keyword
MENU ▼
Read by QxMD icon Read
search

Surgical retina

keyword
https://www.readbyqxmd.com/read/29044067/improvement-in-distance-and-near-visual-acuities-using-low-vision-devices-in-diabetic-retinopathy
#1
Sarika Gopalakrishnan, Aishwarya Muralidharan, Shwetha Chambayil Susheel, Rajiv Raman
PURPOSE: The aim of this study is to elucidate the causes and level of visual impairment (VI) in patients with different pathologies of diabetic retinopathy (DR) who presented to a low vision care (LVC) clinic, to analyze the type of distant and near devices prescribed to them and the visual benefits thereof. METHODS: A retrospective chart review was done for 100 consecutive patients with DR who were referred to the LVC clinic from June 2015 to June 2016. The reason for referral was assessed from the electronic medical records and available fundus photographs, fundus fluorescein angiograms, and optical coherence tomography images by a retina specialist...
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29034157/endoscope-assisted-vitrectomy-in-the-management-of-retinal-detachment-with-corneal-opacity
#2
Yu-Fang Huang, Chia-Jen Chang
A 51-year-old male who had suffered from right eye rhegmatogenous retinal detachment with proliferative vitreoretinopathy received surgical treatments which included the following procedures: lens extraction, scleral buckle, vitrectomy, membrane peeling, photocoagulation, and silicone oil injection. The presenting visual acuity of the right eye was light perception. Slit-lamp examination revealed corneal opacity without a visible fundus. B-scan ultrasonography revealed retinal detachment. Endoscope-assisted vitrectomy was then performed in December 2014...
July 2017: Taiwan Journal of Ophthalmology
https://www.readbyqxmd.com/read/29020427/cabbage-leaf-inverted-flap-ilm-peeling-for-macular-hole-a-novel-technique
#3
Ajay Aurora, Anisha Seth, Neeraj Sanduja
Large macular holes have poor surgical outcomes with conventional vitrectomy and internal limiting membrane (ILM) peeling surgery, but improved anatomical closure rates have been seen with an inverted ILM flap technique. Many studies have been reported with modifications in the original inverted ILM technique that help in better retention of the flap over the macular hole. The authors describe a new technique of inverted ILM flap in a case of chronic, large, full-thickness macular holes, in which multiple ILM flaps were inverted over each other and the hole-like cabbage leaves...
October 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29020422/a-modified-foveal-advancement-technique-in-the-treatment-of-persistent-large-macular-holes
#4
Gökhan Gurelik, Sabahattin Sul, Gaye Kılıç, Cemal Özsaygılı
BACKGROUND AND OBJECTIVE: To evaluate the outcomes of a new surgical technique on the closure of persistent large macular holes (MHs) PATIENTS AND METHODS:Data for 10 eyes of 10 patients who underwent surgical intervention for the treatment of large and persistent MHs were reviewed retrospectively. After entrance of the three-port transconjunctival 23-gauge sutureless vitrectomy instruments, a shallow perihole retinal detachment was formed by injecting a small amount of fluid with a 39-gauge /41-gauge subretinal cannula under the perihole (superior, temporal, and inferior sparing nasal bundle fibers) retina...
October 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29016453/in-vitro-flow-analysis-of-novel-double-cutting-open-port-ultrahigh-speed-vitrectomy-systems
#5
Claus Zehetner, Marion Moelgg, Emmanouil Bechrakis, Caroline Linhart, Nikolaos E Bechrakis
PURPOSE: To analyze the performance and flow characteristics of novel double-cutting, open-port, 23-, 25-, and 27-gauge ultrahigh-speed vitrectomy systems. METHODS: In vitro fluidic measurements were performed to assess the volumetric aspiration profiles of several vitrectomy systems in basic salt solution and egg white. RESULTS: Double-cutting open-port vitrectomy probes delivered stable aspiration flow rates that were less prone to flow variation affected by the cutting speed...
