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Retinal angiography

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https://www.readbyqxmd.com/read/28334376/author-response-quantitative-retinal-optical-coherence-tomography-angiography-in-patients-with-diabetes-without-diabetic-retinopathy
#1
Galina Dimitrova, Etsuo Chihara, Hirokazu Takahashi, Hiroyuki Amano, Kazushiro Okazaki
No abstract text is available yet for this article.
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28334375/quantitative-retinal-optical-coherence-tomography-angiography-in-patients-with-diabetes-without-diabetic-retinopathy
#2
Fangyao Tang, Carol Y Cheung
No abstract text is available yet for this article.
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28333896/relationship-of-optic-nerve-structure-and-function-to-peripapillary-vessel-density-measurements-of-optical-coherence-tomography-angiography-in-glaucoma
#3
Harsha L Rao, Zia S Pradhan, Robert N Weinreb, Srilakshmi Dasari, Mohammed Riyazuddin, Sharanya Raveendran, Narendra K Puttaiah, Jayasree P Venugopal, Dhanaraj A S Rao, Sathi Devi, Kaweh Mansouri, Carroll A B Webers
PURPOSE: To evaluate the sectoral and global structure-structure (vessel density-retinal nerve fiber layer thickness) and structure-function (vessel density-visual sensitivity loss) relationships of peripapillary vessel density measurements on optical coherence tomography angiography in primary open-angle glaucoma and to determine if fractional polynomial (FP) models characterize the relationships better than linear models. MATERIALS AND METHODS: In a cross-sectional study, structure-structure and structure-function relationships of peripapillary vessel densities were determined in 227 eyes of 143 subjects (63 control and 164 primary open-angle glaucoma eyes) who had undergone standard automated perimetry and optical coherence tomography testing within 6 months of each other, using linear and FP models...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28333883/quantification-of-retinal-vessel-tortuosity-in-diabetic-retinopathy-using-optical-coherence-tomography-angiography
#4
Hyungwoo Lee, Minsub Lee, Hyewon Chung, Hyung Chan Kim
PURPOSE: To investigate the association of vessel tortuosity with severity of diabetic retinopathy (DR) using optical coherence tomography angiography. METHODS: We retrospectively analyzed 30 healthy eyes and 121 eyes of diabetic subjects with no DR, mild nonproliferative DR (NPDR), moderate to severe NPDR and proliferative DR (PDR). Binarized images were used to quantify the vessel tortuosity, vessel density, foveal avascular zone (FAZ) area, and FAZ acircularity...
March 22, 2017: Retina
https://www.readbyqxmd.com/read/28333878/one-year-results-of-half-versus-standard-dose-photodynamic-therapy-combined-with-ranibizumab-for-polypoidal-choroidal-vasculopathy
#5
Ian Y Wong, Xuan Shi, Rita Gangwani, Lawrence P Iu, Nicholas Fung, Qing Li, Alex L K Ng, Xiaoxin Li
PURPOSE: To explore the efficacy of half-dose verteporfin photodynamic therapy (hd-PDT) and standard-dose photodynamic therapy (sd-PDT), when combined with ranibizumab in the treatment of polypoidal choroidal vasculopathy. METHODS: Subjects were allocated to either the hd-PDT arm or the sd-PDT arm. All subjects received an injection of ranibizumab and PDT treatment (dosage according to allocation) at baseline. Subjects were followed up monthly for 12 months, and re-treatment were given at each visit if criteria were met...
