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https://www.readbyqxmd.com/read/28093579/progression-of-transsynaptic-retinal-degeneration-with-spectral-domain-optical-coherence-tomography
#1
Stephen G Schwartz, Armando Monroig, Harry W Flynn
PURPOSE: To illustrate the progression of retrograde transsynaptic retinal degeneration using spectral- domain optical coherence tomography (SD-OCT). OBSERVATIONS: A 60 year-old man with a stroke was followed over a 17-month period using SD-OCT of the macula, ganglion cell layer (GCC), and retinal nerve fiber layer. Transsynaptic retinal degeneration progressed over this time. CONCLUSIONS AND IMPORTANCE: Retrograde transsynaptic retinal degeneration may occur in patients with homonymous visual field loss caused by post-geniculate neurologic disease...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/28091428/refractive-aim-and-visual-outcome-after-phacoemulsification-a-2-year-review-from-a-tertiary-private-eye-hospital-in-sub-saharan-africa
#2
O Oderinlo, A O Hassan, F O Oluyadi, A O Ogunro, O N Okonkwo, M O Ulaikere, O Ashano
AIM: To review the short-term visual outcome of phacoemulsification in adults with uncomplicated cataracts in Eye Foundation Hospital, Lagos, Nigeria. MATERIALS AND METHODS: A retrospective review of records of patients that had phacoemulsification between January 2012 and December 2013 in Eye Foundation Hospital, Lagos, Nigeria, was done. Preoperative visual acuity, refractive aim, intraoperative complications, postoperative unaided, and best-corrected visual acuity at 1 and 3 months were analyzed...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28060400/retinal-detachment-in-a-combined-case-of-stickler-syndrome-and-x-linked-retinoschisis
#3
Neesurg S Mehta, Nicolas A Yannuzzi, Ryan Young, Andrew J McClellan, Sarah P Read, Audina M Berrocal
A 12-year-old boy presented with a total rhegmatogenous retinal detachment and a giant retinal tear in the right eye. Clinical examination, optical coherence tomography, and fundus images showed an optically empty vitreous, lattice degeneration, and retinoschisis of the macula. Genetic testing revealed mutations in the COL2A1 and RS1 genes, confirming a dual diagnosis of Stickler syndrome and X-linked retinoschisis, respectively. This represents the first published account of a patient with both Stickler syndrome and X-linked retinoschisis...
January 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28060148/short-term-safety-of-2-mg-intravitreal-ziv-aflibercept
#4
Jay Chhablani, Chintan Jethalal Dedhia, Hari K Peguda, Michael Stewart
PURPOSE: To evaluate the safety of single intravitreal 2 mg ziv-aflibercept (0.08 mL) injections for the treatment of choroidal neovascular membranes (CNVM). METHODS: Eyes with choroidal neovascular membranes because of several conditions each received single intravitreal injections of 2 mg ziv-aflibercept (0.08 mL). Comprehensive ophthalmic examinations and detailed systemic evaluations were performed at baseline and Days 1, 7, and 30 after injections. Standard electroretinography was performed at baseline and Day 30...
January 2, 2017: Retina
https://www.readbyqxmd.com/read/28058163/clinical-features-and-course-of-patients-with-peripheral-exudative-hemorrhagic-chorioretinopathy
#5
Zafer Cebeci, Yasemin Dere, Şerife Bayraktar, Samuray Tuncer, Nur Kır
OBJECTIVES: To evaluate the clinical characteristics of patients who were followed in our clinic with the diagnosis of peripheral exudative hemorrhagic chorioretinopathy (PEHC). MATERIALS AND METHODS: Medical records of 12 patients who were diagnosed with PEHC in İstanbul University İstanbul Faculty of Medicine, Department of Ophthalmology between July 2006 and June 2014 were reviewed retrospectively. RESULTS: This study included 21 eyes of 12 patients...
