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https://www.readbyqxmd.com/read/28099316/pneumatic-vitreolysis-for-relief-of-vitreomacular-traction
#1
Clement K Chan, Jason N Crosson, Calvin E Mein, Noha Daher
PURPOSE: To evaluate the outcome of perfluoropropane (C3F8) gas injection for symptomatic vitreomacular traction (VMT) with or without Stage 2 macular hole (MH). METHODS: A retrospective review of eyes with VMT treated with 0.3 mL of C3F8 gas was performed. Patients avoided the supine position until gas resolution. Patients with small MH maintained partial face-down positioning. RESULTS: Forty-nine consecutive patients (50 eyes) with symptomatic VMT underwent pneumatic vitreolysis between 2010 and 2016...
January 17, 2017: Retina
https://www.readbyqxmd.com/read/28060394/results-of-peripheral-vitrectomy-under-air-in-rhegmatogenous-retinal-detachment
#2
Tugrul Altan, Kemal Turgay Ozbilen, Turgay Cetin, Ziya Kapran
BACKGROUND AND OBJECTIVE: To evaluate the safety and efficacy of peripheral vitrectomy under air in rhegmatogenous retinal detachment (RRD). PATIENTS AND METHODS: Consecutive patients who underwent 23-gauge pars plana vitrectomy for RRD were included. After removal of core vitreous and drainage of subretinal fluid, peripheral vitreous was removed under air infusion without scleral indentation. Silicone oil or C3F8 gas was used as tamponade. RESULTS: Forty-five eyes of 45 patients were evaluated retrospectively...
January 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28057648/in-vitro-experiment-to-elucidate-the-mechanism-of-the-soft-shell-technique-for-preventing-subretinal-migration-of-perfluoro-octane
#3
Yau Kei Chan, Yongjie Lu, Gabriela Czanner, Jing Wu, Ho Ching Cheng, Rumana Hussain, Taiji Sakamoto, Ho Cheung Shum, David Wong
AIM: Perfluorocarbon liquid (PFCL) can migrate into subretinal space in detached and stiffened retina with open holes during vitreoretinal surgery. An innovative 'soft shell' technique was introduced to reduce the complication using hyaluronate (HA) to 'cover' the retinal hole. This study aims to study the effectiveness of this technique in vitro. METHODS: Ex vivo porcine retina was mounted on a transwell insert. Beneath the retina was an aqueous solution. Two retinal holes were made using needle punctures...
January 5, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28005719/age-related-clinical-outcome-after-macular-hole-surgery
#4
Yonguk Kim, Eung Suk Kim, Seung-Young Yu, Hyung Woo Kwak
PURPOSE: To evaluate functional and anatomical retinal recovery according to patient age using spectral domain optical coherence tomography in eyes with surgically closed macular holes. METHODS: We retrospectively studied 83 eyes with anatomically closed idiopathic macular holes after surgery confirmed by spectral domain optical coherence tomography. Patients were divided into four subgroups based on age (Group 1: ≤ 60, Group 2: 61-65, Group 3: 66-70, Group 4: > 70)...
January 2017: Retina
https://www.readbyqxmd.com/read/27990367/missed-retinal-breaks-in-rhegmatogenous-retinal-detachment
#5
Brijesh Takkar, Shorya Azad, Adarsh Shashni, Amar Pujari, Indrish Bhatia, Rajvardhan Azad
AIM: To evaluate the causes and associations of missed retinal breaks (MRBs) and posterior vitreous detachment (PVD) in patients with rhegmatogenous retinal detachment (RRD). METHODS: Case sheets of patients undergoing vitreo retinal surgery for RRD at a tertiary eye care centre were evaluated retrospectively. Out of the 378 records screened, 253 were included for analysis of MRBs and 191 patients were included for analysis of PVD, depending on the inclusion criteria...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27984549/gore-tex-vascular-graft-for-macular-buckling-in-high-myopia-eyes
#6
Pei-Chang Wu, Jiunn-Jye Sheu, Yi-Hao Chen, Yung-Jen Chen, Chih-Hsin Chen, Jong-Jer Lee, Chih-Ling Huang, Chueh-Tan Chen, Hsi-Kung Kuo
PURPOSE: To evaluate a new application of an expanded polytetrafluoroethylene (Gore-Tex) vascular graft for use in macular buckling surgery for treatment of highly myopic eyes. METHODS: The Gore-Tex vascular graft was used as a macular buckling material in eight consecutive cases of myopic macular diseases which included fovea detachment, foveoschisis, or macular hole retinal detachment. RESULTS: Retinal reattachment was achieved in all cases except one which had partial resolution (88%)...