October 9, 2017: Retina
https://www.readbyqxmd.com/read/28992234/pharmacologic-management-of-diabetic-retinopathy
#6
Akiyoshi Uemura
Diabetic retinopathy (DR) is a leading cause of vision loss in working-age populations, primarily attributable to retinal vascular hyperpermeability, hypoperfusion, and neoangiogenesis. In the past decade, laser photocoagulation and surgical interventions to treat DR have been replaced by topical administrations of anti-vascular endothelial growth factor drugs and corticosteroids. Although these drugs have revolutionized clinical management of DR, their limited efficacy and adverse effects have raised an increasing demand for new drug development...
September 6, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28979359/external-ophthalmomyiasis-caused-by-lucilia-sericata-diptera-challiphoride-larva
#7
Roghayeh Norouzi, Arman Manochehri, Saman Zarrin
Myiasis is an animal or human pathogenic condition initiated by parasitic dipterous fly larvae feeding in the host's necrotic or living tissue. Here we report a case of external ophthalmomyiasis caused by Lucilia sericata in a 78-yr-old with a vascular tumor of the retina and surgery history, from Bijar City of Kurdistan Province, Iran in 2015. Associated symptoms included right eye pain with mucoid ocular discharge, headache, sensing the presence of a foreign body in the eye and itching. Examination revealed a L...
July 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28966797/toward-monocular-camera-guided-retinal-vein-cannulation-with-an-actively-stabilized-handheld-robot
#8
Shohin Mukherjee, Sungwook Yang, Robert A MacLachlan, Louis A Lobes, Joseph N Martel, Cameron N Riviere
In this paper we describe work towards retinal vessel cannulation using an actively stabilized handheld robot, guided by monocular vision. We employ a previously developed monocular camera based surface reconstruction method using automated laser beam scanning over the retina. We use the reconstructed plane to find a coordinate transform between the 2D image plane coordinate system and the global 3D frame. Within a hemispherical region around the target, we use motion scaling for higher precision. The contribution of this work is the homography matrix estimation using monocular vision and application of the previously developed laser surface reconstruction to Micron guided vein cannulation...
May 2017: IEEE International Conference on Robotics and Automation: ICRA: [proceedings]
https://www.readbyqxmd.com/read/28948190/restoring-vision-in-mice-with-retinal-degeneration-using-multicharacteristic-opsin
#9
Weldon Wright, Sivakumar Gajjeraman, Subrata Batabyal, Sanjay Pradhan, Sulagna Bhattacharya, Vasu Mahapatra, Ashutosh Tripathy, Samarendra Mohanty
Retinal degenerative diseases, such as retinitis pigmentosa (RP) and dry age-related macular degeneration, have led to loss of vision in millions of individuals. Currently, no surgical or medical treatment is available, although optogenetic therapies are in clinical development. We demonstrate vision restoration using multicharacteristics opsin (MCO1) in animal models with degenerated retina. MCO1 is reliably delivered to specific retinal cells via intravitreal injection of adeno-associated virus (vMCO1), leading to significant improvement in visually guided behavior conducted using a radial arm water maze...
October 2017: Neurophotonics
https://www.readbyqxmd.com/read/28928775/assessment-of-safety-and-functional-efficacy-of-stem-cell-based-therapeutic-approaches-using-retinal-degenerative-animal-models
#10
REVIEW
Tai-Chi Lin, Magdalene J Seiler, Danhong Zhu, Paulo Falabella, David R Hinton, Dennis O Clegg, Mark S Humayun, Biju B Thomas
Dysfunction and death of retinal pigment epithelium (RPE) and or photoreceptors can lead to irreversible vision loss. The eye represents an ideal microenvironment for stem cell-based therapy. It is considered an "immune privileged" site, and the number of cells needed for therapy is relatively low for the area of focused vision (macula). Further, surgical placement of stem cell-derived grafts (RPE, retinal progenitors, and photoreceptor precursors) into the vitreous cavity or subretinal space has been well established...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28905829/variation-in-the-vitreoretinal-configuration-of-stage-4-retinopathy-of-prematurity-in-photocoagulated-and-treatment-naive-eyes-undergoing-vitrectomy
#11
Salil Sharad Gadkari, Madan Deshpande
PURPOSE: We sought to document the difference in the vitreoretinal configuration of Stage 4 retinopathy of prematurity (ROP) in photocoagulated and treatment naive eyes undergoing vitrectomy and to correlate it with surgical complexity. METHODS: Consecutive eyes posted for vitrectomy with Stage 4 ROP were documented preoperatively using a RetCam for the presence of peripheral traction (PT), presence of central traction just outside the arcades, and presence of traction extending to the lens...