March 22, 2017: Retina
https://www.readbyqxmd.com/read/28333856/extreme-diurnal-variation-of-central-macular-thickness-in-diabetic-macular-edema
#6
Kumar Sambhav, Sandeep Grover, Kakarla V Chalam
PURPOSE: Spectral domain optical coherence tomography is an established modality to quantify diabetic macular edema (DME). Change in central subfield thickness exceeding 3% to 6% in DME is likely to be significant. In this case of DME, we describe an extreme bilateral variation in central macular thickness on spectral domain optical coherence tomography over two consecutive days without any treatment. METHODS: The patient with DME and nonproliferative diabetic retinopathy underwent visual acuity testing, slit-lamp biomicroscopy, and dilated fundus examination...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28333854/presumed-retinal-pigment-epithelium-tumor-originating-from-unilateral-retinal-pigment-epithelium-dysgenesis
#7
Orly Gal-Or, Paul T Finger, Yale L Fisher, Lawrence A Yannuzzi, K Bailey Freund
PURPOSE: To describe a patient with a presumed retinal pigment epithelium (RPE) tumor originating from unilateral RPE dysgenesis. METHODS: Case report. RESULTS: A 30-year-old woman with an unremarkable medical and ocular history was referred for an evaluation of progressive central metamorphopsia in her left eye. Visual acuity was 20/20 in her right eye and 20/25 in her left eye. Funduscopic examination of the left eye revealed an elevated mass within an area of unilateral RPE dysgenesis showing hyperpigmentation and hypopigmentation with scalloped margins...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28333853/multimodal-imaging-in-vortex-vein-varices
#8
Chiara Veronese, Giovanni Staurenghi, Marco Pellegrini, Chiara Maiolo, Laura Primavera, Mariachiara Morara, Grayson W Armstrong, Antonio P Ciardella
PURPOSE: The aim of this study is to describe the clinical presentation of vortex vein varices with multimodal imaging. METHODS: The authors carried out a retrospective case series of eight patients (7 female, 1 male) with an average age of 60.2 years (min 8, max 84, median 68.5) presenting with vortex vein varices. All patients were evaluated at the Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy and at Luigi Sacco Hospital, University of Milan, Milan, Italy...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28331635/relationships-among-ocular-blood-flow-shown-by-laser-speckle-flowgraphy-retinal-arteriosclerotic-change-and-chorioretinal-circulation-time-obtained-by-fluorescein-angiography
#9
Hironori Osamura, Tomoaki Shiba, Takashi Itokawa, Tadashi Matsumoto, Yuichi Hori
Purpose. To determine the correlations among the mean blur rate (MBR) in the optic nerve head (ONH) shown by laser speckle flowgraphy (LSFG), retinal arteriosclerosis, and the circulation time obtained by fluorescein angiography (FA). Method. We evaluated 118 patients and assessed their time of choroidal flush, arm-to-retina time, and early and late phases of retinal circulation time (RT: sec) obtained by FA. The severity of retinal arteriosclerosis was classified according to the Scheie classification. The MBR values throughout the ONH (MBR-A), in the tissue (MBR-T), and in the vessels (MBR-V) were analyzed...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28328965/peripheral-blood-metabolic-and-inflammatory-factors-as-biomarkers-to-ocular-findings-in-diabetic-macular-edema
#10
Marc Figueras-Roca, Blanca Molins, Anna Sala-Puigdollers, Jessica Matas, Irene Vinagre, José Ríos, Alfredo Adán
AIMS: To study the association between peripheral blood metabolic and inflammatory factors and presence of diabetic macular edema (DME) and its related anatomic features in type 2 diabetic mellitus (T2DM) patients. MATERIAL AND METHODS: Observational cross-sectional study on a proof of concept basis. Seventy-six T2DM included patients were divided based on the presence (n = 58) or absence of DME (n = 18) according to optical coherence tomography (OCT). Ultra-widefield fluorescein angiography (UWFA) was performed in DME patients...