December 14, 2016: Retina
https://www.readbyqxmd.com/read/27935338/pars-plana-vitrectomy-for-vitreomacular-traction-syndrome-analysing-the-preoperative-prognostic-factors
#7
Petros Petrou, Andreas Kontos, Marie-Hélène Errera, Philip J Banerjee, Sidath E Liyanage, Louisa Wickham, Krishna Patel, Ilias Georgalas, Efstratios Gotzaridis, Dimitris Papaconstantinou, David G Charteris
PURPOSE: To identify the prognostic factors affecting the surgical outcomes in patients with vitreomacular traction syndrome undergoing pars plana vitrectomy. METHODS: This was a retrospective clinical study of 67 eyes of 67 patients with vitreomacular traction syndrome who underwent pars plana vitrectomy. Demographic, clinical, and optical coherence tomography (OCT) characteristics were collected and analyzed. Univariate and multivariate linear regression analysis were used to examine the effect of parameters on change in best-corrected visual acuity (BCVA)...
December 9, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27930456/effects-of-a-modified-vitrectomy-probe-in-small-gauge-vitrectomy-an-experimental-study-on-the-flow-and-on-the-traction-exerted-on-the-retina
#8
Stanislao Rizzo, Gualtiero Fantoni, Giovanni de Santis, Jaw-Chyng Lormen Lue, Jonathan Ciampi, Michele Palla, Federica Genovesi Ebert, Alfonso Savastano, Carmelo De Maria, Giovanni Vozzi, Rodrigo A Brant Fernandes, Francesco Faraldi, Giuseppe Criscenti
PURPOSE: Thorough this experimental study, the physic features of a modified 23-gauge vitrectomy probe were evaluated in vitro. METHODS: A modified vitrectomy probe to increase vitreous outflow rate with a small-diameter probe, that also minimized tractional forces on the retina, was created and tested. The "new" probe was created by drilling an opening into the inner duct of a traditional 23-gauge probe with electrochemical or electrodischarge micromachining. Both vitreous outflow and tractional forces on the retina were examined using experimental models of vitreous surgery...
December 7, 2016: Retina
https://www.readbyqxmd.com/read/27911448/inverted-internal-limiting-membrane-flap-technique-as-a-useful-procedure-for-macular-hole-associated-retinal-detachment-in-highly-myopic-eyes
#9
H Sasaki, A Shiono, J Kogo, R Yomoda, Y Munemasa, M Syoda, H Otake, H Kurihara, Y Kitaoka, H Takagi
PurposeTo determine whether the inverted internal limiting membrane (ILM) flap technique contributes to high reattachment and closure rates in patients with macular hole-associated retinal detachment (MHRD).Patients and methodsIn all, 15 eyes of 15 patients with MHRD undergoing 25-gauge pars plana vitrectomy with the inverted ILM flap technique or ILM peeling. The patients were divided into the inverted ILM flap technique group (6 eyes) and ILM peeling group (9 eyes). The logarithm of minimal angle of resolution best-corrected visual acuity (BCVA) and retinal attachment and macular hole closure rates were compared between the two groups before and after surgery...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27898707/long-term-changes-in-intraocular-pressure-after-vitrectomy-for-rhegmatogenous-retinal-detachment-epi-retinal-membrane-or-macular-hole
#10
Kentaro Yamamoto, Takeshi Iwase, Hiroko Terasaki
PURPOSE: To determine the long-term changes in the intraocular pressure (IOP) following vitrectomy for rhegmatogenous retinal detachment (RRD), epiretinal membrane (ERM), and macular hole (MH), and to investigate the relationship between the retinal disease and the incidence of late-onset IOP elevation. METHODS: This was a retrospective, observational, comparative study. We reviewed the medical records of 54 eyes of 54 RRD patients, 117 eyes of 117 ERM patients, and 75 eyes of 75 MH patients who underwent 20-, 23- or 25-gauge vitrectomy...