September 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28872643/tropism-of-engineered-and-evolved-recombinant-aav-serotypes-in-the-rd1-mouse-and-ex-vivo-primate-retina
#12
D G Hickey, T L Edwards, A R Barnard, M S Singh, S R de Silva, M E McClements, J G Flannery, M W Hankins, R E MacLaren
There is much debate on the adeno-associated virus (AAV) serotype that best targets specific retinal cell types and the route of surgical delivery-intravitreal or subretinal. This study compared three of the most efficacious AAV vectors known to date in a mouse model of retinal degeneration (rd1 mouse) and macaque and human retinal explants. GFP driven by a ubiquitous promoter was packaged into three AAV capsids: AAV2/8(Y733F), AAV2/2(quad Y-F) and AAV2/2(7m8). Overall AAV2/2(7m8) transduced the largest area of retina and resulted in the highest level of GFP expression, followed by AAV2/2(quad Y-F) and AAV2/8(Y733F)...
September 5, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28872517/favorable-outcome-in-coccidioides-endophthalmitis-a-combined-medical-and-surgical-treatment-approach
#13
Jennifer J Ling, Derek J Bays, George R Thompson, Ala Moshiri, Mark J Mannis
PURPOSE: To describe a case of Coccidioides endophthalmitis that resulted in a favorable visual outcome after a combined medical and surgical approach. METHODS: A 33-year-old previously healthy woman was referred for evaluation of dyspnea and left-sided vision loss, which began 3 months before, after a trip to Nevada. She was found to have a pulmonary cavitary lesion and fluffy white material in the anterior chamber. An aqueous and vitreous paracentesis grew Coccidioides species...
August 31, 2017: Cornea
https://www.readbyqxmd.com/read/28862256/rhegmatogenous-retinal-detachment-in-paediatric-patients-after-pars-plana-vitrectomy-and-sutured-scleral-fixated-intraocular-lenses
#14
P Sen, S I Shaikh, K Sreelakshmi
PurposeTo report the incidence rate, management, and surgical outcomes of rhegmatogenous retinal detachment (RRD) in children who underwent pars plana vitrectomy (PPV) with sutured scleral-fixated intraocular lens implantation (SSFIOL).Patients and methodsOf the 279 eyes of 230 children who underwent PPV with SSFIOL at a tertiary eye care centre, 16 eyes of 15 children developed RRD. Retrospective analysis of the surgical details of RRD, the structural and functional outcomes was done.ResultsOf the 279 eyes of 230 children who underwent PPV with SSFIOL, RRD was seen in 5...
September 1, 2017: Eye
https://www.readbyqxmd.com/read/28858193/utility-of-intraoperative-optical-coherence-tomography-in-acute-endophthalmitis
#15
Shigeharu Yaginuma, Makoto Inoue, Yuji Itoh, Hiroyuki Takahashi, Akito Hirakata
PURPOSE: To evaluate the efficacy of intraoperative optical coherence tomography (OCT) during vitrectomy for acute endophthalmitis. METHODS: The intraoperative and postoperative images of an 87-year-old woman with acute endophthalmitis after uncomplicated cataract surgery were analyzed. RESULTS: At presentation, the vision of the patient was 20/2000, and the preoperative OCT was unable to obtain clear images because of vitreous opacities. Intraoperative OCT showed that the inner retinal layer was hyperreflective because of diffuse retinal edema...
August 28, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28840163/restoring-vision-in-mice-with-retinal-degeneration-using-multicharacteristic-opsin
#16
Weldon Wright, Sivakumar Gajjeraman, Subrata Batabyal, Sanjay Pradhan, Sulagna Bhattacharya, Vasu Mahapatra, Ashutosh Tripathy, Samarendra Mohanty
Retinal degenerative diseases, such as retinitis pigmentosa (RP) and dry age-related macular degeneration, have led to loss of vision in millions of individuals. Currently, no surgical or medical treatment is available, although optogenetic therapies are in clinical development. We demonstrate vision restoration using multicharacteristics opsin (MCO1) in animal models with degenerated retina. MCO1 is reliably delivered to specific retinal cells via intravitreal injection of adeno-associated virus (vMCO1), leading to significant improvement in visually guided behavior conducted using a radial arm water maze...
