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age related maculopathy

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https://www.readbyqxmd.com/read/28436087/a-deeper-look-at-torpedo-maculopathy
#1
REVIEW
Casey Hamm, Diana Shechtman, Sherrol Reynolds
BACKGROUND: Torpedo maculopathy is a rare, congenital maculopathy classically diagnosed funduscopically as a 'torpedo-shaped' lesion located temporal to the fovea. This case describes a torpedo maculopathy with non-classic optical coherence tomographic (OCT) findings and collaborative OCT angiographic (OCTA) findings. CASE REPORT: A 60-year-old Caucasian woman presented with a history of longstanding distortion and paracentral scotoma of the right eye. She had a positive family history of age-related macular degeneration...
April 23, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28424788/fully-automated-robust-system-to-detect-retinal-edema-central-serous-chorioretinopathy-and-age-related-macular-degeneration-from-optical-coherence-tomography-images
#2
Samina Khalid, M Usman Akram, Taimur Hassan, Ammara Nasim, Amina Jameel
Maculopathy is the excessive damage to macula that leads to blindness. It mostly occurs due to retinal edema (RE), central serous chorioretinopathy (CSCR), or age related macular degeneration (ARMD). Optical coherence tomography (OCT) imaging is the latest eye testing technique that can detect these syndromes in early stages. Many researchers have used OCT images to detect retinal abnormalities. However, to the best of our knowledge, no research that presents a fully automated system to detect all of these macular syndromes is reported...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28422552/rapid-assessment-of-avoidable-blindness-and-diabetic-retinopathy-in-gilan-province-iran
#3
Marzieh Katibeh, Hassan Behboudi, Siamak Moradian, Yousef Alizadeh, Ramin Beiranvand, Hamideh Sabbaghi, Hamid Ahmadieh
PURPOSE: To conduct an assessment of avoidable blindness and diabetic retinopathy (DR) in Gilan, 2014. METHODS: A cross-sectional population-based survey was performed on a representative sample of urban and rural individuals aged ≥50 years of the province. Blindness was defined as presenting visual acuity (PVA) <3/60 in the better eye. Moderate visual impairment (MVI) and severe visual impairment (SVI) were defined as 6/60 ≤ PVA <6/18 and 3/60 ≤ PVA <6/60 in the better eye, respectively...
April 19, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28418539/ophthalmic-manifestations-of-congenital-zika-syndrome-in-colombia-and-venezuela
#4
Juan B Yepez, Felipe A Murati, Michele Pettito, Carlos F Peñaranda, Jazmin de Yepez, Gladys Maestre, J Fernando Arevalo
Importance: The ocular manifestations and sequelae of Zika virus infection are not well known. Recently, the World Health Organization changed the declaration of Zika as a public health emergency and designated the viral outbreak and related microcephaly clusters as a long-term program of work. This change indicates the urgent need to evaluate and document ophthalmic manifestations in patients for timely management of this disease. In addition, confirmation whether the public health problem in Brazil extends to other regions in South America is needed...
April 13, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28377036/regression-patterns-of-iris-melanoma-after-palladium-103-103-pd-plaque-brachytherapy
#5
Sonal S Chaugule, Paul T Finger
PURPOSE: To evaluate the patterns of regression of iris melanoma after treatment with palladium-103 ((103)Pd) plaque brachytherapy. DESIGN: Retrospective, nonrandomized, interventional case series. PARTICIPANTS: Fifty patients with primary malignant melanoma of the iris. METHODS: Palladium-103 plaque brachytherapy. MAIN OUTCOME MEASURES: Changes in tumor size, pigmentation, and vascularity; incidence of iris neovascularization; and radiation-related complications...
April 1, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28358956/ethnic-differences-in-the-association-between-age-related-macular-degeneration-and-vision-specific-functioning
#6
Eva K Fenwick, Ryan E K Man, Chui Ming Gemmy Cheung, Charumathi Sabanayagam, Ching-Yu Cheng, Kumari Neelam, Jacqueline Chua, Alfred T L Gan, Paul Mitchell, Tien Y Wong, Ecosse L Lamoureux
Importance: Understanding the link between ethnicity and health is critical to making appropriate public policy decisions. Few population-level data are available about this connection, however, including the influence of ethnicity on the association between age-related macular degeneration (AMD)and vision-specific functioning (VSF). Objective: To identify the influence of ethnicity on VSF among Chinese, Malay, and Indian patients with AMD. Design, Setting, and Participants: This cross-sectional, population-based study relied on patients and their data from 3 population-based studies in 3 ethnic groups: Chinese, Malay and Indian...