2016: PloS One
https://www.readbyqxmd.com/read/27853955/different-foveal-schisis-patterns-in-each-retinal-layer-in-eyes-with-hereditary-juvenile-retinoschisis-evaluated-by-en-face-optical-coherence-tomography
#11
Tomoyo Yoshida-Uemura, Satoshi Katagiri, Tadashi Yokoi, Sachiko Nishina, Noriyuki Azuma
PURPOSE: To analyze the structures of schisis in eyes with hereditary juvenile retinoschisis using en-face optical coherence tomography (OCT) imaging. METHODS: In this retrospective observational study, we reviewed the medical records of patients with hereditary juvenile retinoschisis who underwent comprehensive ophthalmic examinations including swept-source OCT. RESULTS: OCT images were obtained from 16 eyes of nine boys (mean age ± standard deviation, 10...
November 16, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27853954/spectral-domain-optical-coherence-tomography-findings-in-idiopathic-lamellar-macular-hole
#12
Elena Zampedri, Federica Romanelli, Francesco Semeraro, Barbara Parolini, Rino Frisina
BACKGROUND: To evaluate demographic, functional, and morphological parameters of idiopathic lamellar macular hole (ILMH). METHODS: Observational longitudinal retrospective study. Optical coherence tomography examinations and corresponding clinical charts of a series of consecutive patients affected by ILMH, between January 2010 and March 2015, from the database of the Department of Ophthalmology of Trento Hospital, Italy, have been collected and examined. Demographic and functional parameters were: age (year), gender (male/female), eye (right/left), lens status, best-corrected visual acuity (BCVA) in logarithm of the minimum angle of resolution (LogMAR)...
November 16, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27833968/posterior-vitreous-detachment-and-macular-anatomical-changes-a-tomographic-electroretinographic-study
#13
Alin Ştefan Ştefănescu-Dima, Cornelia Andreea Corîci, Maria Rodica Mănescu, Teodor Nicuşor Sas, Maria Iancău, Carmen LuminiŢa Mocanu
AIM: Posterior vitreous detachment (PVD) is a physiological phenomenon due to aging characterized by separation of the vitreous cortex from the retina and may induce a variety of pathological events at the vitreoretinal junction. The aim of this study is to highlight in vivo anatomical and functional changes in early stages of PVD allowing the correct treatment. MATERIAL AND METHODS: Non-consecutive case series; optical coherence tomography (OCT) relies on analyzing the reflectivity of coherent light from different anatomical interfaces within posterior vitreous and retinal histological layers, thus acquiring transverse sections through vitreoretinal interface, sensory retina, retinal pigment epithelium and choroid...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27832339/vitrectomy-and-scleral-imbrication-in-patients-with-myopic-traction-maculopathy-and-macular-hole-retinal-detachment
#14
Yoshimasa Ando, Akito Hirakata, Arisa Ohara, Reiji Yokota, Tadashi Orihara, Kazunari Hirota, Takashi Koto, Makoto Inoue
PURPOSE: To determine the outcomes of vitrectomy with scleral imbrication in highly myopic eyes with either myopic traction maculopathy (MTM) or macular hole retinal detachment (MHRD). METHODS: The medical records of 17 patients who had undergone vitrectomy with internal limiting membrane (ILM) peeling and scleral imbrication for MTM or MHRD were reviewed. The best-corrected visual acuities (BCVAs), the axial length, the macular hole (MH) closure rate, and the shape of the posterior segment determined by optical coherence tomography were evaluated...
November 10, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27813527/pneumatic-release-of-focal-vitreomacular-traction
#15
M G Claus, E Feron, M Veckeneer
PurposeTo study the efficacy of a single intravitreal injection of expansile gas as a valuable alternative to current treatment options (conservative, pharmacological, and surgical) in patients with symptomatic, focal vitreomacular traction (VMT).Patients and methodsThis study comprises a retrospective, interventional case series of patients. Twenty eyes in seventeen patients with symptomatic and persisting focal VMT were treated in an outpatient setting with an intravitreal gas injection of 0.2 ml. In 19 eyes, 100% hexafluoroethane (C2F6) was used...
