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https://www.readbyqxmd.com/read/28419396/correlation-between-mesopic-retinal-sensitivity-and-optical-coherence-tomographic-metrics-of-the-outer-retina-in-patients-with-non-atrophic-dry-age-related-macular-degeneration
#1
Tudor C Tepelus, Amir H Hariri, Mayss Al-Sheikh, SriniVas R Sadda
BACKGROUND AND OBJECTIVE: To determine the correlation between mesopic retinal sensitivity and optical coherence tomographic metrics of the outer retina in patients with intermediate age-related macular degeneration (AMD). PATIENTS AND METHODS: Participants with nonatrophic dry AMD underwent mesopic MP-3 microperimetry (Nidek, Padova, Italy) and both Nidek and Cirrus (Carl Zeiss Meditec, Dublin, CA) spectral-domain optical coherence tomography (SD-OCT). The volume of the outer retinal layers was measured on the Nidek SD-OCT scans using the automatic segmentation algorithm of Navis-EX software...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28418494/prevalence-natural-course-and-prognostic-role-of-refractile-drusen-in-age-related-macular-degeneration
#2
Akio Oishi, Sarah Thiele, Jennifer Nadal, Maho Oishi, Monika Fleckenstein, Matthias Schmid, Frank G Holz, Steffen Schmitz-Valckenberg
Purpose: To report prevalence, clinical characteristics, and prognostic significance of refractile drusen in eyes with intermediate age-related macular degeneration (AMD). Methods: Presence of refractile drusen by color fundus photography (CFP), corresponding findings by multimodal imaging, and longitudinal changes with annual examinations for up to 4 years were analyzed within a prospective natural history study of 98 eyes with non-late AMD of 98 patients (Age-Related Eye Disease Study [AREDS] stages 3 and 4)...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28404619/bilateral-optic-disc-drusen-mimicking-papilloedema
#3
EDITORIAL
Eleftherios I Agorogiannis, Jonathan M Durnian
No abstract text is available yet for this article.
April 12, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28399268/vitreomacular-adhesion-and-its-association-with-age-related-macular-degeneration-in-a-population-based-setting-the-alienor-study
#4
Sarra Gattoussi, Audrey Cougnard-Grégoire, Marie-Noëlle Delyfer, Marie-Bénédicte Rougier, Cédric Schweitzer, Cécile Delcourt, Jean-François Korobelnik
Purpose: The purpose of this study was to describe vitreomacular adhesion (VMA), diagnosed with spectral-domain optical coherence tomography (SD-OCT), its risk factors, and its association with AMD in a population-based study of French elderly subjects. Methods: Six hundred twenty-two of 624 (99.7%) participants of the Alienor study (Bordeaux, France), ≥75 years of age, had gradable SD-OCT scans of the macula in at least one eye. VMA was defined as visible perifoveal vitreous separation with remaining vitreomacular attachment and unperturbed foveal morphologic features...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28388704/quantitative-analysis-of-the-ellipsoid-zone-intensity-in-phenotypic-variations-of-intermediate-age-related-macular-degeneration
#5
Thomas J Gin, Zhichao Wu, Sky K H Chew, Robyn H Guymer, Chi D Luu
Purpose: Reduction of the ellipsoid zone (EZ) intensity has been reported in eyes with age-related macular degeneration (AMD). This study determined whether overall EZ intensity, in retinal locations undisturbed by pathologic features, is associated with the presence of clinical features, which are known important phenotypic risk factors for disease progression, large drusen, reticular pseudodrusen (RPD), and pigmentary abnormalities. Methods: A horizontal B-scan through the foveola on spectral-domain optical coherence tomography (SD-OCT) was performed in both eyes of 75 participants with bilateral intermediate AMD and 10 age-similar control participants...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28358948/economic-evaluation-of-a-home-based-age-related-macular-degeneration-monitoring-system
#6
John S Wittenborn, Traci Clemons, Carl Regillo, Nadim Rayess, Danielle Liffmann Kruger, David Rein
Background: Medicare recently approved coverage of home telemonitoring for early detection of incident choroidal neovascularization (CNV) among patients with age-related macular degeneration (AMD), but no economic evaluation has yet assessed its cost-effectiveness and budgetary impact. Objectives: To evaluate a home-based daily visual-field monitoring system using simulation methods and to apply the findings of the Home Monitoring of the Eye study to the US population at high risk for wet-form AMD...
