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https://www.readbyqxmd.com/read/28437524/the-evolution-of-the-plateau-an-optical-coherence-tomography-signature-seen-in-geographic-atrophy
#1
Anna C S Tan, Polina Astroz, Kunal K Dansingani, Jason S Slakter, Lawrence A Yannuzzi, Christine A Curcio, K Bailey Freund
Purpose: Histologic details of progression routes to geographic atrophy (GA) in AMD are becoming available through optical coherence tomography (OCT). We studied the origins and evolution of an OCT signature called plateau in eyes with GA and suggested a histologic correlate. Methods: Serial eye-tracked OCT scans and multimodal imaging were acquired from eight eyes of seven patients with GA and plateau signatures over a mean follow-up of 7.7 years (range, 3.7-11...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28436839/automatic-subretinal-fluid-segmentation-of-retinal-sd-oct-images-with-neurosensory-retinal-detachment-guided-by-enface-fundus-imaging
#2
Menglin Wu, Qiang Chen, Xiaojun He, Ping Li, Wen Fan, Songtao Yuan, Hyunjin Park
OBJECTIVE: Accurate segmentation of neurosensory retinal detachment (NRD)-associated subretinal fluid in spectral domain optical coherence tomography (SD-OCT) is vital for the assessment of central serous chorioretinopathy (CSC). A novel two-stage segmentation algorithm was proposed, guided by Enface fundus imaging. METHODS: In the first stage, Enface fundus image was segmented using thickness map prior to detecting the fluid-associated abnormalities with diffuse boundaries...
April 18, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28435935/proliferative-vitreoretinopathy-in-treated-retinoblastoma
#3
Cindy S Hwang, Pia R Mendoza, Jill R Wells, Hans E Grossniklaus, G Baker Hubbard
OBJECTIVE: To evaluate the clinical and histopathologic characteristics of patients who develop proliferative vitreoretinopathy after retinoblastoma treatment. DESIGN: Retrospective review of three cases of proliferative vitreoretinopathy (PVR) that developed after successful treatment of retinoblastoma from 2003 to 2015. SUBJECTS: Three patients with treated retinoblastoma who developed severe PVR and required enucleation. METHODS: Review of clinical charts, fundus drawings, Ret-Cam 3 images, and histopathology specimens...
March 2017: Ophthalmol Retina
https://www.readbyqxmd.com/read/28435237/evaluation-of-ex-press-glaucoma-implant-in-elderly-diabetic-patients-after-23g-vitrectomy
#4
Anita Lyssek-Boroń, Adam Wylęgała, Dariusz Dobrowolski, Ewelina Kowalczyk, Katarzyna Polanowska, Edward Wylęgała
PURPOSE: The most frequent qualifications for pars plana vitrectomy (PPV) in diabetic patients include recurrent hemorrhage into the vitreous body chamber and vitreoretinal proliferation, also with traction retinal detachment. The aim of this study was to evaluate the effectiveness of EX-PRESS implant for the treatment of secondary glaucoma in elderly diabetic patients following PPV 23G with silicon oil or SF6 gas endotamponade. MATERIALS AND METHODS: This retrospective analysis comprised 18 patients (19 eyes)...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28435054/experience-with-a-subretinal-cell-based-therapy-in-patients-with-geographic-atrophy-secondary-to-age-related-macular-degeneration
#5
Allen C Ho, Tom S Chang, Michael Samuel, Paul Williamson, Robert F Willenbucher, Terri Malone
PURPOSE: To evaluate the safety and tolerability of and clinical response to a single, subretinal dose of human umbilical tissue-derived cells (palucorcel [CNTO-2476]) in the eyes of adults aged ≥50 years with bilateral geographic atrophy (GA) secondary to age-related macular degeneration (AMD). DESIGN: Phase 1/2a, multicenter, open-label, dose-escalation, fellow-eye-controlled study. METHODS: In the phase 1 portion, eyes were assigned to receive a single, subretinal dose of palucorcel (ranging from 6...
April 20, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28434069/herpes-zoster-keratitis-development-after-acute-retinal-necrosis
#6
Waseem H Ansari, Francesco Pichi, Paula E Pecen, Careen Y Lowder, Sunil K Srivistava
PURPOSE: To report a case of herpes zoster keratitis in a patient undergoing treatment for herpetic acute retinal necrosis. METHODS: Case report. RESULTS: A 71 year old male presented with acute retinal necrosis of the left eye due to herpes zoster and was treated with intravitreal foscarnet and oral valcyclovir. He developed a retinal detachment and underwent surgical repair. After four weeks, he developed an ipsilateral herpetic zoster keratitis demonstrated by Rose-Bengal staining that was responsive to topical ganciclovir gel...
April 22, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28433130/epimacular-membrane-detachment-following-intravitreal-bevacizumab-for-retinal-vasoproliferative-tumor
#7
Kuan-Jen Chen, Nan-Kai Wang, An-Ning Chao
No abstract text is available yet for this article.