2017: PloS One
https://www.readbyqxmd.com/read/28322323/anti-inflammatory-properties-of-shikonin-contribute-to-improved-early-stage-diabetic-retinopathy
#11
Po-Lin Liao, Cheng-Hui Lin, Ching-Hao Li, Chi-Hao Tsai, Jau-Der Ho, George C Y Chiou, Jaw-Jou Kang, Yu-Wen Cheng
Diabetic retinopathy (DR), a major microvascular complication of diabetes, leads to retinal vascular leakage, neuronal dysfunction, and apoptosis within the retina. In this study, we combined STZ with whole-body hypoxia (10% O2) for quicker induction of early-stage retinopathy in C57BL/6 mice. We also compared the effects of a high glucose condition combined with hypoxia (1% O2) to a low glucose condition by using retinal pigment epithelial (RPE) cells, which are a crucial component of the outer blood-retinal barrier and the damage is related to retinopathy...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28320481/cystoid-macular-edema-associated-with-preservative-free-latanoprost-after-uncomplicated-cataract-surgery-case-report-and-review-of-the-literature
#12
Olga E Makri, Foteini N Tsapardoni, Panagiotis Plotas, Nikistratos Ifantis, Paraskevi T Xanthopoulou, Constantine D Georgakopoulos
BACKGROUND: Cystoid macular edema associated with latanoprost administration has been reported in patients after complicated cataract surgery with coexisting risk factors. We present the first case of preservative free latanoprost associated cystoid macular edema that occurred many months after uncomplicated cataract surgery. CASE PRESENTATION: A 65-year old Caucasian female presented in the Outpatients Clinic complaining of reduced vision and metamorphopsia in the right eye...
March 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28318637/impact-of-multiple-en-face-image-averaging-on-quantitative-assessment-from-optical-coherence-tomography-angiography-images
#13
Akihito Uji, Siva Balasubramanian, Jianqin Lei, Elmira Baghdasaryan, Mayss Al-Sheikh, SriniVas R Sadda
PURPOSE: To investigate the impact of multiple en face image averaging on quantitative measurements of the retinal microvasculature using optical coherence tomography angiography (OCTA). DESIGN: Prospective, observational, cross-sectional case series. PARTICIPANTS: Twenty-one healthy individuals with normal eyes. METHODS: Macular OCTA images were acquired from all participants using the Zeiss Cirrus 5000 with Angioplex OCTA software (Carl Zeiss Meditec, Dublin, CA)...
March 16, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28316838/retinal-vessel-density-in-optical-coherence-tomography-angiography-in-optic-atrophy-after-nonarteritic-anterior-ischemic-optic-neuropathy
#14
Chun-Hsiu Liu, Ling-Yuh Kao, Ming-Hui Sun, Wei-Chi Wu, Henry Shen-Lih Chen
Aims. To compare optical coherence tomography angiography (OCT-A) retinal vasculature measurements between normal and optic atrophy after nonarteritic anterior ischemic optic neuropathy (NAION) subjects. Design. This prospective observational study was conducted between July 2015 and August 2016 at the ophthalmology outpatient department of a referral center in Taiwan. Peripapillary (4.5 × 4.5 mm) and parafoveal (6 × 6 mm) OCT-A scans were acquired. Measurements of the peripapillary region were obtained in two areas: (1) circumpapillary vessel density (cpVD) and (2) whole enface image vessel density (wiVD)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28314954/retinal-and-choroidal-vascular-features-in-patients-with-retinitis-pigmentosa-imaged-by-oct-based-microangiography
#15
Kasra A Rezaei, Qinqin Zhang, Chieh-Li Chen, Jennifer Chao, Ruikang K Wang
PURPOSE: To image vascular features of retinitis pigmentosa (RP) using optical coherence tomography angiography (OCTA). METHODS: Patients with RP were imaged by spectral domain optical coherence tomography based angiography (OCTA). The optical microangiography (OMAG) algorithm was applied to scanned datasets to generate 3D OCTA retinal angiograms, i.e., OMAG angiograms. Motion tracking was used to minimize artifacts due to eye movement, and large field of view OMAG angiograms were achieved through a montage scanning protocol...
