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Age related macular degeneration

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https://www.readbyqxmd.com/read/29145690/-visual-analysis-of-retinal-oct-data
#1
Martin Röhlig, Anselm Jünemann, Dagmar-Christiane Fischer, Ruby Kala Prakasam, Oliver Stachs, Heidrun Schumann
Optical coherence tomography (OCT) enables noninvasive high-resolution 3D imaging of the human retina, and thus plays a fundamental role in ophthalmology. Via OCT examination, even subtle retinal changes can be captured, which occur in very early stages of different diseases (e.g., glaucoma, diabetes mellitus, or age-related macular degeneration). Yet, analyzing the resulting data is challenging. Conventionally, OCT data are strongly aggregated via automated methods. While this reduces the amount of information to be analyzed, it also makes it difficult, if not impossible, to identify small and localized retinal changes...
November 16, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29145549/generational-differences-in-the-5-year-incidence-of-age-related-macular-degeneration
#2
Karen J Cruickshanks, David M Nondahl, Lauren J Johnson, Dayna S Dalton, Mary E Fisher, Guan-Hua Huang, Barbara E Klein, Ronald Klein, Carla R Schubert
Importance: Whether a reported decline in the risk of developing age-related macular degeneration (AMD) continued for people born during the Baby Boom years (1946-1964) or later is unknown. These data are important to plan for ocular health care needs in the 21st century. Objectives: To determine whether the 5-year risk for AMD declined by generation and to identify factors that contributed to improvement in risk. Design, Setting, and Participants: Data came from the longitudinal cohort Beaver Dam Eye Study (March 1, 1988, through September 15, 1990, and March 1, 1993, through June 15, 1995) and the Beaver Dam Offspring Study (June 8, 2005, through August 4, 2008, and July 12, 2010, through March 21, 2013)...
November 16, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29142592/advances-in-age-related-macular-degeneration-understanding-and-therapy
#3
Joan W Miller, Saghar Bagheri, Demetrios G Vavvas
While the development of anti-vascular endothelial growth factor (anti-VEGF) as a therapy for neovascular age-related macular degeneration (AMD) was a great success, the pathologic processes underlying dry AMD that eventually leads to photoreceptor dysfunction, death, and vision loss remain elusive to date, with a lack of effective therapies and increasing prevalence of the disease. There is an overwhelming need to improve the classification system of AMD, to increase our understanding of cell death mechanisms involved in both neovascular and non-neovascular AMD, and to develop better biomarkers and clinical endpoints to eventually be able to identify better therapeutic targets-especially early in the disease process...
2017: US Ophthalmic Review
https://www.readbyqxmd.com/read/29138977/-reasons-for-delayed-and-discontinued-therapy-in-age-related-macular-degeneration
#4
M W M Wintergerst, J Bouws, J Loss, B Heimes, D Pauleikhoff, F G Holz, R P Finger
BACKGROUND: Critical prerequisites for successful therapy of neovascular age-related macular degeneration (nvAMD) are an early initiation and continuous monitoring; however, delays in starting therapy and non-medically indicated discontinuation of therapy are frequent, which limits therapy efficacy and, thus, visual outcomes. OBJECTIVE: To identify the reasons for delay in therapy and non-medically indicated termination of therapy. MATERIAL AND METHODS: Patients who had started a new therapy (starters) and those who independently terminated therapy (dropouts) were interviewed by telephone with a specific, standardized questionnaire...
