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Global ophthalmology

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https://www.readbyqxmd.com/read/28809847/genome-wide-expression-datasets-of-anti-vegf-and-dexamethasone-treatment-of-angiogenesis-in-the-rat-cornea
#1
Anthony Mukwaya, Pierfrancesco Mirabelli, Anton Lennikov, Maria Xeroudaki, Mira Schaupper, Beatrice Peebo, Neil Lagali
Therapeutics against pathologic new blood vessel growth, particularly those targeting vascular endothelial growth factor (VEGF) are of enormous clinical interest. In the eye, where anti-VEGF agents are in widespread clinical use for treating retinal and corneal blindness, only partial or transient efficacy and resistance to anti-VEGF agents are among the major drawbacks. Conversely, corticosteroids have long been used in ophthalmology for their potency in suppressing inflammation and angiogenesis, but their broad biological activity can give rise to side effects such as glaucoma and cataract...
August 15, 2017: Scientific Data
https://www.readbyqxmd.com/read/28802687/-oct-topographic-characteristics-of-the-optic-nerve-in-patients-clinically-suspected-to-have-large-optic-disc-cupping-in-togo
#2
N Maneh, K D Ayena, K Vonor, K B Nonon Saa, K M Amedome, K B Dzidzinyo, C B Ikessieba, K R Kuaovi, M Banla, K P Balo
PURPOSE: To describe topographic characteristics of optic discs clinically suspected of large cupping. MATERIALS AND METHODS: This is retrospective study conducted from the January 2 to December 31 on the OCT registry and data base of a private ophthalmologic center in Lomé (Togo). We included records of patients with large cupping - CDR (cup-to-disc ratio) ≥ 0.4 -clinically observed and having undergone OCT-optic disc analysis. RESULTS: Three hundred and thirty-five patients (619 eyes) were studied, with a mean age of 41...
August 9, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28783458/tele-ophthalmology-for-age-related-macular-degeneration-and-diabetic-retinopathy-screening-a-systematic-review-and-meta-analysis
#3
Atsushi Kawaguchi, Noha Sharafeldin, Aishwarya Sundaram, Sandy Campbell, Matthew Tennant, Christopher Rudnisky, Ezekiel Weis, Karim F Damji
BACKGROUND: To synthesize high-quality evidence to compare traditional in-person screening and tele-ophthalmology screening. METHODS: Only randomized controlled trials (RCTs) were included in this systematic review and meta-analysis. The intervention of interest was any type of tele-ophthalmology, including screening of diseases using remote devices. Studies involved patients receiving care from any trained provider via tele-ophthalmology, compared with those receiving equivalent face-to-face care...
August 7, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28742085/clinically-severe-cacna1a-alleles-affect-synaptic-function-and-neurodegeneration-differentially
#4
Xi Luo, Jill A Rosenfeld, Shinya Yamamoto, Tamar Harel, Zhongyuan Zuo, Melissa Hall, Klaas J Wierenga, Matthew T Pastore, Dennis Bartholomew, Mauricio R Delgado, Joshua Rotenberg, Richard Alan Lewis, Lisa Emrick, Carlos A Bacino, Mohammad K Eldomery, Zeynep Coban Akdemir, Fan Xia, Yaping Yang, Seema R Lalani, Timothy Lotze, James R Lupski, Brendan Lee, Hugo J Bellen, Michael F Wangler
Dominant mutations in CACNA1A, encoding the α-1A subunit of the neuronal P/Q type voltage-dependent Ca2+ channel, can cause diverse neurological phenotypes. Rare cases of markedly severe early onset developmental delay and congenital ataxia can be due to de novo CACNA1A missense alleles, with variants affecting the S4 transmembrane segments of the channel, some of which are reported to be loss-of-function. Exome sequencing in five individuals with severe early onset ataxia identified one novel variant (p.R1673P), in a girl with global developmental delay and progressive cerebellar atrophy, and a recurrent, de novo p...
