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https://www.readbyqxmd.com/read/28821834/ocular-fundus-pulsations-within-the-posterior-rat-eye-chorioscleral-motion-and-response-to-elevated-intraocular-pressure
#1
Marco Augustin, Stanislava Fialová, Corinna Fischak, Leopold Schmetterer, Christoph K Hitzenberger, Bernhard Baumann
A multi-functional optical coherence tomography (OCT) approach is presented to determine ocular fundus pulsations as an axial displacement between the retina and the chorioscleral complex in the albino rat eye. By combining optical coherence elastography and OCT angiography (OCTA), we measure subtle deformations in the nanometer range within the eye and simultaneously map retinal and choroidal perfusion. The conventional OCT reflectivity contrast serves as a backbone to segment the retina and to define several slabs which are subsequently used for quantitative ocular pulsation measurements as well as for a qualitative exploration of the multi-functional OCT image data...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28820625/multimodal-image-analysis-of-the-retina-in-hunter-syndrome-mucopolysaccharidosis-type-ii-case-report
#2
Isadora Darriba Macedo Salvucci, Simone Finzi, Maria Kiyoko Oyamada, Chong Ae Kim, Sérgio Luis Gianotti Pimentel
INTRODUCTION: We report a case of retinal and posterior ocular findings in a 33-year-old man diagnosed with Hunter syndrome (Mucopolysaccharidosis type II) in a multimodal imaging way. CASE PRESENTATION: Our patient was complaining of blurred night vision for the past 3 years. He had not received any systemic treatment for Hunter syndrome. Vision acuity was 20/20 in both eyes and corneas were clear. Fundus examination revealed bilateral crowded and hyperemic optic nerve heads (elevated in the ocular ultrasound) and areas of subretinal hypopigmentation...
August 18, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28820225/bilateral-thalamic-edema-from-coexisting-choroid-plexus-arteriovenous-malformation-and-sinus-thrombosis-case-report
#3
Ryan B Kochanski, Andrew K Johnson, Roham Moftakhar
Bilateral thalamic dysfunction secondary to venous congestion may result from either venous sinus thrombosis or high flow arteriovenous malformations or a combination of both. We present a case of bilateral thalamic edema resulting from concomitant choroid plexus arteriovenous malformation (AVM) and straight sinus thrombosis and describe our treatment approach. The patient presented with several weeks of progressive confusion and memory deficits. Magnetic resonance imaging and venography (MRI/ MRV) showed bilateral thalamic T2 hyperintensities and straight sinus thrombosis...
2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28820184/age-related-macular-degeneration-and-mortality-the-melbourne-collaborative-cohort-study
#4
M B McGuinness, R P Finger, A Karahalios, R H Guymer, D R English, E W Chong, A M Hodge, L D Robman, G G Giles, J A Simpson
AimsTo assess associations between features of age-related macular degeneration (AMD) and mortality.MethodsA total of 21 129 participants from the Melbourne Collaborative Cohort Study aged 47-85 years (60% female) were assessed for AMD (2003-2007). Mortality data to December 31, 2012 were obtained through linkage with the National Death Index. Associations were assessed using Cox regression, adjusting for age, sex, smoking, region of birth, education, physical activity, diet and alcohol.ResultsLate AMD was identified in 122 (0...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820170/paradoxical-worsening-of-a-case-of-tb-subretinal-abscess-with-serpiginous-like-choroiditis-following-the-initiation-of-antitubercular-therapy
#5
Sudha K Ganesh, B Sowkath Ali
A 37-year-old immunocompetent male patient presented with the blurring of vision, both eyes for the past1 year. Fundus examination revealed bilateral multiple subretinal abscesses with areas of healed serpiginous-like choroiditis. Laboratory investigations showed positive tuberculin skin test, positive QuantiFERON TB-Gold Test, and high resolution computed tomography chest showed enlarged mediastinal lymph nodes. The aqueous sample revealed polymerase chain reaction (PCR) positive for Mycobacterium tuberculosis (MTB) (MPB64 genome)...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28820169/aflibercept-for-recurrent-or-recalcitrant-polypoidal-choroidal-vasculopathy-in-indian-eyes-early-experience
