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https://www.readbyqxmd.com/read/28211882/aflibercept-as-a-second-line-therapy-for-neovascular-age-related-macular-degeneration-in-israel-asli-study
#1
L Tiosano, O Segal, N Mathalone, A Pollack, R Ehrlich, I Klemperer, Y Barak, I Moroz, I Chowers, M Goldstein
PurposeThe purpose of this study is to evaluate an early switch to aflibecept in eyes with neovascular age-related macular degeneration (nvAMD) showing partial or lack of response for initial therapy with bevacizumab.MethodsThe Aflibercept as a Second Line Therapy for Neovascular Age Related Macular Degeneration in Israel (ASLI) was a prospective, multicenter, single-arm clinical trial. Eyes with nvAMD having incomplete response to 3-9 prior bevacizumab injections were recruited. Three monthly intravitreal aflibercept (2 mg) injections were administered, followed by two bi-monthly injections and a final examination at week 28...
February 17, 2017: Eye
https://www.readbyqxmd.com/read/28208185/evaluation-of-progressive-visual-dysfunction-and-retinal-degeneration-in-patients-with-parkinson-s-disease
#2
Maria Satue, Maria J Rodrigo, Javier Obis, Elisa Vilades, Hector Gracia, Sofia Otin, Maria I Fuertes, Raquel Alarcia, Jose A Crespo, Vicente Polo, Jose M Larrosa, Luis E Pablo, Elena Garcia-Martin
Purpose: To quantify changes in visual function parameters and in the retinal nerve fiber layer and macular thickness over a 5-year period in patients with Parkinson's disease (PD). Methods: Thirty patients with PD and 30 healthy subjects underwent a complete ophthalmic evaluation, including assessment of visual acuity, contrast sensitivity vision, color vision, and retinal evaluation with spectral-domain optical coherence tomography (SD-OCT). All subjects were reevaluated after 5 years to quantify changes in visual function parameters, the retinal nerve fiber layer, and macular thickness...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28198095/genetic-risk-models-influence-of-model-size-on-risk-estimates-and-precision
#3
Ying Shan, Gerard Tromp, Helena Kuivaniemi, Diane T Smelser, Shefali S Verma, Marylyn D Ritchie, James R Elmore, David J Carey, Yvette P Conley, Michael B Gorin, Daniel E Weeks
Disease risk estimation plays an important role in disease prevention. Many studies have found that the ability to predict risk improves as the number of risk single-nucleotide polymorphisms (SNPs) in the risk model increases. However, the width of the confidence interval of the risk estimate is often not considered in the evaluation of the risk model. Here, we explore how the risk and the confidence interval width change as more SNPs are added to the model in the order of decreasing effect size, using both simulated data and real data from studies of abdominal aortic aneurysms and age-related macular degeneration...
February 15, 2017: Genetic Epidemiology
https://www.readbyqxmd.com/read/28197357/disturbed-matrix-metalloproteinase-pathway-in-both-age-related-macular-degeneration-and-alzheimer-s-disease
#4
Ali Aijaz Hussain, Yunhee Lee, Jin-Jun Zhang, Paul T Francis, John Marshall
Purpose. Abnormal protein deposits including β-amyloid, found in ageing Bruch's membrane and brain, are susceptible to degradation by matrix metalloproteinases (MMPs). In ageing Bruch's membrane, these MMPs become less effective due to polymerisation and aggregation reactions (constituting the MMP Pathway), a situation much advanced in age-related macular degeneration (AMD). The likely presence of this MMP Pathway in brain with the potential to compromise the degradation of β-amyloid associated with Alzheimer's disease (AD) has been investigated...
2017: Journal of Neurodegenerative Diseases
https://www.readbyqxmd.com/read/28196945/healthcare-experiences-of-patients-with-age-related-macular-degeneration-have-things-improved-cross-sectional-survey-responses-of-macular-society-members-in-2013-compared-with-1999
#5
Emily M Boxell, Winfried M Amoaku, Clare Bradley
OBJECTIVE: To investigate healthcare experiences of patients with age-related macular degeneration (AMD) and determine whether a previous survey and Royal College of Ophthalmologists (RCOphth) management guidelines brought improvements. DESIGN: Cross-sectional survey of Macular Society members in 2013 compared with previous 1999 survey. SETTING: UK Postal Questionnaires. PARTICIPANTS: 1169 respondents in 2013 (1187 in 1999)...