July 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28708816/determination-of-the-minimal-clinically-important-difference-of-the-university-of-north-carolina-dry-eye-management-scale
#5
Christopher J Hwang, Reeves Ellis, Richard M Davis, Sue Tolleson-Rinehart
PURPOSE: To establish an initial estimation of the MCID of the University of North Carolina Dry Eye Management Scale (UNC DEMS) and assess its association with patient perceptions of symptom change. METHODS: Thirty-three patients (33.3% men, 67.7% women, mean age 60.5 yrs) with previous DEMS scores were recruited from a UNC ophthalmology clinic in spring 2014. We used anchor-based methods, categorizing important symptom change, to compare the change in the DEMS scores across visits to patient assessments of change; linear regression coefficients estimated the MCID...
September 2017: Cornea
https://www.readbyqxmd.com/read/28623165/ocular-effects-of-zika-virus-a-review
#6
REVIEW
Maria Carolina Marquezan, Camila V Ventura, Jeanne S Sheffield, William Christopher Golden, Revaz Omiadze, Rubens Belfort, William May
Zika virus was considered an innocent pathogen while restricted to the African and Asian population; however, after reaching the Americas in March 2015, it became a global threat. Despite usually causing mild or no symptoms in infected adults, Zika virus displays a different behavior toward fetuses. When infected during gestation, fetuses have their immature neural cells killed by the virus and consequently have devastating findings at birth. In the past year the drastic effects of Zika virus infection in newborns include neurological, ophthalmological, audiological, and skeletal abnormalities...
June 13, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28607759/a-composite-measure-to-explore-visual-disability-in-primary-progressive-multiple-sclerosis
#7
Valentina Poretto, Maria Petracca, Catarina Saiote, Enricomaria Mormina, Jonathan Howard, Aaron Miller, Fred D Lublin, Matilde Inglese
BACKGROUND: Optical coherence tomography (OCT) and magnetic resonance imaging (MRI) can provide complementary information on visual system damage in multiple sclerosis (MS). OBJECTIVES: The objective of this paper is to determine whether a composite OCT/MRI score, reflecting cumulative damage along the entire visual pathway, can predict visual deficits in primary progressive multiple sclerosis (PPMS). METHODS: Twenty-five PPMS patients and 20 age-matched controls underwent neuro-ophthalmologic evaluation, spectral-domain OCT, and 3T brain MRI...
April 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/28584935/evaluation-of-optic-nerve-head-parameters-and-retinal-nerve-fiber-layer-thickness-in-axial-myopia-using-sd-oct
#8
Heba Radi AttaAllah, Ismail Ahmed Nagib Omar, Ahmed Shawkat Abdelhalim
INTRODUCTION: The purpose of this research was to study the effect of increased axial myopia, in non-glaucomatous eyes, and its correlation with ONH parameters, and RNFL thickness, using Cirrus HD 4000 SD-OCT. METHODS: The myopia group included 86 eyes of 86 patients, while the control group involved 92 eyes of 92 patients, attending the Ophthalmology Outpatient Clinic in Minia University Hospital, between November 2013 and March 2015. ONH parameters and peripapillary RNFL thickness measurement were evaluated by using SD-OCT, selecting the standard optic disc cube 200 × 200...
June 5, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28549094/a-novel-dominant-mutation-in-sag-the-arrestin-1-gene-is-a-common-cause-of-retinitis-pigmentosa-in-hispanic-families-in-the-southwestern-united-states
#9
Lori S Sullivan, Sara J Bowne, Daniel C Koboldt, Elizabeth L Cadena, John R Heckenlively, Kari E Branham, Dianna H Wheaton, Kaylie D Jones, Richard S Ruiz, Mark E Pennesi, Paul Yang, David Davis-Boozer, Hope Northrup, Vsevold V Gurevich, Rui Chen, Mingchu Xu, Yumei Li, David G Birch, Stephen P Daiger
Purpose: To identify the causes of autosomal dominant retinitis pigmentosa (adRP) in a cohort of families without mutations in known adRP genes and consequently to characterize a novel dominant-acting missense mutation in SAG. Methods: Patients underwent ophthalmologic testing and were screened for mutations using targeted-capture and whole-exome next-generation sequencing. Confirmation and additional screening were done by Sanger sequencing. Haplotypes segregating with the mutation were determined using short tandem repeat and single nucleotide variant polymorphisms...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28549018/intimate-partner-violence-in-ophthalmology-a-global-call-to-action
#10
Ali R Cohen, Lynette M Renner, Erin M Shriver
PURPOSE OF REVIEW: Intimate partner violence (IPV) is a leading cause of death and disability worldwide. Despite increasing public awareness of IPV, little information is available regarding the prevalence, associated injury patterns, and impact of IPV as a mechanism of ocular and orbital trauma. The purpose of this review is to summarize the literature regarding the impact of IPV in ophthalmology and provide team members with guidance on appropriate practices for screening and referral...