March 17, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28314832/features-of-the-choriocapillaris-in-myopic-maculopathy-identified-by-optical-coherence-tomography-angiography
#16
Kaori Sayanagi, Yasushi Ikuno, Sato Uematsu, Kohji Nishida
AIM: To describe the choriocapillaris features imaged by optical coherence tomography angiography (OCTA) in eyes with myopic maculopathy. METHODS: In this retrospective, non-invasive, observational case series, 26 eyes with myopic maculopathy and 12 age-matched healthy eyes underwent fluorescein angiography, indocyanine green angiography (ICGA) (highly myopic eyes only), OCT and OCTA, and the choriocapillaris features seen on OCTA and ICGA were compared. RESULTS: In all five (19%) eyes with patchy atrophy of the 26 highly myopic eyes, OCTA showed complete loss of the choriocapillaris and large choroidal vessels in the atrophic area...
March 17, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28303068/high-dose-intravenous-pulse-steroid-therapy-for-optic-disc-swelling-and-subretinal-fluid-in-non-arteritic-anterior-ischemic-optic-neuropathy
#17
Kei Takayama, Hiroki Kaneko, Shu Kachi, Eimei Ra, Yasuki Ito, Hiroko Terasaki
Non-arteritic anterior ischemic optic neuropathy (NAION) is a disease with microvascular abnormality that causes acute optic disc swelling (ODS) and, in severe cases, subretinal fluid (SRF) accumulation. ODS causes compartment syndrome and subsequent axonal degeneration and loss of retinal ganglion cells by apoptosis. No treatment modalities have been effective, although some cases improved after the intake of oral systemic steroids. We reported a case of a 72-year-old man who was referred due to a visual defect in the right eye...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28301863/optical-coherence-tomography-angiography-in-nonarteritic-anterior-ischemic-optic-neuropathy
#18
Emily Wright Mayes, Emily D Cole, Sabin Dang, Eduardo A Novais, Laurel Vuong, Carlos Mendoza-Santiesteban, Jay S Duker, Thomas R Hedges
BACKGROUND: Optical coherence tomography angiography (OCTA) has demonstrated good utility in qualitative analysis of retinal and choroidal vasculature and therefore may be relevant in the diagnostic and treatment efforts surrounding nonarteritic anterior ischemic optic neuropathy (NAION). METHODS: Retrospective, cross-sectional study of 10 eyes of 9 patients with a previous or new diagnosis of NAION that received imaging with OCTA between November 2015 and February 2016...
March 15, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28301857/structural-and-functional-characterization-of-benign-fleck-retina-using-multimodal-imaging
#19
Srividya Neriyanuri, Chetan Rao, Rajiv Raman
PURPOSE: To report structural and functional features in a case series of benign fleck retina using multimodal imaging. METHODS: Four cases with benign fleck retina underwent complete ophthalmic examination that included detailed history, visual acuity, and refractive error testing, FM-100 hue test, dilated fundus evaluation, full field electroretinogram, fundus photography with autofluorescence, fundus fluorescein angiography, and swept-source optical coherence tomography...
April 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28301651/quantification-of-retinal-microvascular-density-in-optical-coherence-tomographic-angiography-images-in-diabetic-retinopathy
#20
Mary K Durbin, Lin An, Nathan D Shemonski, Mário Soares, Torcato Santos, Marta Lopes, Catarina Neves, Jose Cunha-Vaz
Importance: Quantitative measurements based on optical coherence tomographic angiography (OCTA) may have value in managing diabetic retinopathy (DR), but there is limited information on the ability of OCTA to distinguish eyes with DR. Objective: To evaluate the ability of measurements of retinal microvasculature using OCTA to distinguish healthy eyes from eyes with DR. Design, Setting, and Participants: In this prospective cross-sectional study, OCTA was used to examine the eyes of participants with type 2 diabetes with or without DR and the eyes of participants without diabetes from September 17, 2015, to April 6, 2016...
March 16, 2017: JAMA Ophthalmology
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