#6
Aditya Bansal, Muna Bhende, Tarun Sharma, Pramod Bhende, Suchetana Mukherjee
Treatment guidelines for symptomatic polypoidal choroidal vasculopathy (PCV) have been described, but the management of recurrent or recalcitrant PCV is a challenge. The newer anti-vascular endothelial growth factor: aflibercept has shown promise in the treatment of both treatment naive and recalcitrant PCV in studies outside India. We present the minimum 6 months results of intravitreal aflibercept in recurrent and recalcitrant PCV in Indian eyes after multiple injections of bevacizumab/ranibizumab with or without photodynamic therapy...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28820168/therapeutic-surprise-photodynamic-therapy-for-cavernous-haemangioma-of-the-disc
#7
Mahesh P Shanmugam, Rajesh Ramanjulu, Shyamal Dwivedi, Aditya Barigali, Ajith Havanje
PURPOSE: To report the response of cavernous haemangioma of the disc to PDT. METHODS AND PATIENTS: A 32 years old lady presented to us with complaints of sudden onset of blurry vision in her right eye. What seemed initially as polypoidal choroidal vasculopathy turned out as cavernous haemangioma of the disc after pneumatic displacement of the sub-retinal haeme. She was treated with PDT as she was prone to recurrent haemorrhage from the lesion due to her low platelet count...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28820167/swept-source-optical-coherence-tomography-angiography-of-choroid-in-choroidal-hemangioma-before-and-after-laser-photocoagulation
#8
Rohan Chawla, Koushik Tripathy, Anu Sharma, Rajpal Vohra
Swept source optical coherence tomography-angiography (OCT-angiography) gives us a unique opportunity to study the vasculature of choroidal lesions in vivo. We describe the OCT angiographic characteristics of circumscribed choroidal hemangioma before and after laser photocoagulation. Medium-sized choroidal vessels/vessels on the tumor surface become predominantly visible after laser photocoagulation due to laser-induced damage to the overlying choriocapillaris. OCT-angiography adds a new dimension to in vivo analysis of vascular changes in choroid due to choroidal tumors and their response to therapy...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28820157/incidence-outcomes-and-risk-factors-for-hemorrhagic-complications-in-eyes-with-polypoidal-choroidal-vasculopathy-following-photodynamic-therapy-in-indian-subjects
#9
Pukhraj Rishi, Ekta Rishi, Minal Sharma, Aditya Maitray, Muna Bhende, Lingam Gopal, Tarun Sharma, Dhanashree Ratra, Parveen Sen, Pramod Bhende, Chetan Rao, Pradeep Susvar
PURPOSE: To evaluate the incidence, outcomes, and risk factors for hemorrhagic complications in eyes with polypoidal choroidal vasculopathy (PCV) following photodynamic therapy (PDT). METHODS: Medical records of 94 eyes of 86 consecutive patients with PCV who underwent PDT between January 2007 and December 2014 were retrospectively reviewed. The diagnosis of PCV was based on clinical features and indocyanine green angiography. Eyes were treated with PDT monotherapy or a combination of PDT plus anti-vascular endothelial growth factor...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28819823/inner-nuclear-layer-cystoid-spaces-are-a-poor-prognostic-factor-in-typical-age-related-macular-degeneration-and-polypoidal-choroidal-vasculopathy
#10
Eui Chun Kang, Seonghee Choi, Hyoung Jun Koh
PURPOSE: To investigate predictive factors for changes in best-corrected visual acuity (BCVA) at 24 months after intravitreal ranibizumab (IVR) for neovascular age-related macular degeneration (nAMD). METHODS: This retrospective study included 55 eyes of 55 consecutive patients (32 men and 23 women) with nAMD who received three consecutive monthly IVR injections and were re-treated as needed over a 24-month period. We used the mean changes in logarithm of the minimal angle of resolution (logMAR) BCVA at 24 months as the dependent variable in regression analysis...