October 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28045789/imaging-and-measurement-of-the-preretinal-space-in-vitreomacular-adhesion-and-vitreomacular-traction-by-a-new-spectral-domain-optical-coherence-tomography-analysis
#6
Marcin Stopa, Elżbieta Marciniak, Piotr Rakowicz, Agnieszka Stankiewicz, Tomasz Marciniak, Adam Dąbrowski
PURPOSE: To evaluate a new method for volumetric imaging of the preretinal space (also known as the subhyaloid, subcortical, or retrocortical space) and investigate differences in preretinal space volume in vitreomacular adhesion (VMA) and vitreomacular traction (VMT). METHODS: Nine patients with VMA and 13 with VMT were prospectively evaluated. Automatic inner limiting membrane line segmentation, which exploits graph search theory implementation, and posterior cortical vitreous line segmentation were performed on 141 horizontal spectral domain optical coherence tomography B-scans per patient...
December 30, 2016: Retina
https://www.readbyqxmd.com/read/28018716/machine-learning-based-detection-of-age-related-macular-degeneration-amd-and-diabetic-macular-edema-dme-from-optical-coherence-tomography-oct-images
#7
Yu Wang, Yaonan Zhang, Zhaomin Yao, Ruixue Zhao, Fengfeng Zhou
Non-lethal macular diseases greatly impact patients' life quality, and will cause vision loss at the late stages. Visual inspection of the optical coherence tomography (OCT) images by the experienced clinicians is the main diagnosis technique. We proposed a computer-aided diagnosis (CAD) model to discriminate age-related macular degeneration (AMD), diabetic macular edema (DME) and healthy macula. The linear configuration pattern (LCP) based features of the OCT images were screened by the Correlation-based Feature Subset (CFS) selection algorithm...
December 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/28003780/aflibercept-in-refractory-wet-amd-treated-with-ranibizumab-anatomical-and-visual-outcome
#8
Sleiman Abou-Ltaif
PURPOSE: To assess the anatomical outcome of patients with exudative age-related macular degeneration resistant to ranibizumab treated with aflibercept. METHOD: Prospective, interventional, case series, where we treated a group of patients deemed resistant to Ranibizumab after 6 months of persistence of intra- or subretinal fluid despite continuous treatment. RESULTS: The study included 17 patients, 3 males and 14 females. The average males age was 85 (range 83-87), and that of females was 79...
October 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/27960586/long-term-outcomes-in-patients-with-neovascular-age-related-macular-degeneration-who-maintain-dry-macula-after-three-monthly-ranibizumab-injections
#9
Kyung Min Kim, Jae Hui Kim, Young Suk Chang, Jong Woo Kim, Chul Gu Kim
PURPOSE: To evaluate long-term changes in visual acuity and retinal microstructure in patients with neovascular age-related macular degeneration (AMD) who had maintained dry macula after initial treatment. METHODS: This retrospective observational study included 55 eyes that were diagnosed with neovascular AMD, were treated with three monthly ranibizumab injections, and maintained dry macula during a two-year follow-up. Best-corrected visual acuity (BCVA) at three months and at the final follow-up were compared, and the degree of visual improvement was compared between eyes with and without improvement of the ellipsoid zone...
December 14, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27826921/exosomal-microrna-discovery-in-age-related-macular-degeneration
#10
Hanan Elshelmani, Sweta Rani
Age-related macular degeneration (AMD) is a common condition causing progressive visual impairment, leading to irreversible blindness. Existing diagnostic tools for AMD are limited to clinical signs in the macula and the visual assessment of the patient. The presence of circulating microRNAs (miRNAs) in the peripheral circulatory system with potential as diagnostic, prognostic and/or predictive biomarkers has been reported in a number of conditions/diseases. miRNAs are key regulators of several biological processes, and miRNA dysregulation has been linked with numerous diseases, most remarkably cancer...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27794427/choriocapillaris-non-perfusion-is-associated-with-poor-visual-acuity-in-eyes-with-reticular-pseudodrusen
#11
Peter L Nesper, Brian T Soetikno, Amani A Fawzi
PURPOSE: To study choriocapillaris blood flow in age-related macular degeneration (AMD) using optical coherence tomography angiography (OCTA) and study its correlation to vision (VA) in eyes with reticular pseudodrusen (RPD) versus those with drusen without RPD (drusen). DESIGN: Cross-sectional study METHODS: Patients with either drusen or RPD in early AMD underwent OCTA imaging of the superior, inferior, and/or nasal macula. We quantified "percent choriocapillaris area of non-perfusion" (PCAN) in eyes with RPD versus those with drusen...