April 25, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28438271/how-does-an-inventor-find-an-investor-or-partner-raising-funds-to-start-a-company
#11
Rudy A Mazzocchi
Rudy Mazzocchi has over 25 years of senior executive management, technology and intellectual property development, and financing experience in the medical-technology/biotechnology industries. He serves currently as cofounder/chief executive officer of ELENZA, Inc, an ophthalmology company that has developed an electro-active, autofocusing, implantable lens; executive chairman of Establishment Labs; executive chairman of LAFORGE Optical; and executive chairman of OptiSTENT, Inc. He served previously as managing director of Accuitive Medical Ventures and The Innovation Factory; cofounder/chief executive officer of Image-Guided NEUROLOGICS, acquired by Medtronic in 2005; and founding chief executive officer of MICROVENA Corporation, which became "eV3," acquired by Covidien...
May 2017: Surgery
https://www.readbyqxmd.com/read/28434885/early-performance-on-an-eye-surgery-simulator-predicts-subsequent-resident-surgical-performance
#12
Ramak Roohipoor, Mehdi Yaseri, Amir Teymourpour, Carolyn Kloek, John B Miller, John I Loewenstein
OBJECTIVE: To examine early performance on an eye surgery simulator and its relationship to subsequent live surgical performance in a single large residency program. DESIGN: Retrospective study. SETTING: Massachusetts Eye and Ear, Harvard Medical School, Department of Ophthalmology. METHODS: In a retrospective study, we compared performance of 30 first-year ophthalmology residents on an eye surgery simulator to their surgical skills as third-year residents...
April 20, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28393035/retinal-ganglion-cell-complex-changes-using-spectral-domain-optical-coherence-tomography-in-diabetic-patients-without-retinopathy
#13
Ahmed I Hegazy, Rasha H Zedan, Tamer A Macky, Soheir M Esmat
AIM: To assess the ganglion cell complex (GCC) thickness in diabetic eyes without retinopathy. METHODS: Two groups included 45 diabetic eyes without retinopathy and 21 non diabetic eyes. All subjects underwent full medical and ophthalmological history, full ophthalmological examination, measuring GCC thickness and central foveal thickness (CFT) using the RTVue(®) spectral domain-optical coherence tomography (SD-OCT), and HbA1C level. RESULTS: GCC focal loss volume (FLV%) was significantly more in diabetic eyes (22...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28384377/implantation-of-two-second-generation-trabecular-micro-bypass-stents-and-topical-travoprost-in-open-angle-glaucoma-not-controlled-on-two-preoperative-medications-18-month-follow-up
#14
John Berdahl, Lilit Voskanyan, Jonathan S Myers, Dana M Hornbeak, Jane Ellen Giamporcaro, L Jay Katz, Thomas W Samuelson
IMPORTANCE: Additional data are sought regarding treatment options for glaucoma, a major cause of global blindness. BACKGROUND: The study assessed outcomes following standalone implantation of 2 second-generation trabecular micro-bypass stents and postoperative topical prostaglandin in eyes with open-angle glaucoma (OAG) not controlled on 2 preoperative medications. DESIGN: Prospective, nonrandomized, open-label study at a tertiary-care ophthalmology centre...