March 30, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28332910/association-between-dietary-xanthophyll-lutein-and-zeaxanthin-intake-and-early-age-related-macular-degeneration-the-atherosclerosis-risk-in-communities-study
#7
Henry Lin, Julie A Mares, Michael J LaMonte, William E Brady, Michelle W Sahli, Ronald Klein, Barbara E K Klein, Jing Nie, Amy E Millen
PURPOSE: To examine the association between xanthophyll intake and prevalent early age-related macular degeneration (AMD) using data from the Atherosclerosis Risk in Communities Study (n = 10,295). Potential effect modification by genetic polymorphisms and biomarkers of high-density lipoprotein (HDL) metabolism was explored. METHODS: Xanthophyll intake was assessed at visit 1 (1987-1989) using food frequency questionnaires. Prevalent early AMD was assessed at visit 3 (1993-1995) via retinal photographs...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28303777/placental-up-regulation-of-leptin-and-arms2-is-associated-with-growth-discordance-in-monochorionic-diamniotic-twin-pregnancies
#8
Luming Sun, Jia Zhou, Kai Wang, Jian Wang, Ling Shang, Jianguang Zhang, Junqing Wu, David S Cram
Fetal growth discordance is a relatively common complication of monochorionic diamniotic (MCDA) twin pregnancies and is caused by a combination of maternal and placental factors. The aim of the study was to survey placental gene expression patterns and identify genes associated with growth discordance. Clinical samples comprised eight growth-discordant MCDA twin placentas (31+3-34+4 weeks gestational age) and six growth-concordant twin placentas (31+2-37 weeks gestational age). Gene expression libraries were constructed from placental biopsy samples and analyzed by RNA-sequencing...
April 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28195603/classification-of-exudative-age-related-macular-degeneration-with-pachyvessels-on-en-face-swept-source-optical-coherence-tomography
#9
Danny Siu-Chun Ng, Malini Bakthavatsalam, Frank Hiu-Ping Lai, Carol Yim-Lui Cheung, Gemmy Chu-Ming Cheung, Fang Yao Tang, Chi Wai Tsang, Timothy Yuk-Yau Lai, Tien Yin Wong, Mårten Erik Brelén
Purpose: The purpose of this study was to classify exudative maculopathy by the presence of pachyvessels on en face swept-source optical coherence tomography (SSOCT). Methods: Consecutive patients with signs of exudative maculopathy underwent SSOCT, fluorescein and indocyanine green angiography (ICGA), ultra-widefield fundus color photography, and autofluorescence examinations. Images were analyzed in a masked fashion by two sets of four examiners in different sessions: (1) the presence of pachyvessels in en face OCT and (2) features of exudative maculopathy in conventional imaging modalities...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28150038/choroidal-structures-in-polypoidal-choroidal-vasculopathy-neovascular-age-related-maculopathy-and-healthy-eyes-determined-by-binarization-of-swept-source-optical-coherence-tomographic-images
#10
Malini Bakthavatsalam, Danny Siu-Chun Ng, Frank Hiu-Ping Lai, Fang Yao Tang, Mårten Erik Brelén, Chi Wai Tsang, Timothy Yuk-Yau Lai, Carol Yim-Lui Cheung
PURPOSE: To evaluate quantitatively the choroidal vascularity in polypoidal choroidal vasculopathy (PCV) and neovascular age-related macular degeneration (AMD) patients compared to healthy controls. METHODS: All eyes underwent swept source optical coherence tomography (OCT), and choroidal images were binarized into blood vessels lumen and stroma. The choroidal vascular index (CVI) was defined as the ratio of luminal area (LA) over total choroidal area of the subfoveal region with a width of 1500 μm...