October 26, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27782329/complement-in-removal-of-the-dead-balancing-inflammation
#12
REVIEW
Myriam Martin, Anna M Blom
Recognition and removal of apoptotic and necrotic cells must be efficient and highly controlled to avoid excessive inflammation and autoimmune responses to self. The complement system, a crucial part of innate immunity, plays an important role in this process. Thus, apoptotic and necrotic cells are recognized by complement initiators such as C1q, mannose binding lectin, ficolins, and properdin. This triggers complement activation and opsonization of cells with fragments of C3b, which enhances phagocytosis and thus ensures silent removal...
November 2016: Immunological Reviews
https://www.readbyqxmd.com/read/27780174/clinical-spectrum-of-macular-foveal-capillaries-evaluated-with-optical-coherence-tomography-angiography
#13
Maria V Cicinelli, Adriano Carnevali, Alessandro Rabiolo, Lea Querques, Ilaria Zucchiatti, Vincenzo Scorcia, Francesco Bandello, Giuseppe Querques
PURPOSE: To describe macular-foveal capillaries (MFC) by means of optical coherence tomography angiography and to identify the clinical spectrum of this angiographic feature. METHODS: Patients with MFC presenting at the Medical Retina & Imaging Unit of the Department of Ophthalmology, University Vita-Salute San Raffaele in Milan were recruited. Patients underwent a complete ophthalmologic examination that included slit-lamp examination, fundus examination, measurement of best-corrected visual acuity, fundus autofluorescence, and spectral-domain optical coherence tomography (Spectralis HRA + OCT; Heidelberg Engineering, Heidelberg, Germany)...
July 12, 2016: Retina
https://www.readbyqxmd.com/read/27776188/analysis-of-macular-drusen-and-blood-test-results-in-945-macaca-fascicularis
#14
Koji M Nishiguchi, Yu Yokoyama, Yusuke Fujii, Kosuke Fujita, Yusuke Tomiyama, Ryo Kawasaki, Toshinori Furukawa, Fumiko Ono, Nobuhiro Shimozawa, Mutsumi Togo, Michihiro Suzuki, Toru Nakazawa
Age-dependent formation of macular drusen caused by the focal accumulation of extracellular deposits beneath the retinal pigment epithelium precede the development of age-related macular degeneration (AMD), one of the leading causes of blindness worldwide. It is established that inflammation contributes to the pathogenesis of drusen and AMD. However, development of a preemptive therapeutic strategy targeting macular drusen and AMD has been impeded by the lack of relevant animal models because most laboratory animals lack macula, an anatomic feature present only in humans and a subset of monkeys...
2016: PloS One
https://www.readbyqxmd.com/read/27768640/intravitreal-dexamethasone-implant-as-adjuvant-treatment-for-bevacizumab-and-ranibizumab-resistant-neovascular-age-related-macular-degeneration-a-prospective-pilot-study
#15
Anita Barikian, Haytham Salti, Ammar Safar, Ziyad R Mahfoud, Ziad F Bashshur
PURPOSE: To study the benefit of intravitreal dexamethasone implant in the management of neovascular age-related macular degeneration resistant to bevacizumab and ranibizumab. METHODS: Patients with persistent macular fluid on optical coherence tomography despite monthly treatment with at least three consecutive bevacizumab injections followed by at least three ranibizumab injections were prospectively enrolled. A single dexamethasone implant was administered followed by intravitreal ranibizumab 1 week later...