April 6, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28341010/history-and-development-of-ophthalmology-in-taiwan
#15
REVIEW
Yu-Chih Hou, Gale A Oren, Muh-Shy Chen, Fung-Rong Hu
Western medicine was first introduced to Taiwan by medical missionaries in the mid-19(th) century. Modernization of medicine was systematically transplanted to Taiwan in the Japanese colonial period, and ophthalmology was established third among hospital departments, following internal medicine and surgery. Dr Hidetaka Yamaguchi, an ophthalmologist, was the first head of the Taihoku Hospital, later known as National Taiwan University Hospital (NTUH; Taipei, Taiwan). Ophthalmologists during the colonial period conducted studies on tropical and infectious eye diseases...
December 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28301340/microperimetry-in-best-vitelliform-macular-dystrophy
#16
Maurizio Battaglia Parodi, Niccolò Castellino, Pierluigi Iacono, Itay Chowers, Theodoros Empeslidis, Michaella Goldstein, Francesco Bandello
PURPOSE: To investigate retinal sensitivity in eyes with all the clinical stages of Best vitelliform macular dystrophy (VMD). METHODS: Thirty-two patients affected by VMD in subclinical, vitelliform, pseudohypopyon, vitelliruptive, and atrophic stages were enrolled in this prospective cross-sectional study. Patients underwent a complete ophthalmologic examination, including determination of best-corrected visual acuity (BCVA), staging of the disease (Gass's classification), and microperimetry by means of the macular integrity assessment microperimeter...
March 15, 2017: Retina
https://www.readbyqxmd.com/read/28260359/-study-of-retinal-microvascular-perfusion-alteration-and-structural-damage-at-macular-region-in-primary-open-angle-glaucoma-patients
#17
H Xu, X M Kong
Objective: To investigate the alteration of retinal microcirculation and structural damage at macular region and evaluate their associations in primary open angle glaucoma (POAG) eyes. Methods: Cross-sectional study. Fifty-nine POAG patients (male/femal=35/24) were recruited from July 2015 to December 2015 in Eye, Ear, Nose and Throat Hospital of Fudan University. Twenty-eight eyes of early-stage POAG group (EG), 11 eyes of moderate-stage POAG group (MG) and 20 eyes of severe-stage POAG group (SG) were enrolled in this study...
February 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28212157/current-approaches-to-myopia-control
#18
REVIEW
Seo Wei Leo
PURPOSE OF REVIEW: Myopia is a global problem, being particularly prevalent in the urban areas of east and southeast Asia. In addition to the direct economic and social burdens, associated ocular complications may lead to substantial vision loss. With prevalence of myopia above 80% and high myopia over 20%, it is crucial to control myopia. The aim of this review to is provide an update on the interventions to slow the onset of myopia and retard its progression. RECENT FINDINGS: The epidemic of myopia is characterized by increasingly early onset, combined with high myopia progression rates...
May 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28161930/electronic-referrals-and-digital-imaging-systems-in-ophthalmology-a-global-perspective
#19
V Swetha E Jeganathan, H Nikki Hall, Roshini Sanders
Ophthalmology departments face intensifying pressure to expedite sight-saving treatments and reduce the global burden of disease. The use of electronic communication systems, digital imaging, and redesigned service care models is imperative for addressing such demands. The recently developed Scottish Eyecare Integration Project involves an electronic referral system from community optometry to the hospital ophthalmology department using National Health Service (NHS) email with digital ophthalmic images attached, via a virtual private network connection...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28145974/quantitative-analysis-of-optical-coherence-tomography-angiography-in-adult-onset-foveomacular-vitelliform-dystrophy
#20
Maurizio Battaglia Parodi, Alessandro Rabiolo, Maria Vittoria Cicinelli, Pierluigi Iacono, Francesco Romano, Francesco Bandello
PURPOSE: To quantify the foveal avascular zone area at superficial capillary plexus (SCP) and deep capillary plexus (DCP) and the global, parafoveal, and perifoveal vessel densities at SCP, DCP, and choriocapillaris using optical coherence tomography angiography in patients affected by adult-onset foveomacular vitelliform dystrophy (AOFVD). METHODS: Twenty eyes of 20 consecutive patients (10 females, 50%) with AOFVD and 20 eyes of 20 healthy controls presenting at the Department of Ophthalmology of San Raffaele Hospital, Milan, Italy were enrolled...
January 31, 2017: Retina
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