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Glaucoma drainage device

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https://www.readbyqxmd.com/read/29027064/light-scattering-measurements-in-electron-beam-sterilized-corneas-stored-in-recombinant-human-serum-albumin
#1
Khoa D Tran, Yan Li, Jeffrey D Holiman, Maolong Tang, David Huang, Michael D Straiko, Christopher G Stoeger
Irradiated corneal tissues have been used for a variety of ophthalmic procedures including glaucoma drainage device covers and lamellar grafts. The maintenance of corneal clarity is important, as light obstructions resulting from processing or long-term storage of irradiated corneas may negatively affect vision and postoperative cosmesis. It has been reported that corneal tissues can be preserved in human serum albumin (HSA), however, the clarity of corneas after long-term storage in HSA has not been well described...
October 12, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28944192/intraocular-pressure-control-of-a-novel-glaucoma-drainage-device-in-vitro-and-in-vivo-studies
#2
Li-Jun Cui, Di-Chen Li, Jian Liu, Lei Zhang, Yao Xing
AIM: To evaluate the intraocular pressure (IOP) control of an artificial trabeculum drainage system (ATDS), a newly designed glaucoma drainage device, and postoperative complications in normal rabbit eyes. METHODS: Pressure drops in air and fluid of 30 ATDS were measured after being connected to a closed manometric system. Twenty of them were then chosen and implanted randomly into the eyes of 20 rabbits. Postoperative slit-lamp, gonioscopic examination and IOP measurements were recorded periodically...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28930886/upper-eyelid-splitting-to-facilitate-the-insertion-of-glaucoma-drainage-devices
#3
Lorraine M Provencher, Keith D Carter, Jeffrey A Nerad, Wallace L M Alward
PURPOSE: To describe a new application for vertical splitting of the upper eyelid, a technique traditionally used for orbital access, in order to facilitate glaucoma drainage device implantation in patients with poor surgical exposure. METHODS: Case series. CASES: We present a case of Möbius syndrome with complete restriction of the extraocular muscles, followed by a case of cicatricial narrowing of the palpebral fissures due to chronic allergic dermatitis...
September 19, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28930885/author-response-regarding-simultaneous-implantation-of-an-ahmed-and-baerveldt-glaucoma-drainage-device-for-uncontrolled-intraocular-pressure-in-advanced-glaucoma
#4
Veena Rao, Pratap Challa
No abstract text is available yet for this article.
September 19, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28919702/micro-invasive-glaucoma-surgery-migs-a-review-of-surgical-procedures-using-stents
#5
Lutz E Pillunat, Carl Erb, Anselm Gm Jünemann, Friedemann Kimmich
Over the last decade several novel surgical treatment options and devices for glaucoma have been developed. All these developments aim to cause as little trauma as possible to the eye, to safely, effectively, and sustainably reduce intraocular pressure (IOP), to produce reproducible results, and to be easy to adopt. The term "micro-invasive glaucoma surgery (MIGS)" was used for summarizing all these procedures. Currently MIGS is gaining more and more interest and popularity. The possible reduction of the number of glaucoma medications, the ab interno approach without damaging the conjunctival tissue, and the probably safer procedures compared to incisional surgical methods may explain the increased interest in MIGS...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28900712/-starflo-a-suprachoroidal-drainage-implant-in-glaucoma-surgery
#6
S König, C W Hirneiß
BACKGROUND: The STARflo Glaucoma Device (iSTAR Medical, Wavre, Belgium) offers a new approach to bleb-free filtering surgery in which the intraocular pressure (IOP) is lowered by supporting outflow of the aqueous humor into the suprachoroidal space. MATERIALS AND METHODS: On the basis of a case series of 9 patients with open-angle glaucoma (OAG) unmanageable by drug-based treatment, intra- and postoperative experiences with the implant are presented. The implant, the implantation procedure, and the first results 6 months postoperatively are described...
September 12, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28858960/ahmed-valve-upstream-obstruction-caused-by-fibrous-ingrowth-surgical-approach
#7
Joana Medeiros Pinto, Nuno Pinto Ferreira, Luis Abegão Pinto
Glaucoma secondary to penetrating keratoplasty can be challenging and multiple surgeries may be needed to control the intraocular pressure (IOP), including the use of glaucoma drainage implants. However, late failure of these drainage implant surgery is common, mostly because of excessive scarring or bleb encapsulation which may require further surgical intervention. We present a case of a young patient referred for advanced glaucoma secondary to penetrating keratoplasty and chronic uveitis. He presented with elevated IOP under maximal therapy, already with 2 failed trabeculectomies and a nonfunctional Ahmed Valve...