February 14, 2017: BMJ Open
https://www.readbyqxmd.com/read/28196060/angiographic-subtypes-of-polypoidal-choroidal-vasculopathy-in-taiwan-a-prospective-multicenter-study
#6
Ling Yeung, Chien-Neng Kuo, An-Ning Chao, Kuan-Jen Chen, Wei-Chi Wu, Chien-Hsiung Lai, Nan-Kai Wang, Yih-Shiou Hwang, Ching-Lung Chen, Chi-Chun Lai
PURPOSE: To determine the incidence and clinical characteristics of angiographic subtypes of polypoidal choroidal vasculopathy (PCV). METHODS: It is a prospective, multicenter, cross-sectional study. Patients with newly diagnosed exudative macular degeneration are classified into PCV, age-related macular degeneration (AMD), and retinal angiomatous proliferation. Polypoidal choroidal vasculopathy is further classified into two subtypes depending on the presence (Type 1: polypoidal choroidal neovascularization) or absence (Type 2: typical PCV) of feeder vessels on indocyanine green angiography...
February 10, 2017: Retina
https://www.readbyqxmd.com/read/28195603/classification-of-exudative-age-related-macular-degeneration-with-pachyvessels-on-en-face-swept-source-optical-coherence-tomography
#7
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/28192798/identification-of-angpt2-as-a-new-gene-for-neovascular-age-related-macular-degeneration-and-polypoidal-choroidal-vasculopathy-in-the-chinese-and-japanese-populations
#8
Li Ma, Marten E Brelen, Motokazu Tsujikawa, Haoyu Chen, Wai Kit Chu, Timothy Y Y Lai, Danny S C Ng, Kaori Sayanagi, Chicako Hara, Noriyasu Hashida, Vesta C K Chan, Pancy O S Tam, Alvin L Young, Weiqi Chen, Kohji Nishida, Chi Pui Pang, Li Jia Chen
Purpose: We determine the angiopoietin 2 (ANGPT2) gene as a new susceptibility gene for neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV). Methods: A total of 34 haplotype-tagging single-nucleotide polymorphisms (SNPs) were first genotyped in an exploratory Hong Kong Chinese cohort. Suggestive SNPs were replicated in a Shantou Chinese cohort and an Osaka Japanese cohort, with a total of 2343 subjects. The SNP rs800292 in the complement factor H (CFH) gene was genotyped in all the subjects...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28192539/optical-coherence-tomography-segmentation-analysis-in-relapsing-remitting-versus-progressive-multiple-sclerosis
#9
Raed Behbehani, Abdullah Abu Al-Hassan, Ali Al-Salahat, Devarajan Sriraman, J D Oakley, Raed Alroughani
INTRODUCTION: Optical coherence tomography (OCT) with retinal segmentation analysis is a valuable tool in assessing axonal loss and neuro-degeneration in multiple sclerosis (MS) by in-vivo imaging, delineation and quantification of retinal layers. There is evidence of deep retinal involvement in MS beyond the inner retinal layers. The ultra-structural retinal changes in MS in different MS phenotypes can reflect differences in the pathophysiologic mechanisms. There is limited data on the pattern of deeper retinal layer involvement in progressive MS (PMS) versus relapsing remitting MS (RRMS)...
2017: PloS One
https://www.readbyqxmd.com/read/28186507/one-year-real-world-outcomes-in-patients-receiving-fixed-dosing-aflibercept-for-neovascular-age-related-macular-degeneration
#10
H Almuhtaseb, S Kanavati, S R Rufai, A J Lotery
PurposeTo investigate 1-year visual and anatomic outcomes of intravitreal aflibercept for neovascular age-related macular degeneration (nAMD) given at a fixed 8-weekly interval.MethodsRetrospective, single-practice data analysis from an electronic medical record system of 255 eyes (223 patients) with treatment-naïve nAMD receiving 8-weekly aflibercept.ResultsMean logarithm of the minimum angle of resolution best-corrected visual acuity (BCVA) improved from 0.66 at baseline to 0.50 at month 11 (P<0.0001)...