March 30, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28351686/dna-damage-response-and-autophagy-in-the-degeneration-of-retinal-pigment-epithelial-cells-implications-for-age-related-macular-degeneration-amd
#7
REVIEW
Juha M T Hyttinen, Janusz Błasiak, Minna Niittykoski, Kati Kinnunen, Anu Kauppinen, Antero Salminen, Kai Kaarniranta
In this review we will discuss the links between autophagy, a mechanism involved in the maintenance of cellular homeostasis and controlling cellular waste management, and the DNA damage response (DDR), comprising various mechanisms preserving the integrity and stability of the genome. A reduced autophagy capacity in retinal pigment epithelium has been shown to be connected in the pathogenesis of age-related macular degeneration (AMD), an eye disease. This degenerative disease is a major and increasing cause of vision loss in the elderly in developed countries, primarily due to the profound accumulation of intra- and extracellular waste: lipofuscin and drusen...
March 27, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28339414/update-on-the-application-of-optic-nerve-sheath-fenestration
#8
Hui Chen, Qian Zhang, Song Tan, Huazhu Fu, Bradley K Farris, Zhenglin Yang
BACKGROUND: With the ongoing development of surgical procedures and instruments, the safety of optic nerve sheath fenestration (ONSF) has been improved. OBJECTIVE: Through the past three decades, progress has been made in preventing visual loss from chronic optic nerve swelling in idiopathic intracranial hypertension (IIH), secondary intracranial hypertension and local optic nerve diseases. We now review the updated application of ONSF in those diseases. METHODS: The application of ONSF in papilledema due to IIH, secondary intracranial hypertension to cerebral venous sinus occlusion, Cryptococcal meningitis, and intracranial mass or tumors is reviewed...
March 23, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28324113/microrna-expression-patterns-involved-in-amyloid-beta-induced-retinal-degeneration
#9
Peirong Huang, Junran Sun, Fenghua Wang, Xueting Luo, Jingyang Feng, Qing Gu, Te Liu, Xiaodong Sun
Purpose: Dry age-related macular degeneration (AMD) is characterized by the accumulation of drusen under Bruch's membrane, and amyloid beta (Aβ) is speculated to be one of the key pathologic factors. While the detrimental effects of Aβ on retinas have been widely explored, Aβ-induced epigenetic regulatory changes have yet to be fully investigated. We therefore aimed to identify the microRNA (miRNA) expression profiles in an Aβ-induced mouse model of retinal degeneration. Methods: C57BL/6 mice were intravitreally injected with Aβ1-40 or PBS and the eye tissues were collected for hematoxylin and eosin (H&E) staining, apoptosis immunofluorescence staining, and miRNA profiling...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28291154/assessment-of-drusen-and-other-retinal-degenerative-changes-in-patients-with-hereditary-hemochromatosis
#10
Moreno Menghini, Christian Prünte, Pierre A Krayenbuehl, Albina Nowak
PURPOSE: Iron can exert oxidative damage, and increased accumulation is believed to play a role in age-related macular degeneration. Hereditary hemochromatosis leads to an increase in total body iron. Patients with HH were assessed for drusen and other retinal changes. METHODS: Descriptive uncontrolled study of spectral-domain optical coherence tomography, short-wavelength autofluorescence, and color fundus images from patients with HH were used. Diagnosis of HH was established by measuring ferritin and transferrin saturation, and confirmed by genetic testing...