August 17, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28817420/optical-coherence-tomography-angiography-for-the-detection-of-secondary-choroidal-neovascularization-in-vitelliform-macular-dystrophy
#11
Martin Stattin, Daniel Ahmed, Carl Glittenberg, Ilse Krebs, Siamak Ansari-Shahrezaei
PURPOSE: Optical coherence tomography angiography (OCTA) is used to assess vascular abnormality in advanced stage vitelliform macular dystrophy (VMD2). METHODS: Multimodal imaging including spectral domain (SD) OCT, autofluorescence (AF), fluorescein (FA) and indocyanine green angiography (ICGA) as well as optical coherence tomography angiography were performed. PATIENTS: Two eyes in one young patient with diagnosed vitelliform macular dystrophy were investigated for progressive visual dysfunction...
August 16, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28817389/congenital-anomalies-of-the-optic-disc-insights-from-optical-coherence-tomography-imaging
#12
Karen W Jeng-Miller, Dean M Cestari, Eric D Gaier
PURPOSE OF REVIEW: Congenital anomalies of the optic nerve are rare but significant causes of visual dysfunction in children and adults. Accurate diagnosis is dependent on a thorough funduscopic examination, but can be enhanced by imaging information garnered from optical coherence tomography (OCT). We review common congenital optic nerve anomalies, including optic disc pit, optic nerve coloboma, morning glory disc anomaly, and hypoplasia of the optic nerve, review their systemic associations, and discuss insights from OCT imaging...
August 16, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28817343/suppression-of-choroidal-neovascularization-in-mice-by-subretinal-delivery-of-multigenic-lentiviral-vectors-encoding-anti-angiogenic-micrornas
#13
Anne Louise Askou, Josephine Natalia Esther Benckendorff, Andreas Holmgaard, Tina Storm, Lars Aagaard, Toke Bek, Jacob Giehm Mikkelsen, Thomas Juhl Corydon
Lentivirus-based vectors have been used for the development of potent gene therapies. Here, application of a multigenic lentiviral vector (LV) producing multiple anti-angiogenic microRNAs following subretinal delivery in a laser-induced choroidal neovascularization (CNV) mouse model is presented. This versatile LV, carrying back-to-back RNApolII-driven expression cassettes, enables combined expression of microRNAs targeting vascular endothelial growth factor A (Vegfa) mRNA and fluorescent reporters. In addition, by including a vitelliform macular dystrophy 2 (VMD2) promoter, expression of microRNAs is restricted to the retinal pigment epithelial (RPE) cells...
August 2017: Human Gene Therapy Methods
https://www.readbyqxmd.com/read/28816730/intravitreal-injection-of-aflibercept-in-patients-with-polypoidal-choroidal-vasculopathy-a-3-year-follow-up
#14
Maiko Maruyama-Inoue, Shimpei Sato, Shin Yamane, Kazuaki Kadonosono
PURPOSE: To compare the 3-year follow-up results of intravitreal injections of aflibercept between fixed dosing (FD) regimen and a pro re nata (PRN) regimen after three initial monthly doses for the treatment of polypoidal choroidal vasculopathy and to analyze factors influencing improvement in visual acuity. METHODS: We retrospectively studied all treatment-naive patients with polypoidal choroidal vasculopathy who were scheduled to receive intravitreal aflibercept injections FD or PRN after induction treatment between March 2013 and May 2014...
August 14, 2017: Retina
https://www.readbyqxmd.com/read/28815663/who-2016-classification-of-gliomas
#15
Pieter Wesseling, David Capper
Gliomas are the most frequent intrinsic tumours of the central nervous system and encompass two principle subgroups: diffuse gliomas and gliomas showing a more circumscribed growth pattern ('non-diffuse gliomas'). In the revised 4th edition of the WHO Classification of CNS tumors published in 2016, classification of especially diffuse gliomas has fundamentally changed: for the first time a large subset of these tumours is now defined based on presence/absence of IDH mutation and 1p/19q codeletion. Following this approach, the diagnosis of (anaplastic) oligoastrocytoma can be expected to largely disappear...