February 10, 2017: Eye
https://www.readbyqxmd.com/read/28182161/combination-verteporfin-photodynamic-therapy-ranibizumab-dexamethasone-in-choroidal-neovascularization-due-to-age-related-macular-degeneration-results-of-a-phase-ii-randomized-trial
#11
Ron P Gallemore, Josh Wallsh, Henry L Hudson, Allen C Ho, Richard Chace, Joel Pearlman
PURPOSE: To assess whether combination therapy (CT) reduces retreatments when compared to ranibizumab monotherapy (RM), while safely maintaining similar vision outcomes. METHODS: In this 24-month trial, patients with age-related macular degeneration (AMD) were randomized to 1) quarter-fluence or 2) half-fluence triple therapy (verteporfin photodynamic therapy [vPDT] + ranibizumab + dexamethasone), 3) half-fluence double therapy (vPDT + ranibizumab), or 4) RM. The primary outcomes were number of retreatment visits and change from baseline in visual acuity (VA) at 12 months...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28178068/features-of-the-macula-and-central-visual-field-and-fixation-pattern-in-patients-with-retinitis-pigmentosa
#12
Isil Sayman Muslubas, Murat Karacorlu, Serra Arf, Mumin Hocaoglu, Mehmet Giray Ersoz
PURPOSE: To evaluate macular features and fixation pattern in patients with retinitis pigmentosa (RP) compared with healthy controls, using spectral-domain optical coherence tomography and MP-1 microperimetry. METHODS: Eighty-one eyes of 81 patients with RP and 90 eyes of 90 healthy subjects were assessed. The central foveal thickness, subfoveal choroidal thickness, ellipsoid zone length, and the mean retinal sensitivities and fixation characteristics were evaluated by spectral-domain optical coherence tomography and MP-1 microperimetry...
February 7, 2017: Retina
https://www.readbyqxmd.com/read/28176950/circulating-monocytes-and-b-lymphocytes-in-neovascular-age-related-macular-degeneration
#13
Sven Magnus Hector, Torben Lykke Sørensen
BACKGROUND: Individuals with neovascular age-related macular degeneration (AMD) have altered number and distribution of retinal macrophages and show changes in circulating antibodies. We wanted to investigate the corresponding precursors, with subpopulations. We therefore measured monocyte and B-lymphocyte populations in individuals with neovascular AMD. DESIGN: This was an observational case-control study. PARTICIPANTS OR SAMPLES: A total of 31 individuals with neovascular AMD and 30 healthy age-matched controls were included...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28169876/association-of-drusen-volume-with-choroidal-parameters-in-nonneovascular-age-related-macular-degeneration
#14
Siva Balasubramanian, Jianqin Lei, Muneeswar G Nittala, Swetha B Velaga, Jonathan Haines, Margaret A Pericak-Vance, Dwight Stambolian, SriniVas R Sadda
PURPOSE: The choroid is thought to be relevant to the pathogenesis of nonneovascular age-related macular degeneration, but its role has not yet been fully defined. In this study, we evaluate the relationship between the extent of macular drusen and specific choroidal parameters, including thickness and intensity. METHODS: Spectral domain optical coherence tomography images were collected from two distinct, independent cohorts with nonneovascular age-related macular degeneration: Amish (53 eyes of 34 subjects) and non-Amish (40 eyes from 26 subjects)...
February 6, 2017: Retina
https://www.readbyqxmd.com/read/28168827/auckland-cataract-study-2-clinical-outcomes-of-phacoemulsification-cataract-surgery-in-a-public-teaching-hospital
#15
Bia Z Kim, Dipika V Patel, Charles Nj McGhee
IMPORTANCE: A contemporary benchmark for the most common ophthalmic surgery. BACKGROUND: To assess patient characteristics and outcomes of contemporary phacoemulsification cataract surgery in a New Zealand public teaching hospital setting. DESIGN: Prospective observational study. PARTICIPANTS: Consecutive cases (N = 500) of phacoemulsification surgery between April and June 2015. METHODS: An independent observer assessed all clinical and surgical data pre-operatively and 4-6 weeks post-operatively...