March 13, 2017: Retina
https://www.readbyqxmd.com/read/28282423/age-related-macular-degeneration-phenotypes-are-associated-with-increased-tumor-necrosis-alpha-and-subretinal-immune-cells-in-aged-cxcr5-knockout-mice
#11
Hu Huang, Ying Liu, Lei Wang, Wen Li
The role of chemokine receptor in age-related macular degeneration (AMD) remains elusive. The objective of this study is to investigate the role of chemokine receptor Cxcr5 in the pathogenesis of AMD. Cxcr5 gene expression levels (mRNA and protein) are higher in the retina and retinal pigment epithelium (RPE) of aged C57BL/6 wild type mice than younger ones. Vascular and glial cells express Cxcr5 and its ligand Cxcl13 in mouse retina. Aged Cxcr5 knockout (-/-) mice develop both early and late AMD-like pathological features...
2017: PloS One
https://www.readbyqxmd.com/read/28278345/photographic-documentation-of-optic-disc-drusen-over-more-than-50-years
#12
Lasse Malmqvist, Steffen Hamann
No abstract text is available yet for this article.
March 9, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28275527/individual-drusen-segmentation-and-repeatability-and-reproducibility-of-their-automated-quantification-in-optical-coherence-tomography-images
#13
Luis de Sisternes, Gowtham Jonna, Margaret A Greven, Qiang Chen, Theodore Leng, Daniel L Rubin
PURPOSE: To introduce a novel method to segment individual drusen in spectral-domain optical coherence tomography (SD-OCT), and evaluate its accuracy, and repeatability/reproducibility of drusen quantifications extracted from the segmentation results. METHODS: Our method uses a smooth interpolation of the retinal pigment epithelium (RPE) outer boundary, fitted to candidate locations in proximity to Bruch's Membrane, to identify regions of substantial lifting in the inner-RPE or inner-segment boundaries, and then separates and evaluates individual druse independently...
February 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28270492/retinal-pigment-epithelial-features-indicative-of-neovascular-progression-in-age-related-macular-degeneration
#14
Philipp K Roberts, Bernhard Baumann, Ferdinand G Schlanitz, Stefan Sacu, Matthias Bolz, Michael Pircher, Michael Hagmann, Christoph K Hitzenberger, Ursula Schmidt-Erfurth
BACKGROUND/AIMS: To identify characteristic retinal pigment epithelium (RPE) changes in fellow eyes of patients with neovascular age-related macular degeneration (nAMD) using polarisation-sensitive optical coherence tomography (PS-OCT). METHODS: Thirty-one fellow eyes of 31 patients with unilateral nAMD were evaluated in this cohort study of a prospective interventional trial. PS-OCT as well as conventional imaging including spectral-domain (SD)-OCT and fluorescein angiography (FA) were performed using a standardised protocol...
March 7, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28251353/prevalence-and-characteristics-of-pseudodrusen-subtypes-in-advanced-age-related-macular-degeneration
#15
Taiyo Shijo, Yoichi Sakurada, Seigo Yoneyama, Atsushi Sugiyama, Wataru Kikushima, Naohiko Tanabe, Hiroyuki Iijima
PURPOSE: The purpose of our study was to investigate the clinical and genetic characteristics of pseudodrusen subtypes and their incidence in advanced age-related macular degeneration (AMD). METHODS: We studied 84 eyes from 84 patients with pseudodrusen associated with advanced AMD, including typical AMD, polypoidal choroidal vasculopathy (PCV), retinal angiomatous proliferation (RAP), and geographic atrophy (GA). Multiple imaging modalities, including color fundus photography, spectral-domain optical coherence tomography (SD-OCT), near-infrared reflectance, and fundus autofluorescence, were employed to diagnose pseudodrusen and its subtypes...