August 16, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28814750/the-linear-artifact-in-enhanced-depth-imaging-spectral-domain-optical-coherence-tomography
#16
Chengguo Zuo, Lan Mi, Shasha Yang, Xinxing Guo, Hui Xiao, Xing Liu
Optical coherence tomography (OCT) is a valuable ancillary test in the diagnosis and management of chorioretinal disease. The evaluation of choroid thickness using OCT has become the focus of clinical applications. We report a linear artifact that acts as a confounding factor in choroidal thickness measurements by enhanced depth imaging OCT. We found that the linear artifact is located stably at a depth of 485 μm beneath the retinal pigment epithelium in 81.88% of subjects. The study suggested that the linear artifact was a confounding factor in assessing choroidal thickness and that caution should be used in the interpretation of the choroidal thickness, especially when it is approximately 485 μm...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814417/intravitreal-bevacizumab-monotherapy-in-myopic-choroidal-neovascularisation-5-year-outcomes-for-the-pan-american-collaborative-retina-study-group
#17
Jay Chhablani, Remya Mareen Paulose, Andres F Lasave, Lihteh Wu, Cristian Carpentier, Mauricio Maia, Silvio Lujan, Sergio Rojas, Martin Serrano, Maria H Berrocal, J Fernando Arevalo
PURPOSE: To report the long-term anatomical and visual outcomes of intravitreal bevacizumab (IVB) monotherapy in naive choroidal neovascularisation (CNV) caused by myopia. METHODS: Retrospective analysis of naive CNV secondary to myopia that underwent antivascular endothelial growth factor monotherapy was performed. Collected data included demographic details, clinical examination details including visual acuity at presentation and follow-up with imaging and treatment details...
August 16, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28813619/age-related-changes-in-the-chorioretinal-junction-an-immunohistochemical-study
#18
Tulika Gupta, Narbada Saini, Jasbir Arora, Daisy Sahni
The chorioretinal junction comprises the retinal pigment epithelium, Bruch's membrane (BM), and adjacent choroidal capillaries. Its significance lies in its ability to support the retina mechanically and metabolically. The aim of this cross-sectional study was to record the senescent changes affecting all the constituents of the chorioretinal junction in 40 histological specimens across the whole spectrum of the adult age range. This study included light microscopy, with hematoxylin and eosin and PAS stains, and fluorescent microscopy...
August 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28813577/spatial-correspondence-between-intraretinal-fluid-subretinal-fluid-and-pigment-epithelial-detachment-in-neovascular-age-related-macular-degeneration
#19
Sophie Klimscha, Sebastian M Waldstein, Thomas Schlegl, Hrvoje Bogunovic, Amir Sadeghipour, Ana-Maria Philip, Dominika Podkowinski, Eleonore Pablik, Li Zhang, Michael D Abramoff, Milan Sonka, Bianca S Gerendas, Ursula Schmidt-Erfurth
Purpose: To identify the spatial distribution of exudative features of choroidal neovascularization in neovascular age-related macular degeneration (nAMD) based on the localization of intraretinal cystoid fluid (IRC), subretinal fluid (SRF), and pigment-epithelial detachment (PED). Methods: This retrospective cross-sectional study included spectral-domain optical coherence tomography volume scans (6 × 6 mm) of 1341 patients with treatment-naïve nAMD. IRC, SRF, and PED were detected on a per-voxel basis using fully automated segmentation algorithms...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28810043/amalric-triangular-syndrome-associated-with-outer-nuclear-layer-infarction
#20
Sean T Garrity, Eric J Holz, David Sarraf
An 85-year-old man presented with temporal headache and bilateral paracentral scotomas. Clinical examination, laboratory testing, and temporal artery biopsy confirmed the diagnosis of giant cell arteritis. Fluorescein angiography illustrated Amalric triangular choroidal infarction of the left eye. Spectral-domain optical coherence tomography of the left eye demonstrated outer nuclear layer abnormalities adjacent to the choroidal infarct. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:668-670.].
August 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
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