November 14, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29138543/location-of-submacular-hemorrhage-as-a-predictor-of-visual-outcome-after-intravitreal-ranibizumab-for-age-related-macular-degeneration
#5
Dimitrios Karagiannis, Irini Chatziralli, Konstantinos Kaprinis, Ilias Georgalas, Efstratios Parikakis, Panagiotis Mitropoulos
Purpose: To evaluate the anatomical and functional outcomes in patients with submacular hemorrhage (SMH) due to age-related macular degeneration (AMD) treated with ranibizumab, and to evaluate the potential role of the SMH location in the final outcome after treatment. Methods: Participants in this study were 12 treatment-naïve patients with SMH due to neovascular AMD who were treated with intravitreal ranibizumab and had at least 12 months' follow-up. All patients underwent best-corrected visual acuity measurement and optical coherence tomography at baseline and at every visit posttreatment, while fluorescein angiography was done at baseline and at the discretion of the physician thereafter...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29137959/moving-from-clinic-to-home-what-the-future-holds-for-ophthalmic-telemedicine
#6
Nancy M Holekamp
PURPOSE: To describe the expanding role of telemedicine in healthcare, the key criteria required for a successful device and program implementation, and the current and future role of home monitoring in ophthalmology. DESIGN: Expert perspective METHODS: Analysis with real-world interpretation of home monitoring technologies including current adoption barriers and expanded future demands based on demographic and market forces. RESULTS: Remote patient monitoring represents a paradigm shift in the way physicians care for patients...
November 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29136680/developing-prognostic-biomarkers-in-intermediate-age-related-macular-degeneration-their-clinical-use-in-predicting-progression
#7
REVIEW
Angelica Ly, Michael Yapp, Lisa Nivison-Smith, Nagi Assaad, Michael Hennessy, Michael Kalloniatis
Age-related macular degeneration is a common, complex and blinding eye disease. When early and intermediate levels of severity are detected in one or both eyes, there is a wide-ranging 0.4 to 53 per cent risk of progression to advanced disease in five years. In order to maximise visual outcomes for their patients, practising eye-care professionals must be able to stratify patients according to their risk of progression, intervene (for example by recommending smoking cessation or nutritional supplements and Amsler grid self-monitoring in intermediate disease) and monitor accordingly...
November 14, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29135888/exit-strategy-in-a-treat-and-extend-regimen-for-exudative-age-related-macular-degeneration
#8
Petra Arendt, Siqing Yu, Marion R Munk, Andreas Ebneter, Sebastian Wolf, Martin S Zinkernagel
PURPOSE: To evaluate the outcome of an exit strategy in a treat-and-extend regimen for neovascular age-related macular degeneration. METHODS: Five hundred and ninety-eight eyes of 488 patients with neovascular age-related macular degeneration receiving intravitreal anti-vascular endothelial growth factor injections according to a treat-and-extend regimen were included in this retrospective study. A treat-and-extend regimen with either interval extension by 2 weeks or shortening by 1 week was used...
November 9, 2017: Retina
https://www.readbyqxmd.com/read/29135798/vitrectomy-with-subretinal-tissue-plasminogen-activator-and-gas-tamponade-for-subfoveal-hemorrhage-prognostic-factors-and-clinical-outcomes
#9
David J A Plemel, Steven R J Lapere, Christopher J Rudnisky, Matthew T S Tennant
PURPOSE: To study the prognostic factors and clinical outcomes of patients who underwent pars plana vitrectomy, subretinal injection of tissue plasminogen activator, and gas tamponade for the treatment of subfoveal hemorrhage (SFH). METHODS: A retrospective noncomparative interventional case series. RESULTS: Seventy-eight eyes from 77 patients were included. A total of 84.6% of eyes developed SFH from age-related macular degeneration. Partial or complete displacement of the SFH was achieved in 91...
November 10, 2017: Retina
https://www.readbyqxmd.com/read/29135322/retinal-structure-in-pre-clinical-age-related-macular-degeneration
#10
S Nusinowitz, Y Wang, P Kim, S Habib, R Baron, Y Conley, M Gorin
PURPOSE: To determine, if there are identifiable retinal structural changes associated with genetic risk for age-related macular degeneration (AMD). MATERIALS AND METHODS: Seventy-three subjects (range 51.5 to 68.9 years) participated in this prospective study. Subjects were recruited based on the presence of a family history of AMD in one or both parents. All participants underwent a complete ophthalmic exam and imagery for staging of disease severity and genetic testing to assess genetic risk for AMD development...