March 1, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28249091/subretinal-glial-membranes-in-eyes-with-geographic-atrophy
#16
Malia M Edwards, D Scott McLeod, Imran A Bhutto, Rhonda Grebe, Maeve Duffy, Gerard A Lutty
Purpose: Müller cells create the external limiting membrane (ELM) by forming junctions with photoreceptor cells. This study evaluated the relationship between focal photoreceptors and RPE loss in geographic atrophy (GA) and Müller cell extension into the subretinal space. Methods: Human donor eyes with no retinal disease or geographic atrophy (GA) were fixed and the eye cups imaged. The retinal posterior pole was stained for glial fibrillary acidic protein (GFAP; astrocytes and activated Müller cells) and vimentin (Müller cells) while the submacular choroids were labeled with Ulex Europaeus Agglutinin lectin (blood vessels)...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28206671/surgery-for-cataracts-in-people-with-age-related-macular-degeneration
#17
REVIEW
Heather Casparis, Kristina Lindsley, Irene C Kuo, Shameema Sikder, Neil M Bressler
BACKGROUND: Cataract and age-related macular degeneration (AMD) are common causes of decreased vision that often occur simultaneously in people over age 50. Although cataract surgery is an effective treatment for cataract-induced visual loss, some clinicians suspect that such an intervention may increase the risk of worsening of underlying AMD and thus have deleterious effects on vision. OBJECTIVES: The objective of this review was to evaluate the effectiveness and safety of cataract surgery compared with no surgery in eyes with AMD...
February 16, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28196054/dynamism-of-dot-subretinal-drusenoid-deposits-in-age-related-macular-degeneration-demonstrated-with-adaptive-optics-imaging
#18
Yuhua Zhang, Xiaolin Wang, Pooja Godara, Tianjiao Zhang, Mark E Clark, C Douglas Witherspoon, Richard F Spaide, Cynthia Owsley, Christine A Curcio
PURPOSE: To investigate the natural history of dot subretinal drusenoid deposits (SDD) in age-related macular degeneration, using high-resolution adaptive optics scanning laser ophthalmoscopy. METHODS: Six eyes of four patients with intermediate age-related macular degeneration were studied at baseline and 1 year later. Individual dot SDD within the central 30° retina were examined with adaptive optics scanning laser ophthalmoscopy and optical coherence tomography...
February 10, 2017: Retina
https://www.readbyqxmd.com/read/28186886/joint-segmentation-of-retinal-layers-and-focal-lesions-in-3d-oct-data-of-topologically-disrupted-retinas
#19
Jelena Novosel, Koenraad Vermeer, Jan H de Jong, Ziyuan Wang, Lucas Van Vliet
Accurate quantification of retinal structures in 3D optical coherence tomography data of eyes with pathologies provides clinically relevant information. We present an approach to jointly segment retinal layers and lesions in eyes with topology-disrupting retinal diseases by a loosely coupled level sets framework. In the new approach, lesions are modelled as an additional space-variant layer delineated by auxiliary interfaces. Furthermore, the segmentation of interfaces is steered by local differences in the signal between adjacent retinal layers thereby allowing the approach to handle local intensity variations...
February 8, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28180131/semiautomated-segmentation-and-analysis-of-retinal-layers-in-three-dimensional-spectral-domain-optical-coherence-tomography-images-of-patients-with-atrophic-age-related-macular-degeneration
#20
Zhihong Hu, Yue Shi, Kiran Nandanan, Srinivas R Sadda
Historically, regular drusen and geographic atrophy (GA) have been recognized as the hallmarks of nonneovascular age-related macular degeneration (AMD). Recent imaging developments have revealed another distinct nonneovascular AMD phenotype, reticular pseudodrusen (RPD). We develop an approach to semiautomatically quantify retinal surfaces associated with various AMD lesions (i.e., regular drusen, RPD, and GA) in spectral domain (SD) optical coherence tomography (OCT) images. More specifically, a graph-based algorithm was used to segment multiple retinal layers in SD-OCT volumes...
January 2017: Neurophotonics
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