxi Zhao, Xiaoping Gao, Xiaofeng Hao, Zhirong Zhang
Background: Aloe-emodin (AE) has been reported to possess the antiangiogenic effect on laser induced choroidal neovascularization. AE inhibits the vessel formation in the zebrafish embryos. However, it is still unclear whether AE can alleviate neovascularization. Here, we investigated the inhibitory effect of AE on the hypoxia-induced retinal neovascularization and the possible mechanisms. Methods: We established a vascular endothelial growth factor (VEGF) secretion model under chemical induced hypoxia by exposure of 150 µM CoCl2 to the ARPE-19 cells, then treated the cells with different concentrations of AE (0...
2016: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/27876140/retinal-pigment-epithelium-cell-derived-exosomes-possible-relevance-to-cnv-in-wet-age-related-macular-degeneration
#17
Yao Tong, Ya-Li Zhou, Yi-Xiao Wang, Pei-Quan Zhao, Zhao-Yang Wang
Exosomes are small vesicles that are released by almost every cell type and play a crucial role in many physiological and pathological processes associated with different diseases. Specifically, they promote angiogenesis in the pathogenesis of some diseases. According to previous research, the proteins of exosomes taken from the aqueous humor (AH) of patients with wet-age related macular degeneration (AMD) may function as a new diagnostic biomarker of AMD, suggesting that exosomes may play an important role in the occurrence and development of choroidal neovascularization (CNV)...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27874278/placental-growth-factor-and-its-potential-role-in-diabetic-retinopathy-and-other-ocular-neovascular-diseases
#18
REVIEW
Quan Dong Nguyen, Sandro De Falco, Francine Behar-Cohen, Wai-Ching Lam, Xuri Li, Nadine Reichhart, Federico Ricci, Jennifer Pluim, William W Li
The role of vascular endothelial growth factor (VEGF), including in retinal vascular diseases, has been well studied, and pharmacological blockade of VEGF is the gold standard of treatment for neovascular age-related macular degeneration, retinal vein occlusion and diabetic macular oedema. Placental growth factor (PGF, previously known as PlGF), a homologue of VEGF, is a multifunctional peptide associated with angiogenesis-dependent pathologies in the eye and non-ocular conditions. Animal studies using genetic modification and pharmacological treatment have demonstrated a mechanistic role for PGF in pathological angiogenesis...
November 22, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27874077/lymphocytic-microparticles-modulate-angiogenic-properties-of-macrophages-in-laser-induced-choroidal-neovascularization
#19
Houda Tahiri, Samy Omri, Chun Yang, François Duhamel, Suzanne Samarani, Ali Ahmad, Mark Vezina, Martin Bussières, Elvire Vaucher, Przemyslaw Sapieha, Gilles Hickson, Karim Hammamji, Réjean Lapointe, Francis Rodier, Sophie Tremblay, Isabelle Royal, Jean-François Cailhier, Sylvain Chemtob, Pierre Hardy
Pathological choroidal neovascularization (CNV) is the common cause of vision loss in patients with age-related macular degeneration (AMD). Macrophages possess potential angiogenic function in CNV. We have demonstrated that human T lymphocyte-derived microparticles (LMPs) exert a potent antiangiogenic effect in several pathological neovascularization models. In this study, we investigated the alteration of proangiogenic properties of macrophages by LMPs treatment in vitro and in vivo models. LMPs regulated the expression of several angiogenesis-related factors in macrophages and consequently stimulated their antiangiogenic effects evidenced by the suppression of the proliferation of human retinal endothelial cells in co-culture experiments...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27870798/retinal-angiomatous-proliferation-diagnosis-a-multiimaging-approach
#20
Vittoria Ravera, Ferdinando Bottoni, Andrea Giani, Mario Cigada, Giovanni Staurenghi
PURPOSE: To identify signs occurring more frequently in retinal angiomatous proliferation (RAP) lesions compared with other types of choroidal neovascularization (CNV) in age-related macular degeneration. METHODS: In this cross-sectional retrospective study, 30 patients were evaluated. These signs were correlated with the type of CNV: shunting of blood flow to the lesion by fluorescein angiography, late leakage by indocyanine green angiography, intraretinal cysts and retinal pigmented epithelium interruption along the retinal pigmented epithelium detachment with a hyperreflective oval area by spectral domain optical coherence tomography, and presence of reticular pseudodrusen by infrared light...
December 2016: Retina
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