November 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29133669/severe-gemella-haemolysans-endophthalmitis-following-ranibizumab-intravitreal-injection
#11
Silvia Olivia Salceanu, Sarah Levy, Richard Cunningham, Kwabena Frimpong-Ansah
Gemella haemolysans is a commensal of the upper respiratory tract that is rarely involved in ocular pathology. We present a unique case of endophthalmitis with negative cultures and positive 16s ribosomal ribonucleic acid gene sequencing showing G. haemolysans infection after an intravitreal ranibizumab injection for wet age-related macular degeneration.
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29133652/hospital-anxiety-and-depression-scale-assessment-of-100-patients-before-and-after-using-low-vision-care-a-prospective-study-in-a-tertiary-eye-care-setting
#12
Pukhraj Rishi, Ekta Rishi, Aditya Maitray, Ashutosh Agarwal, Sridevi Nair, Sarika Gopalakrishnan
PURPOSE: Assessment of anxiety and depression in patients attending low vision care (LVC) using Hospital Anxiety and Depression Scale (HADS). METHODS: In this prospective, observational study, 100 patients with best-corrected visual acuity (BCVA) worse than 6/18 in the better eye or limitation of field of vision to <10° from center of fixation were assessed on the depression and anxiety subscales of HADS questionnaire before and after LVC. HADS is a 14-item scale with seven items each for anxiety and depression subscales...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29133122/involvement-of-cannabinoid-receptor-type-2-in-light-induced-degeneration-of-cells-from-mouse-retinal-cell-line-in-vitro-and-mouse-photoreceptors-in-vivo
#13
Tomoyo Imamura, Kazuhiro Tsuruma, Yuki Inoue, Tomohiro Otsuka, Yuta Ohno, Shiho Ogami, Shinsaku Yamane, Masamitsu Shimazawa, Hideaki Hara
Earlier studies showed that the expressions of the agonists of the cannabinoid receptors are reduced in the vitreous humor of patients with age-related macular degeneration (AMD), and the cannabinoid type 2 receptor is present in the retinas of rats and monkeys. The purpose of this study was to determine whether the cannabinoid type 2 receptor is involved in the light-induced death of cultured 661W cells, an immortalized murine retinal cell line, and in the light-induced retinal degeneration in mice. Time-dependent changes in the expression and location of retinal cannabinoid type 2 receptor were determined by Western blot and immunostaining...
November 10, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/29132549/association-of-copy-number-variations-in-complement-factor-h-related-genes-among-age-related-macular-degenerative-subjects
#14
Norshakimah Md Bakri, Vasudevan Ramachandran, Hoo Fan Kee, Visvaraja Subrayan, Hazlita Isa, Nor Fariza Ngah, Nur Afiqah Mohamad, Ching Siew Mooi, Chan Yoke Mun, Patimah Ismail, Fazliana Ismail, Erma Suryana Sukiman, Wan Alia Wan Sulaiman
Age-related macular degeneration (AMD) is the most widely recognised cause of irreversible vision loss and previous studies have suggested that the advancement of wet AMD is influenced by both modifiable and non-modifiable elements. Single nucleotide polymorphism (SNPs) and copy number of variations (CNVs) have been associated with AMD in various populations, however the results are conflicting. Our aim is to determine the CNVs of Complement Factor H-Related genes among Malaysian subjects with wet AMD. 130 patients with wet AMD and 120 healthy controls were included in this research...
December 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29132135/increased-th1-th17-responses-contribute-to-low-grade-inflammation-in-age-related-macular-degeneration
#15
Jiajia Chen, Wenzhan Wang, Qiuming Li
BACKGROUND/AIMS: Age-related macular degeneration (AMD) is the primary cause of senior blindness in developed countries. Mechanisms underlying initiation and development of AMD remained known. METHODS: We examined the CD4+ T cell compartments and their functions in AMD patients. RESULTS: AMD patients presented significantly higher frequencies of interferon (IFN)-γ-expressing and interleukin (IL)-17-expressing CD4+ T cells than healthy controls...