May 2017: Ophthalmology
https://www.readbyqxmd.com/read/28432165/intravitreal-cysticercosis-with-full-thickness-macular-hole-management-outcome-and-intraoperative-optical-coherence-tomography-features
#8
Karthikeya R, Raghav Dinesh Ravani, Prateek Kakkar, Atul Kumar
Ocular cysticercosis is a serious condition with a potential for complete vision loss if left untreated. Intravitreal cysticercosis is the most common ocular form of cysticercosis and is associated with retinal detachment, retinal traction, subretinal scarring and vitritis. To the best of our knowledge, there is no report of the occurrence of a live intravitreal cysticercosis with a full thickness macular hole (FTMH) in the literature. We here report a case of live intravitreal cysticercosis with a FTMH along with its management and intraoperative optical coherence tomography features of the live cysticercus...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28428970/changes-in-anterior-segment-parameters-following-pars-plana-vitrectomy-measured-by-ultrasound-biomicroscopy-ubm
#9
Zahra Ghomi, Fariba Ghassemi
Despite being a posterior segment ocular surgery, pars plana vitrectomy (PPV) may also affect anterior segment parameters. We aimed to investigate anterior segment alterations following PPV using ultrasound biomicroscopy (UBM) to visualize the structural anatomy of the eye. In this study, we enrolled phakic patients undergoing PPV (as the sole procedure). The anterior chamber depth, crystalline lens anterior-posterior (AP) diameter, anterior chamber angle, ciliary body dimensions, and integrity of the ciliary zonules and posterior capsule were assessed using UBM before and at least 3 months after PPV...
2017: Medical Hypothesis, Discovery and Innovation in Ophthalmology
https://www.readbyqxmd.com/read/28427081/choroidal-thickness-and-microperimetry-sensitivity-in-age-related-macular-degeneration
#10
Geoffrey K Broadhead, Thomas Hong, Peter McCluskey, John R Grigg, Timothy E Schlub, Andrew A Chang
PURPOSE: To assess choroidal thickness (CT) and its relationship to retinal sensitivity in mild/moderate age-related macular degeneration (AMD). METHODS: Seventy-two eyes of 51 participants with mild/moderate AMD and 36 eyes of 18 age-matched normal participants were prospectively recruited to undergo enhanced-depth imaging optical coherence tomography (EDI-OCT) imaging and microperimetry (MP) functional assessment. OCT-measured CT and retinal thickness (RT) were matched with MP sensitivity at 13 retinal loci, and correlations were analysed...
April 21, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28427073/surgical-management-and-techniques
#11
Marco Codenotti, Lorenzo Iuliano, Gisella Maestranzi
Technical advancements have substantially extended the indications for surgery in diabetic retinopathy (DR) during the last 40 years, from the traditional indications including non-clearing vitreous hemorrhage, traction retinal detachment (RD), and traction-rhegmatogenous RD, to epiretinal membrane (ERM), vitreomacular traction, diffuse macular edema, neovascular glaucoma, and anterior hyaloid fibrovascular proliferation. The goals of vitreoretinal surgery in DR are multiple: clearing media opacities, release of traction (anteroposterior and/or tangential), segmentation and/or removal of traction bands, peeling of ERMs, hemostasis, laser photocoagulation, and tamponade of retinal breaks with gas or silicone oil...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28427062/emerging-issues-for-optical-coherence-tomography
#12
Luisa Pierro, Alessandro Rabiolo
Almost 25 years after its introduction, optical coherence tomography (OCT) is still a crucial test in the evaluation of patients affected by diabetic retinopathy. In this chapter, the authors provide an extensive overview of the posterior segment pathological changes induced by diabetes, characterized using OCT. OCT plays a key role in diabetic macular edema (DME) as it assesses related retinal changes both in a qualitative (i.e., DME pattern, presence and aspects of cysts, fluid localization, integrity, and reflectivity of retinal layers) and quantitative (i...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28426628/ocular-hypertension-and-glaucoma-following-vitrectomy-a-systematic-review
#13
Alba Miele, Andrea Govetto, Carlo Fumagalli, Simone Donati, Ilaria Biagini, Claudio Azzolini, Stanislao Rizzo, Gianni Virgili
PURPOSE: Pars plana vitrectomy has been reported to increase the risk of ocular hypertension and open-angle glaucoma. The authors conducted a systematic review of randomized and nonrandomized studies to compare the incidence of open-angle glaucoma and ocular hypertension in vitrectomized versus nonvitrectomized eyes. METHODS: A literature search was performed using MEDLINE and EMBASE until August 2016. Data on ocular hypertension and open-angle glaucoma incidence and mean intraocular pressure after at least 1 year were pooled using random-effects metaanalysis models...
April 19, 2017: Retina
https://www.readbyqxmd.com/read/28426623/intravitreal-dexamethasone-implantation-in-patients-with-different-morphological-diabetic-macular-edema-having-insufficient-response-to-ranibizumab
#14
Havva Kaldırım, Serpil Yazgan, Kursat Atalay, Ceren Gurez, Fatma Savur
PURPOSE: To evaluate the effectiveness of a single intravitreal injection of dexamethasone implant in resistant diabetic macular edema that have different morphological types. METHODS: In this retrospective study, 31 patients (35 eyes) with persistent diabetic macular edema, who underwent a single injection of dexamethasone implant, were evaluated. Diabetic macular edema was classified into three types: diffuse retinal thickening (n = 10), cystoid macular edema (n = 13), and serous retinal detachment (n = 12)...