February 1, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28149791/population-based-survey-of-prevalence-causes-and-risk-factors-for-blindness-and-visual-impairment-in-an-aging-chinese-metropolitan-population
#11
Jian-Yan Hu, Liang Yan, Yong-Dong Chen, Xin-Hua Du, Ting-Ting Li, De-An Liu, Dong-Hong Xu, Yi-Min Huang, Qiang Wu
AIM: To assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly (≥60 years of age) Chinese people in a metropolitan area of Shanghai, China. METHODS: Random cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity (PVA) and best-corrected visual acuity (BCVA) were checked by the Early Treatment Diabetic Retinopathy Study (ETDRS) visual chart...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28128407/next-generation-sequencing-analysis-of-the-arms2-gene-in-turkish-exudative-age-related-macular-degeneration-patients
#12
H Bardak, M Gunay, Y Ercalik, Y Bardak, H Ozbas, O Bagci
Age-related macular degeneration (AMD) is the leading cause of blindness in developed countries. It is a complex disease with both genetic and environmental risk factors. To improve clinical management of this condition, it is important to develop risk assessment and prevention strategies for environmental influences, and establish a more effective treatment approach. The aim of the present study was to investigate age-related maculopathy susceptibility protein 2 (ARMS2) gene sequences among Turkish patients with exudative AMD...
January 23, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28108569/five-year-progression-of-unilateral-age-related-macular-degeneration-to-bilateral-involvement-the-three-continent-amd-consortium-report
#13
Nichole Joachim, Johanna Maria Colijn, Annette Kifley, Kristine E Lee, Gabriëlle H S Buitendijk, Barbara E K Klein, Chelsea E Myers, Stacy M Meuer, Ava G Tan, Elizabeth G Holliday, John Attia, Gerald Liew, Sudha K Iyengar, Paulus T V M de Jong, Albert Hofman, Johannes R Vingerling, Paul Mitchell, Caroline C W Klaver, Ronald Klein, Jie Jin Wang
PURPOSE: To assess the 5-year progression from unilateral to bilateral age-related macular degeneration (AMD) and associated risk factors. DESIGN: Pooled data analyses of three prospective population-based cohorts, the Blue Mountains Eye Study, Beaver Dam Eye Study and Rotterdam Study. METHODS: Retinal photography and interview with comprehensive questionnaires were conducted at each visit of three studies. AMD was assessed following the modified Wisconsin AMD grading protocol...
January 20, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28101043/effects-of-disseminated-mycobacterial-infection-on-age-related-macular-degeneration
#14
Geoffrey Collett, Natalia Lopez, Pedro F Lopez
Our patient, in the 7th decade of life, presented with worsening blurry vision over 3 weeks. The pertinent history included nonexudative age-related macular degeneration, recent pulmonary mycobacterial infection, and autoimmune pancreatitis. The patient had decreased visual acuity in both eyes; the remaining findings of our examination were relatively benign. The diagnosis of bilateral exudative age-related macular degeneration was aided by ocular imaging. Not only were exudative changes confirmed, but one modality suggested an underlying occult choroiditis, which presumably fueled a local inflammatory drive leading to evolution of the disease...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28095100/association-of-combined-cigarette-smoking-and-arms2-loc387715-a69s-polymorphisms-with-age-related-macular-degeneration-a-meta-analysis
#15
Mohammad Hossein Jabbarpoor Bonyadi, Mehdi Yaseri, Mortaza Bonyadi, Masoud Soheilian, Homayoun Nikkhah
PURPOSE: The age-related maculopathy susceptibility2 (ARMS2)/LOC387715 A69S (rs10490924) polymorphism and cigarette smoking have been shown to have significant association with AMD. In this meta-analysis we used the results of available association studies of combined ARMS2/LOC387715 genotypes and cigarette smoking with AMD to estimate the possible synergistic or multiplicative effects. METHODS: Heterogeneity of studies was evaluated using the Cochran Q-test and the I-square index...