August 30, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28858156/comparison-of-efficacy-and-complications-of-cyclophotocoagulation-and-second-glaucoma-drainage-device-after-initial-glaucoma-drainage-device-failure
#8
Margaret Y Wang, Kishan Patel, Lauren S Blieden, Alice Z Chuang, Laura A Baker, Nicholas P Bell, Robert M Feldman
PURPOSE: Compare intraocular pressure (IOP) control and complication rates of a second glaucoma drainage device (GDD) to diode transscleral cyclophotocoagulation (TSCPC) following failure of an initial GDD. PATIENTS AND METHODS: Eyes with one GDD that required a second GDD or TSCPC for glaucoma control were included. Exclusion criteria were a cyclodestructive procedure prior to initial GDD, no light perception vision, or follow-up less than one year. Failure was defined as one or more of (1) reoperation for lowering IOP; (2) explantation of second GDD; (3) persistent hypotony; (4) use of oral carbonic anhydrase inhibitor for lowering IOP in the study eye; or (5) loss of light perception...
August 28, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28857946/clinical-implications-of-specific-features-of-the-new-susanna-glaucoma-drainage-device
#9
Tiago S Prata, Augusto Paranhos
No abstract text is available yet for this article.
September 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28844120/development-of-a-biodegradable-flow-resisting-polymer-membrane-for-a-novel-glaucoma-microstent
#10
Stefan Siewert, Karen Falke, Frank Luderer, Thomas Reske, Wolfram Schmidt, Sylvia Pfensig, Michael Stiehm, Ulf Hinze, Boris Chichkov, Niels Grabow, Rudolf Guthoff, Klaus-Peter Schmitz
Within this paper we analyzed the technical feasibility of a novel microstent for glaucoma therapy. For lowering of intraocular pressure, the flexible polyurethane (PUR) implant is designed to drain aqueous humour from the anterior chamber of the eye into subconjunctival, or alternatively suprachoroidal, space. The microstent includes a biodegradable, flow resisting polymer membrane serving as temporary flow resistance for the prevention of early postoperative hypotony. A biodegradable local drug delivery (LDD)-device was designed to prevent fibrous encapsulation...
August 26, 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28807636/visual-outcomes-and-complications-of-type-i-boston-keratoprosthesis-in-children-a-retrospective-multicenter-study-and-literature-review
#11
Simon S M Fung, Samir Jabbour, Mona Harissi-Dagher, Reginald R G Tan, Patrick Hamel, Kashif Baig, Asim Ali
PURPOSE: To report outcomes and complications of Boston type 1 keratoprosthesis (KPro) implantation in children. DESIGN: Retrospective, multicenter case series. PARTICIPANTS: All children 16 years of age or younger who underwent KPro surgery at 3 ophthalmology centers in Canada between January 2010 and November 2014. METHODS: Records of patients having undergone KPro implantation were reviewed. Data on preoperative characteristics, surgical procedure(s) performed, and postoperative outcomes were collected and analyzed...
August 11, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28759902/-complications-of-dmekeratoplasty-avoid-recognize-and-treat
#12
Björn O Bachmann, Silvia A Schrittenlocher, Friederike Schaub, Sebastian Siebelmann, Mario Matthaei, Claus Cursiefen
Descemet membrane endothelial keratoplasty (DMEK) has evolved into a routine surgical procedure for posterior lamellar keratoplasty. After its introduction more than 10 years ago, several modifications in grafting technique and postoperative treatment regimen helped to improve its safety and reproducibility. Although DMEK offers faster and better improvements in visual acuity, as well as less graft rejections when compared to Descemet's stripping (automated) endothelial keratoplasty (DS[A]EK), difficulties when implementing this technique hamper the widespread use in many areas...
July 31, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28731936/case-series-keratolimbal-allograft-as-a-patch-graft-for-glaucoma-drainage-devices
#13
Sarah F Ahmed, Mason Schmutz, Sameh Mosaed
PURPOSE: Tube exposure remains one of the most common complications after glaucoma drainage device (GDD) implantation, despite various types of patch grafts available today. We present a 4 patient case series following the effectivity of the keratolimbal allograft (KLAL) as a patch graft for cases of tube exposure. Given its inherent population of stem cells, our hypothesis was that this highly replicative, biological tissue would provide an adequate means of glaucoma tube coverage. The subset of patients chosen for the KLAL patch graft all had a history of abnormally scarred conjunctiva or thin sclera...