October 20, 2016: Retina
https://www.readbyqxmd.com/read/27660164/efficacy-of-intravitreal-aflibercept-in-japanese-patients-with-exudative-age-related-macular-degeneration
#16
Masaaki Saito, Mariko Kano, Kanako Itagaki, Tetsuju Sekiryu
PURPOSE: To clarify the efficacy of aflibercept for treating exudative age-related macular degeneration (AMD). METHODS: We prospectively studied 47 eyes with AMD. Forty-seven patients (mean age 72.2 years) received three consecutive monthly intravitreal aflibercept injections followed by an injection every 2 months until 12 months. The primary outcome was the 12-month visual results compared with baseline; the secondary outcomes were the prevalence of geography atrophy (GA), a dry macula at month 12, and anatomic changes on optical coherence tomography...
September 22, 2016: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27631087/ex-vivo-confocal-spectroscopy-of-autofluorescence-in-age-related-macular-degeneration
#17
Joel Kaluzny, Patryk Purta, Zach Poskin, Jeremy D Rogers, Amani A Fawzi
PURPOSE: We investigated the autofluorescence (AF) signature of the microscopic features of retina with age-related macular degeneration (AMD) using 488 nm excitation. METHODS: The globes of four donors with AMD and four age-matched controls were embedded in paraffin and sectioned through the macula. Sections were excited using a 488 nm argon laser, and the AF emission was captured using a laser scanning confocal microscope (496-610 nm, 6 nm resolution). The data cubes were then analyzed to compare peak emission spectra between the AMD and the controls...
2016: PloS One
https://www.readbyqxmd.com/read/27587716/choroidal-thickness-in-non-neovascular-versus-neovascular-age-related-macular-degeneration-a-fellow-eye-comparative-study
#18
Andrea Govetto, David Sarraf, Marta S Figueroa, Luisa Pierro, Mario Ippolito, Grégoire Risser, Francesco Bandello, Jean Pierre Hubschman
PURPOSE: To investigate the possible differences in choroidal thickness (CT) between non-neovascular (NNV) and neovascular (NV) age-related macular degeneration (AMD). METHODS: A retrospective, observational chart review of consecutive patients diagnosed with NNV AMD in one eye and with NV AMD in the fellow eye was carried out. NNV AMD was classified into four subgroups according to the Beckman Initiative for Macular Research AMD Classification Committee Meeting...
September 1, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27581213/immunolocalisation-pattern-of-complex-i-v-in-ageing-human-retina-correlation-with-mitochondrial-ultrastructure
#19
Tapas Chandra Nag, Shashi Wadhwa
Earlier studies reported accumulation of mitochondrial DNA mutations in ageing and age-related macular degeneration. To know about the mitochondrial status with age, we examined immunoreactivity (IR) to markers of mitochondria (anti-mitochondrial antibody and voltage-dependent anion channel-1) and complex I-V (that mediate oxidative phosphorylation, OXPHOS) in donor human retinas (age: 19-94years; N=26; right eyes). In all samples, at all ages, IR to anti-mitochondrial antibody and voltage-dependent anion channel-1 was prominent in photoreceptor cells...
August 28, 2016: Mitochondrion
https://www.readbyqxmd.com/read/27572114/mapping-rare-deleterious-mutations-in-factor-h-association-with-early-onset-drusen-burden-and-lower-antigenic-levels-in-familial-amd
#20
Erin K Wagner, Soumya Raychaudhuri, Mercedes B Villalonga, Anuja Java, Michael P Triebwasser, Mark J Daly, John P Atkinson, Johanna M Seddon
The genetic architecture of age-related macular degeneration (AMD) involves numerous genetic variants, both common and rare, in the coding region of complement factor H (CFH). While these variants explain high disease burden in some families, they fail to explain the pathology in all. We selected families whose AMD was unexplained by known variants and performed whole exome sequencing to probe for other rare, highly penetrant variants. We identified four rare loss-of-function variants in CFH associated with AMD...
2016: Scientific Reports
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