February 7, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28166657/ocular-surface-effects-of-repeated-application-of-povidone-iodine-in-patients-receiving-frequent-intravitreal-injections
#16
Habiba Saedon, Jennifer Nosek, Julian Phillips, Nirodhini Narendran, Yit C Yang
BACKGROUND: The aim of this study was to investigate the patient reported symptoms and objective signs of tear film and ocular surface abnormalities experienced by patients undergoing repeated exposure to povidone iodine as a consequence of requiring frequent intravitreal injections for wet macular degeneration. METHODS: This was a prospective study of consecutive patients who had received recent povidone 5% solution for sterile preparation of intravitreal injection less than 3 months prior to inclusion with a total of at least 3 intravitreal injections for macular degeneration...
February 6, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28166316/is-choroidal-or-scleral-thickness-related-to-myopic-macular-degeneration
#17
Chee Wai Wong, Val Phua, Shu Yen Lee, Tien Yin Wong, Chui Ming Gemmy Cheung
Purpose: The relative contribution of mechanical and vascular factors to the pathogenesis of myopic macular degeneration (MMD) is unclear. To address this gap, we examined the association of choroidal thickness (CT) and scleral thickness (ST) with MMD. Methods: Prospective, clinic-based case series of 62 eyes of 41 patients with high myopia (≤-6 diopters or axial length ≥26.5 mm). Swept-source optical coherence tomography (SSOCT) was performed to measure subfoveal CT and ST...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28166160/predictive-factors-for-development-of-neovascular-age-related-macular-degeneration-a-spectral-domain-optical-coherence-tomography-study
#18
Serena Fragiotta, Tommaso Rossi, Alessandro Cutini, Pier L Grenga, Enzo M Vingolo
PURPOSE: To investigate the risk factors predictive for the development of neovascular age-related macular degeneration (NVAMD) by means of spectral-domain optical coherence tomography. METHODS: Retrospective study of 73 eyes graded Stage 2 and Stage 3 according to the AMD International Grading System with minimum follow-up of 24 months. Drusenoid pigment epithelial detachment, hyperreflective foci, external limiting membrane, inner ellipsoid band, and retinal pigment epithelium integrity were analyzed at baseline and last follow-up...
February 3, 2017: Retina
https://www.readbyqxmd.com/read/28159936/nitration-of-tyrosines-in-complement-factor-h-domains-alters-its-immunological-activity-and-mediates-a-pathogenic-role-in-age-related-macular-degeneration
#19
Matthew Krilis, Miao Qi, Michele C Madigan, Jason W H Wong, Mahmoud Abdelatti, Robyn H Guymer, John Whitelock, Peter McCluskey, Peng Zhang, Jian Qi, Alex P Hunyor, Steven A Krilis, Bill Giannakopoulos
Nitrosative stress has been implicated in the pathogenesis of age related macular degeneration (AMD). Tyrosine nitration is a unique type of post translational modification that occurs in the setting of inflammation and nitrosative stress. To date, the significance and functional implications of tyrosine nitration of complement factor H (CFH), a key complement regulator in the eye has not been explored, and is examined in this study in the context of AMD pathogenesis.Sections of eyes from deceased individuals with AMD (n = 5) demonstrated the presence of immunoreactive nitrotyrosine CFH...
February 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28157222/assessment-of-the-apple-ipad-as-a-low-vision-reading-aid
#20
E Morrice, A P Johnson, J-A Marinier, W Wittich
PurposeLow-vision clients frequently report having problems with reading. Using magnification, reading performance (as measured by reading speed) can be improved by up to 200%. Current magnification aids can be expensive or bulky; therefore, we explored if the Apple iPad offers comparable performance in improving reading speeds, in comparison with a closed-circuit television (CCTV) video magnifier, or other magnification devices.MethodsWe recruited 100 participants between the ages of 24-97 years, with low vision who were literate and cognitively capable, of whom 57 had age-related macular degeneration...
February 3, 2017: Eye
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