July 20, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28692597/practice-preferences-for-glaucoma-surgery-a-survey-of-the-american-glaucoma-society
#14
Kateki Vinod, Steven J Gedde, William J Feuer, Joseph F Panarelli, Ta C Chang, Philip P Chen, Richard K Parrish
PURPOSE: The purpose of this study is to assess surgical practice patterns among the American Glaucoma Society (AGS) membership. METHODS: An anonymous online survey evaluating the use of glaucoma surgeries in various clinical settings was redistributed to AGS members. Survey responses were compared with prior results from 1996, 2002, and 2008 to determine shifts in surgical practice patterns. Questions were added to assess the preferred approach to primary incisional glaucoma surgery and phacoemulsification combined with glaucoma surgery...
August 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28671924/long-term-outcome-of-surgical-treatment-for-late-intraocular-lens-dislocation-associated-with-high-intraocular-pressure-a-case-series
#15
Lucas A Torres, Jayme R Vianna, Marcelo T Nicolela
PURPOSE: To demonstrate the long-term safety and efficacy of transscleral intraocular lens (IOL) fixation combined with an Ahmed glaucoma drainage device implantation for patients with late IOL dislocation and high intraocular pressure (IOP). METHODS: This is a retrospective report of a series of patients who underwent this combined surgery. The main outcome variables studied were change in visual acuity (VA), IOP, and number of medications compared with preoperative levels...
June 30, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28670653/modified-descemet-s-stripping-automated-endothelial-keratoplasty-for-eyes-with-glaucoma-drainage-devices-and-shallow-anterior-chambers
#16
Alfonso Vasquez-Perez, Syed Mohammed Naqib, Mayank A Nanavaty
PURPOSE: To present a modified Descemet's stripping automated endothelial keratoplasty (DSAEK) technique to avoid risks of endothelial cell loss related to the presence of a glaucoma tube in cases with shallow anterior chamber. METHOD: A 72-year-old patient with an only eye and corneal decompensation secondary to a Baerveldt tube was referred for keratoplasty. He was pseudophakic and had shallow anterior chamber. His best-corrected visual acuity was counting fingers close to face...
July 3, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28625688/electrically-atomised-formulations-of-timolol-maleate-for-direct-and-on-demand-ocular-lens-coatings
#17
Prina Mehta, Ali A Al-Kinani, Rita Haj-Ahmad, Muhammad Sohail Arshad, Ming-Wei Chang, Raid G Alany, Zeeshan Ahmad
Advances in nanotechnology have enabled solutions for challenging drug delivery targets. While the eye presents numerous emerging opportunities for delivery, analysis and sensing; issues persist for conventional applications. This includes liquid phase formulation localisation on the ocular surface once administered as formulated eye-drops; with the vast majority of dosage (>90%) escaping from the administered site due to tear production and various drainage mechanisms. The work presented here demonstrates a single needle electrohydrodynamic (EHD) engineering process to nano-coat (as an on demand and controllable fiber depositing method) the surface of multiple contact lenses rendering formulations to be stationary on the lens and at the bio-interface...
October 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28587882/combined-vitrectomy-and-glaucoma-drainage-device-implantation-surgical-approach-for-complex-pediatric-glaucomas
#18
Cem Ozgonul, Cagri G Besirli, Brenda L Bohnsack
PURPOSE: To evaluate efficacy of combined vitrectomy with posteriorly-placed glaucoma drainage device (GDD) in lowering intraocular pressure (IOP) in children. PATIENTS AND METHODS: Retrospective case review identified 20 children who underwent vitrectomy with posteriorly-placed GDD with minimal 6-months follow-up. First eye operated on was included. Success was defined as IOP 5-20 mmHg, no additional IOP-lowering surgery or visually-devastating complications. RESULTS: Patients with primary infantile-onset glaucoma (25%), traumatic glaucoma (15%), Peters anomaly (15%), microphthalmia (25%), glaucoma following cataract surgery (10%), microspherophakia (5%), and retinopathy of prematurity (5%) were included...
June 3, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28575917/-surgical-options-in-glaucoma-management
#19
Thomas S Dietlein, André Rosentreter
During the last few years, there has been a considerable capacity of innovations in glaucoma surgery owing to new micro-stents increasing the aqueous outflow via transscleral routes, via the trabecular meshwork or the suprachoroidal space. These interventions can be easily performed in combination with small-incision cataract surgery. Even the well-known filtering procedures, trabeculectomy and drainage device surgery, formerly perceived as being outdated, re-achieve better reputation owing to refinements in surgical technique and improved surgical experience...
June 2, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28557830/evaluation-of-the-efficacy-and-safety-of-the-new-susanna-glaucoma-drainage-device-in-refractory-glaucomas-short-term-results
#20
Remo Susanna
No abstract text is available yet for this article.
May 26, 2017: Journal of Glaucoma
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