November 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29131696/risk-factors-for-discontinuation-of-treatment-for-neovascular-age-related-macular-degeneration
#16
Inger Westborg, Aldana Rosso
PURPOSE: To investigate risk factors for treatment discontinuation for neovascular age-related macular degeneration (nAMD). METHODS: Data from the Swedish Macula Register and the Skåne Healthcare Register are reported on the treatment received by 932 nAMD patients diagnosed 2013-2015. Treatment discontinuation is defined as having a termination visit or lacking a control or treatment visit during the period of 10-14 months after the diagnostic visit. The risk of treatment discontinuation during the first year is estimated using a Poisson model and a classification tree...
November 13, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/29131493/gaming-to-improve-vision-21-st-century-self-monitoring-for-patients-with-age-related-macular-degeneration
#17
Hessom Razavi, Elizabeth Baglin, Pyrawy Sharangan, Emily Caruso, Nicole Tindill, Susan Griffin, Robyn Guymer
IMPORTANCE: Improved vision self-monitoring tools are required for people at risk of neovascular complications from age related macular degeneration (AMD). BACKGROUND: To report the self-monitoring habits of participants with intermediate AMD using the Amsler grid chart, and the use of personal electronic devices and gameplay in this over 50 year old cohort. DESIGN: Single-centre descriptive study carried out at the Centre for Eye Research (CERA), Melbourne, Australia...
November 13, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29130626/age-related-macular-degeneration-using-morphological-predictors-to-modify-current-treatment-protocols
#18
REVIEW
Mohammed Ashraf, Ahmed Souka, Ron A Adelman
To assess predictors of treatment response in neovascular age-related macular degeneration (AMD) in an attempt to develop a patient-centric treatment algorithm. We conducted a systematic search using PubMed, EMBASE and Web of Science for prognostic indicators/predictive factors with the key words: 'age related macular degeneration', 'neovascular AMD', 'choroidal neovascular membrane (CNV)', 'anti-vascular endothelial growth factor (anti-VEGF)', 'aflibercept', 'ranibizumab', 'bevacizumab', 'randomized clinical trials', 'post-hoc', 'prognostic', 'predictive', 'response' 'injection frequency, 'treat and extend (TAE), 'pro re nata (PRN)', 'bi-monthly' and 'quarterly'...
November 11, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29127134/radiation-retinopathy-treated-successfully-with-aflibercept
#19
Pakinee Pooprasert, Tafadzwa Young-Zvandasara, Ayad Al-Bermani
Aflibercept (aflibercept) is a novel anti-vascular endothelial growth factor drug indicated for wet age-related macular degeneration and macular oedema secondary to retinal vein occlusion and diabetic macular oedema. While only newly introduced on the market, it is growing in popularity and over 5.5 million doses have been prescribed worldwide. Due to its versatile mechanism, it is indicated for numerous eye pathologies, and in particular, has been adapted to treat various types of retinopathy. To our knowledge, this is the first case report of solely using aflibercept to treat cystoid macular oedema in radiation retinopathy...
November 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29125972/a-biolayer-interferometry-based-enzyme-linked-aptamer-sorbent-assay-for-real-time-and-highly-sensitive-detection-of-pdgf-bb
#20
Shunxiang Gao, Xin Zheng, Jihong Wu
Accurate, fast and sensitive detection of disease-specific protein biomarkers, especially in blood, urine, or other bodily fluids, is an important approach to achieve early disease diagnosis. Platelet-derived growth factor-BB (PDGF-BB), a widely used biomarker, is involved in a substantial number of serious diseases, such as hepatic fibrosis, atherosclerosis, age-related macular degeneration and diabetic eye disease and is often over-expressed in human malignant tumors. Therefore, the development of sensitive and specific detection methods for PDGF-BB is of great importance for the early diagnosis of disease and assessments of patient recovery...
November 7, 2017: Biosensors & Bioelectronics
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