April 19, 2017: Retina
https://www.readbyqxmd.com/read/28425969/the-pharmacological-effects-of-lutein-and-zeaxanthin-on-visual-disorders-and-cognition-diseases
#15
REVIEW
Yu-Ping Jia, Lei Sun, He-Shui Yu, Li-Peng Liang, Wei Li, Hui Ding, Xin-Bo Song, Li-Juan Zhang
Lutein (L) and zeaxanthin (Z) are dietary carotenoids derived from dark green leafy vegetables, orange and yellow fruits that form the macular pigment of the human eyes. It was hypothesized that they protect against visual disorders and cognition diseases, such as age-related macular degeneration (AMD), age-related cataract (ARC), cognition diseases, ischemic/hypoxia induced retinopathy, light damage of the retina, retinitis pigmentosa, retinal detachment, uveitis and diabetic retinopathy. The mechanism by which they are involved in the prevention of eye diseases may be due their physical blue light filtration properties and local antioxidant activity...
April 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28419996/polydimethyl-siloxane-as-an-internal-tamponade-for-vitreoretinal-surgery
#16
Rumana N Hussain, Jayavani Myneni, Theodor Stappler, David Wong
PURPOSE: To report the efficacy and safety of polydimethyl siloxane (Siluron Xtra®) as an internal tamponade. DESIGN: Audit and adverse event screening of procedures (March 2014-2015). METHODS: Patients who had undergone vitreoretinal procedures with Siluron Xtra® tamponade were retrospectively analysed with respect to anatomical outcome, visual outcomes, and perioperative complications, in particular intraocular pressure. INCLUSION CRITERIA: all patients who had undergone Siluron Xtra® tamponade...
April 19, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28419404/use-of-evicel-fibrin-sealant-in-optic-disc-pit-associated-macular-detachment
#17
Paulo Ricardo Chaves de Oliveira, Alan Richard Berger, David Robert Chow
Optic disc pit is a rare congenital anomaly of the optic nerve. Retinal detachment is a common complication with poor outcomes. Many surgical alternatives have been described for the treatment of this condition, producing variable results. Herein, the authors describe four cases of optic disc pit-associated macular detachment managed with pars plana vitrectomy, fluid-air exchange, drainage of subretinal fluid through the optic disc pit, temporal peripapillary laser, and application of Evicel fibrin sealant (human) (Ethicon, Bridgewater, NJ) over the optic disc head...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28419398/pre-existing-rpe-atrophy-and-defects-in-the-external-limiting-membrane-predict-early-poor-visual-response-to-ranibizumab-in-neovascular-age-related-macular-degeneration
#18
Souska Zandi, Florian Weisskopf, Justus G Garweg, Isabel B Pfister, Christian Pruente, Florian Sutter, Katja Hatz
BACKGROUND AND OBJECTIVES: The aim of this study was to identify the rate of early visual acuity poor responders in patients with neovascular age-related macular degeneration (AMD) after the first intravitreal injection of ranibizumab (Lucentis; Genentech, South San Francisco, CA) and to determine potential predictors for early response. PATIENTS AND METHODS: Patients with choroidal neovascularization secondary to AMD were evaluated before and 1 month after their first ranibizumab treatment...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28419395/choriocapillaris-changes-imaged-by-oct-angiography-after-half-dose-photodynamic-therapy-for-chronic-central-serous-chorioretinopathy
#19
Kyoko Fujita, Akiyuki Kawamura, Mitsuko Yuzawa
BACKGROUND AND OBJECTIVE: To evaluate the choriocapillaris using optical coherence tomographic angiography (OCTA) after half-dose verteporfin photodynamic therapy (hd-PDT) for chronic central serous chorioretinopathy (CSC). PATIENTS AND METHODS: We studied six eyes (six patients) with chronic CSC treated by hd-PDT. OCTA was performed before, 1 week after, and 1 month after hd-PDT. The area of flow abnormality at the choriocapillaris level within the PDT spot after hd-PDT was compared with that before hd-PDT...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28416755/efficacy-and-safety-of-braf-inhibition-alone-versus-combined-braf-and-mek-inhibition-in-melanoma-a-meta-analysis-of-randomized-controlled-trials
#20
REVIEW
Mengdong Liu, Xuekang Yang, Jiaqi Liu, Bin Zhao, Weixia Cai, Yan Li, Dahai Hu
Recent clinical studies have shown that combination therapy of BRAF and MEK inhibition provides more survival benefit than BRAF inhibition monotherapy. However, the adverse events due to BRAF and MEK inhibitors impact the physical comfort and social life of patients. Thus, in this study we have undertaken a meta-analysis of randomized controlled trials to compare the efficacy and adverse events risk between monotherapy and combination therapy. We identified the relevant studies by searching PubMed, EMBASE and Google scholar databases, between the year January 2000 and May 2016...
February 23, 2017: Oncotarget
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