October 2017: Neurophotonics
https://www.readbyqxmd.com/read/28834920/case-report-of-severe-proliferative-retinopathy-in-a-patient-with-congenital-lipodystrophy
#17
Boris Rosin, Tareq Jaouni
PURPOSE: A case report of a patient with severe proliferative retinopathy due to congenital lipodystrophy. METHODS: We reviewed the medical history, imaging, and surgical procedures of a 25-year-old woman with a history of congenital lipodystrophy, presenting with bilateral combined tractional and exudative retinal detachment, poorly controlled diabetes mellitus, and extreme dislipidemia. RESULTS: The patient underwent retinal detachment repair surgery both eyes...
August 21, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28829422/development-of-a-refined-protocol-for-trans-scleral-subretinal-transplantation-of-human-retinal-pigment-epithelial-cells-into-rat-eyes
#18
Cuiping Zhao, Nathan C Boles, Justine D Miller, Suzanne Kawola, Sally Temple, Richard J Davis, Jeffrey H Stern
Degenerative retinal diseases such as age-related macular degeneration (AMD) are the leading cause of irreversible vision loss worldwide. AMD is characterized by the degeneration of retinal pigment epithelial (RPE) cells, which are a monolayer of cells functionally supporting and anatomically wrapping around the neural retina. Current pharmacological treatments for the non-neovascular AMD (dry AMD) only slow down the disease progression but cannot restore vision, necessitating studies aimed at identifying novel therapeutic strategies...
August 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28827082/mfsd2a-promotes-endothelial-generation-of-inflammation-resolving-lipid-mediators-and-reduces-colitis%C3%A2-in%C3%A2-mice
#19
Federica Ungaro, Carlotta Tacconi, Luca Massimino, Paola Antonia Corsetto, Carmen Correale, Philippe Fonteyne, Andrea Piontini, Valeria Garzarelli, Francesca Calcaterra, Silvia Della Bella, Antonino Spinelli, Michele Carvello, Angela Maria Rizzo, Stefania Vetrano, Luciana Petti, Gionata Fiorino, Federica Furfaro, Domenico Mavilio, Krishna Rao Maddipati, Alberto Malesci, Laurent Peyrin-Biroulet, Silvia D'Alessio, Silvio Danese
BACKGROUND & AIMS: Alterations in signaling pathways that regulate resolution of inflammation (resolving pathways) contribute to pathogenesis of ulcerative colitis (UC). The resolution process is regulated by lipid mediators, such as those derived from the ω-3 docosahexaenoic acid (DHA), whose esterified form is transported by the major facilitator superfamily domain containing 2A (MFSD2A) through the endothelium of brain, retina, and placenta. We investigated if and how MFSD2A regulates lipid metabolism of gut endothelial cells to promote resolution of intestinal inflammation...
August 4, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28820183/technique-of-retinal-gene-therapy-delivery-of-viral-vector-into-the-subretinal-space
#20
K Xue, M Groppe, A P Salvetti, R E MacLaren
PurposeSafe and reproducible delivery of gene therapy vector into the subretinal space is essential for successful targeting of the retinal pigment epithelium (RPE) and photoreceptors. The success of surgery is critical for the clinical efficacy of retinal gene therapy. Iatrogenic detachment of the degenerate (often adherent) retina in patients with hereditary retinal degenerations and small volume (eg, 0.1 ml) subretinal injections pose new surgical challenges.MethodsOur subretinal gene therapy technique involved pre-operative planning with optical coherence tomography (OCT) and autofluorescence (AF) imaging, 23 G pars plana vitrectomy, internal limiting membrane staining with Membrane Blue Dual (DORC BV, Zuidland, Netherlands), a two-step subretinal injection using a 41 G Teflon tipped cannula (DORC) first with normal saline to create a parafoveal bleb followed by slow infusion of viral vector via the same self-sealing retinotomy...
September 2017: Eye
keyword
keyword
110836
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"