November 4, 2016: Eye
https://www.readbyqxmd.com/read/27812594/probing-electrical-signals-in-the-retina-via-graphene-integrated-microfluidic-platforms
#16
Yuchen Zhang, Kirsten H Dodson, Rachel Fischer, Rui Wang, Deyu Li, Rebecca M Sappington, Ya-Qiong Xu
Graphene has attracted extensive attention in biological and biomedical fields due to its unique physical properties and excellent biocompatibility. We combine graphene field-effect transistors and scanning photocurrent microscopy with microfluidic platforms to investigate electrical signals in mouse retina. Remarkable photocurrent signals were detected from the graphene underneath the optic nerve head (ONH) of the retina, where the electrical activity from this region can modulate the carrier concentration of the graphene and induce local potential gradients...
December 7, 2016: Nanoscale
https://www.readbyqxmd.com/read/27803918/surgeon-performed-point-of-care-ultrasound-in-severe-eye-trauma-report-of-two-cases
#17
Fikri M Abu-Zidan, Korana Balac, Chetana Anand Bhatia
The indications of point-of-care ultrasound (POCUS) in the management of multiple trauma patients have been expanding. Although computed tomography (CT) scan of the orbit remains the gold standard for imaging orbital trauma, ultrasound is a quick, safe, and portable tool that can be performed bedside. Here we report two patients who had severe eye injuries with major visual impairment where surgeon-performed POCUS was very useful. One had a foreign body injury while the other had blunt trauma. POCUS was done using a linear probe under sterile conditions with minimum pressure on the eyes...
October 16, 2016: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/27803812/transient-increase-of-retinal-nerve-fiber-layer-thickness-after-vitrectomy-with-ilm-peeling-for-idiopathic-macular-hole
#18
Kouichi Ohta, Atsuko Sato, Nami Senda, Emi Fukui
Purpose. The purpose of this study was to determine the long-term changes in the circumpapillary retinal nerve fiber layer (RNFL) thickness following macular hole surgery with internal limiting membrane (ILM) peeling combined with phacoemulsification. Methods. Thirty-eight eyes of 37 patients who had pars plana vitrectomy (n = 36) between 2010 and 2014 were studied. The average thicknesses of the global and the six sectors of the RNFL were determined before and at 1, 3, 6, 12, and 24 (n = 22) months (M) after the surgery by spectral-domain optical coherent tomography...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27800199/-magic-bullet-eccentric-macular-hole-as-a-complication-from-dexamethasone-implant-insertion
#19
Logan Christensen, Riley Sanders, Jeffrey Olson
Introduction. Intravitreal drug injections and implants are generally safe but do carry some risk, from both the procedure itself and adverse effects of the medications. We report a case of an eccentric macular hole after dexamethasone implant (Ozurdex®) administration. Ex vitro force testing was performed to evaluate dexamethasone implant injection force. Methods. Five dexamethasone implant (Ozurdex) applicators were placed 16 mm from a force plate and the force of the injected dexamethasone pellet was recorded in Newtons...
2016: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/27795795/cataract-surgery-with-intraocular-lens-implantation-in-children-aged-5-15-in-local-anaesthesia-visual-outcomes-and-complications
#20
Kagmeni Giles, Domngang Christelle, Bilong Yannick, Otto Herrmann Fricke, Peter Wiedemann
The aim of this study was to report feasibility, the visual outcomes and complications of pediatric cataract surgery with primary intraocular lens implantation in children aged 5 to15 years in local anesthesia. This retrospective interventional case series included 62 eyes from 50 children who underwent pediatrc cataract surgery with primary intraocular lens implantation at the Mana eye Clinic Nkongsamba between 2006 and 2015 Main outcome measures were: best-corrected post operative visual acuity, and intraoperative and postoperative complications...
2016: Pan African Medical Journal
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