January 17, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28029444/associations-between-serum-vitamin-d-and-genetic-variants-in-vitamin-d-pathways-and-age-related-macular-degeneration-in-the-european-eye-study
#16
Gareth J McKay, Ian S Young, Ann McGinty, Graham C G Bentham, Usha Chakravarthy, Mati Rahu, Johan Seland, Gisele Soubrane, Laura Tomazzoli, Fotis Topouzis, Jesus Vioque, Paulus T V M de Jong, Astrid E Fletcher
PURPOSE: To study associations between early and late age-related macular degeneration (AMD) and neovascular AMD (nvAMD) with serum 25-hydroxy vitamin D (25(OH)D) and genetic variants in vitamin D pathway genes. DESIGN: Population-based, cross-sectional study in a random sample aged 65 years or older from 7 European countries. PARTICIPANTS: Of 4753 participants, 4496 (2028 men and 2468 women), with a mean age of 73 years, provided a blood sample; 2137 had no signs of AMD, 2209 had early AMD, and 150 had late AMD, of whom 104 had nvAMD...
January 2017: Ophthalmology
https://www.readbyqxmd.com/read/27928964/hot-topics-in-pharmacogenetics-of-age-related-macular-degeneration
#17
Stephen G Schwartz, Milam A Brantley, Jaclyn L Kovach, Andrzej Grzybowski
Age-related macular degeneration (AMD) is a leading cause of irreversible visual loss and is primarily treated with nutritional supplementation as well as with anti-vascular endothelial growth factor (VEGF) agents for certain patients with neovascular disease. AMD is a complex disease with both genetic and environmental risk factors. In addition, treatment outcomes from nutritional supplementation and anti-VEGF agents vary considerably. Therefore, it is reasonable to suspect that there may be pharmacogenetic influences on these treatments...
2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27893622/image-quality-and-artifacts-on-optical-coherence-tomography-angiography-comparison-of-pathologic-and-paired-fellow-eyes-in-65-patients-with-unilateral-choroidal-melanoma-treated-with-plaque-radiotherapy
#18
Emil A T Say, Sandor Ferenczy, George N Magrath, Wasim A Samara, Chloe T L Khoo, Carol L Shields
PURPOSE: To study image quality and artifacts seen on optical coherence tomography angiography (OCTA). METHODS: Sixty-five consecutive patients with unilateral posterior uveal melanoma treated with plaque radiotherapy had OCTA during follow-up. Optical coherence tomography angiography was performed on both the affected and fellow eye. Signal strength and frequency of image artifacts on en face images were compared between affected and fellow eyes. RESULTS: A total of 130 eyes in 65 patients were analyzed, the mean age at time of OCTA was 55 years (median: 56, range: 12-81 years), and 39 (39/65, 60%) were female...
November 23, 2016: Retina
https://www.readbyqxmd.com/read/27866147/benefits-potential-harms-and-optimal-use-of-nutritional-supplementation-for-preventing-progression-of-age-related-macular-degeneration
#19
REVIEW
Carlos H Rojas-Fernandez, Kevin Tyber
OBJECTIVE: To briefly review age-related macular degeneration (AMD), the main findings from the Age Related Eye Disease Study (AREDS) report number 8 on the use of nutritional supplements for AMD, and to focus on data suggesting that supplement use should be guided using genetic testing of AMD risk genes. DATA SOURCES: A literature search (January 2001 through October 26, 2016) was conducted using MEDLINE and the following MeSH terms: Antioxidants/therapeutic use, Genotype, Macular Degeneration/drug therapy, Macular degeneration/genetics, Dietary Supplements, Proteins/genetics, and Zinc Compounds/therapeutic use Bibliographies of publications identified were also reviewed...
November 19, 2016: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/27847643/novel-perspectives-on-swept-source-optical-coherence-tomography
#20
REVIEW
Fabio Lavinsky, Daniel Lavinsky
Technologies for multimodal digital imaging of vitreoretinal diseases have improved the accuracy of diagnosis and the depth of the knowledge of the mechanisms of disease and their response to treatments. Optic coherence tomography (OCT) has become a mandatory tool for the management and for the follow-up of retinal pathologies. OCT technology evolved in the last two decades from time-domain to spectral domain and recently to the swept-source OCTs (SS-OCT). SS-OCT improved the depth of imaging and the scan speed, thus adding novel algorithms and features such as for vitreous and vitreoretinal interface evaluation, choroid segmentation and mapping, OCT angiography and En-face OCT...
2016: International Journal of Retina and Vitreous
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