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Glaucoma drainage device

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https://www.readbyqxmd.com/read/28807636/visual-outcomes-and-complications-of-type-i-boston-keratoprosthesis-in-children-a-retrospective-multicenter-study-and-literature-review
#1
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
#2
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
#3
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
#4
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...
July 7, 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
#5
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
#6
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
#7
Prina Mehta, Ali Al-Kinani, Rita Haj-Ahmad, Muhammad Sohail Arshad, Ming-Wei Chang, G Raid 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...
June 15, 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
#8
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
#9
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
#10
Remo Susanna
No abstract text is available yet for this article.
May 26, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28557828/vitreous-occlusion-of-a-glaucoma-drainage-implant-surgical-management
#11
Kateki Vinod, Joseph F Panarelli, Ronald C Gentile, Paul A Sidoti
Vitreous occlusion of a glaucoma drainage implant (GDI) can lead to failure of the device and severely elevated intraocular pressure. The pathophysiology of tube obstruction is related to central and anterior displacement of vitreous that is drawn into and condenses within the proximal lumen of the tube. This can occur from days to years following GDI surgery. Successful management of vitreous-tube obstruction generally requires manual removal of the condensed vitreous plug with end-grasping forceps. This technique achieves reversal of tube blockage and restoration of GDI function...
July 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28546928/modified-deep-sclerectomy-combined-with-ex-press-filtration-device-versus-trabeculectomy-for-primary-open-angle-glaucoma
#12
Vassilios Kozobolis, Georgios D Panos, Aristeidis Konstantinidis, Miguel Teus, Georgios Labiris
AIM: To compare the efficacy of modified deep sclerectomy combined with Ex-PRESS shunt versus trabeculectomy in primary open angle glaucoma. METHODS: This is a prospective cohort comparative single-center study. Forty-nine eyes of 49 patients were enrolled in the study. Patients were randomly divided into two groups. Group A (22 patients) underwent classic trabeculectomy and group B (27 patients) underwent modified deep sclerectomy combined with insertion of Ex-PRESS model P50 drainage device...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28529825/innovative-approaches-to-glaucoma-management-of-boston-keratoprosthesis-type-1
#13
Thasarat S Vajaranant, Jessica Liu, Jacob Wilensky, M Soledad Cortina, Ahmad A Aref
Glaucoma remains a prevalent disorder and visual limiting factor after Boston keratoprosthesis type 1 implantation. Patients with glaucoma have worse initial and late visual acuity outcomes after otherwise successful keratoprosthesis implantation. Management of glaucoma in the setting of a keratoprosthesis is challenging because of relatively rapid progression and an inability to accurately measure intraocular pressure (IOP). In addition, there are no standard guidelines for glaucoma surveillance and monitoring after keratoprosthesis surgery...
September 2016: Current Ophthalmology Reports
https://www.readbyqxmd.com/read/28506604/the-supraciliary-space-as-a-suitable-pathway-for-glaucoma-surgery-ho-hum-or-home-run
#14
REVIEW
Michele Figus, Chiara Posarelli, Andrea Passani, Timothy G Albert, Francesco Oddone, Angela Tindara Sframeli, Marco Nardi
The supraciliary space is a physiological route for aqueous humor outflow located anteriorly between the outer surface of the ciliary body and the internal surface of the sclera. Posteriorly, the suprachoroidal space is located between the choroid and the internal surface of the sclera. These spaces have been targeted as suitable and helpful pathways for glaucoma treatment, alternatives to the traditional subconjunctival space. The subconjunctival surgical pathway is affected by several limitations such as poor cosmesis, a lifetime risk for endophthalmitis, and an unpredictable wound healing response...
May 12, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28448424/rapid-intraocular-tube-trimming-for-glaucoma-drainage-implant-devices
#15
Paul Baciu, Stephen J Moster, Richard K Lee
PURPOSE: To describe a new approach for shortening silicone tubes of glaucoma drainage devices (GDDs). MATERIALS AND METHODS: A retrospective intervention case series describing 3 patients undergoing the same treatment at a single institutional center RESULTS:: Three patients underwent successful ab interno trimming of GDD silicone tubes without complication CONCLUSIONS:: This technique allows for rapid and successful shortening of GDD tubes via an ab interno approach avoiding risks of traditional glaucoma tube trimming approaches...
May 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28442696/surgical-management-of-pediatric-glaucoma
#16
Ingrid Chang, Joseph Caprioli, Yvonne Ou
Pediatric glaucoma surgery is challenging because of the differences in anatomy from the adult, differences in the behavior of the tissues of a child's glaucomatous eye, the variety in causes of the disease, and difficulties with postoperative management. Goniotomy and trabeculotomy are the preferred initial treatments for primary congenital glaucoma. Trabeculectomy with adjunctive mitomycin C is more likely to succeed in older, phakic patients, but carries the long-term risk of bleb-associated endophthalmitis...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442690/mini-drainage-devices-for-anterior-and-intermediate-filtration
#17
Marco Nardi, Chiara Posarelli, Francesco Nasini, Michele Figus
Mini glaucoma devices for external filtration may be implanted with an ab externo procedure (Ex-PRESS and InnFocus Microshunt) or with an ab interno procedure (XEN Gel stent). The Ex-PRESS is an FDA-approved mini glaucoma device that has been developed in order to simplify anterior guarded filtering procedures, making them faster, safer and easier. It is positioned under a scleral flap and it is introduced in the anterior chamber through a needle hole, avoiding the excision of the corneal-scleral button and the iridectomy...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28441214/the-osteo-odonto-keratoprosthesis
#18
REVIEW
Mehran Zarei-Ghanavati, Venkata Avadhanam, Alfonso Vasquez Perez, Christopher Liu
PURPOSE OF REVIEW: To describe the practice of and recent developments in the osteo-odonto-keratoprosthesis. RECENT FINDINGS: Formal psychological assessment and support have been described. A sub-aqua system for fashioning the osteo-odonto-keratoprosthesis lamina; adoption of thicker laminae; use of bisphosphonate drugs; advances in laminar imaging; and use of bone augmentation and bone morphogenetic protein have been described for prevention, detection, and management of laminar resorption...
July 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28421664/intermediate-term-and-long-term-outcome-of-piggyback-drainage-connecting-glaucoma-drainage-device-to-a-device-in-situ-for-improved-intraocular-pressure-control
#19
Edward Dervan, Edward Lee, Antonio Giubilato, Tina Khanam, Panayiotis Maghsoudlou, William H Morgan
IMPORTANCE: This study provides results of a treatment option for patients with failed primary glaucoma drainage device. BACKGROUND: The study aimed to describe and evaluate the long-term intraocular pressure control and complications of a new technique joining a second glaucoma drainage device directly to an existing glaucoma drainage device termed 'piggyback drainage'. DESIGN: This is a retrospective, interventional cohort study. PARTICIPANTS: Eighteen eyes of 17 patients who underwent piggyback drainage between 2004 and 2013 inclusive have been studied...
April 19, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28394811/glaucoma-drainage-device-erosion-following-ptosis-surgery
#20
Steven S Bae, Robert J Campbell
PURPOSE: To highlight the potential risk of glaucoma drainage device erosion following ptosis surgery. METHODS: Case report. RESULTS: A 71-year-old man underwent uncomplicated superotemporal Ahmed glaucoma valve implantation in the left eye in 2008. Approximately 8 years later, the patient underwent bilateral ptosis repair, which successfully raised the upper eyelid position. Three months postoperatively, the patient's glaucoma drainage implant tube eroded through the corneal graft tissue and overlying conjunctiva to become exposed...
April 7, 2017: Journal of Glaucoma
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