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Glaucoma drainage device

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https://www.readbyqxmd.com/read/28176011/implantation-of-a-second-glaucoma-drainage-device
#1
Brian A Francis, Rodrigo A B Fernandes, Handan Akil, Vikas Chopra, Bruno Diniz, James Tan, Alex Huang
PURPOSE: To evaluate success rates in controlling intraocular pressure (IOP) after implantation of a second glaucoma drainage device (GDD) with a Baerveldt glaucoma implant in patients with refractory glaucoma, with a secondary aim of reducing the need for postoperative glaucoma medications. MATERIAL AND METHODS: This retrospective, noncomparative, interventional study included patients undergoing a second GDD for uncontrolled glaucoma from a tertiary care glaucoma service...
February 7, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28144751/glaucoma-drainage-device-surgery-in-children-and-adults-a-comparative-study-of-outcomes-and-complications
#2
Achilleas Mandalos, Velota Sung
PURPOSE: To compare the postoperative outcomes and complications of glaucoma drainage device (GDD) surgery in pediatric (<18 years old) and adult patients. METHODS: Retrospective, comparative study including all patients who underwent Baervedlt or Molteno device surgery by the same surgeon. Success criteria included postoperative intraocular pressure (IOP) between 6 and 21 mmHg and a 20% reduction from baseline. RESULTS: Fifty-two children (69 eyes) and 130 adults (145 eyes) were included...
February 1, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28139154/safety-and-efficacy-of-a-membrane-tube-type-glaucoma-shunt-device-an-animal-trial
#3
Dai Woo Kim, Young Hoon Hwang, Byung Heon Ahn, Eun-Kyung Lee, Chang-Sik Kim
PURPOSE: To evaluate the safety and efficacy of a membrane-tube-type glaucoma shunt device (MT-device), which was developed to control intraocular pressure (IOP) with a lower chance of complications than conventional glaucoma surgery, in a rabbit model. MATERIALS AND METHODS: The MT-device consists of an expanded polytetrafluoroethylene membrane (thickness 0.2 mm, area 2.5 × 2.5 mm(2)) and a tube (internal diameter 76 µm, external diameter 175.5 µm, length 7 mm) attached to the membrane...
January 31, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28138212/retrospective-comparison-of-intermediate-term-efficacy-of-350-mm-2-glaucoma-drainage-implants-and-medium-sized-230-250-mm-2-implants
#4
Alissa M Meyer, Cooper D Rodgers, Baiming Zou, Nicole C Rosenberg, Aaron D Webel, Mark B Sherwood
AIM: To compare the intermediate-term efficacy of a large surface area Baerveldt 350 mm(2) glaucoma drainage device (GDD) with medium surface area implants (Baerveldt 250 mm(2) and Molteno 3, 230, or 245 mm(2)). DESIGN: This is a retrospective, nonrandomized comparative trial. MATERIALS AND METHODS: A total of 94 eyes of 94 patients of mixed glaucoma diagnoses without any prior glaucoma surgical procedures and who had undergone a glaucoma drainage implant surgery with either a large Baerveldt 350 mm(2) GDD or a medium-sized GDD (Baerveldt 250 mm(2) or Molteno 230 or 245 mm(2)) were reviewed for intraocular pressure (IOP), number of glaucoma medications, and visual acuity (VA) preoperatively, and at 1, 2, and 3 years postprocedure...
January 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/28138210/relationship-between-glaucoma-drainage-device-size-and-intraocular-pressure-control-does-size-matter
#5
EDITORIAL
Cooper D Rodgers, Alissa M Meyer, Mark B Sherwood
: There is ambiguity in the literature regarding whether a larger glaucoma drainage device (GDD) achieves a lower long-term intraocular pressure (IOP). There is some evidence on both sides, but overall there seems to be an optimal surface area of approximately 200-250 mm(2) beyond which there may be little advantage to increasing the plate size for most patients. HOW TO CITE THIS ARTICLE: Rodgers CD, Meyer AM, Sherwood MB. Relationship between Glaucoma Drainage Device Size and Intraocular Pressure Control: Does Size Matter? J Curr Glaucoma Pract 2017;11(1):1-2...
January 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/28134460/surgical-outcomes-of-trabeculectomy-and-glaucoma-drainage-implant-for-uveitic-glaucoma-and-relationship-with-uveitis-activity
#6
Hye Jin Kwon, Yu Xiang George Kong, Lingwei William Tao, Lyndell L Lim, Keith R Martin, Catherine Green, Jonathan Ruddle, Jonathan G Crowston
IMPORTANCE: This study provides ophthalmologists who manage uveitic glaucoma with important information on factors that can affect the success of surgical management of this challenging disease. BACKGROUND: This study examines surgical outcomes of trabeculectomy and glaucoma device implant (GDI) surgery for uveitic glaucoma, in particular the effect of uveitis activity on surgical outcomes. DESIGN: Retrospective chart review at a tertiary institution...
January 30, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28118286/viscoelastic-assisted-drainage-of-suprachoroidal-hemorrhage-associated-with-seton-device-in-glaucoma-filtering-surgery
#7
Shree K Kurup, Jedediah I McClintic, John C Allen, Brandon J Baartman, Michael M Altaweel, Sunir J Garg, Hugo Quiroz-Mercado
PURPOSE: The purpose of this article is to describe a novel surgical technique for the management of large suprachoroidal hemorrhages associated with the insertion of glaucoma seton devices. METHODS: In this interventional case series, the authors describe six eyes of six patients who had management of suprachoroidal hemorrhage with pars plana choroidal drainage along with simultaneous insertion of viscoelastic into the posterior segment. All patients had a median of 8-month postoperative follow-up...
February 2017: Retina
https://www.readbyqxmd.com/read/28118203/evaluation-of-the-efficacy-and-safety-of-the-new-susanna-glaucoma-drainage-device-in-refractory-glaucomas-short-term-results
#8
Luis G Biteli, Tiago S Prata, Carolina P B Gracitelli, Fábio N Kanadani, Flávia Villas Boas, Marcelo Hatanaka, Augusto Paranhos Junior
PURPOSE: To assess the efficacy and safety of the new Susanna glaucoma drainage device (SGDD) in patients with neovascular and refractory glaucomas. MATERIALS AND METHODS: In this prospective study, patients with neovascular glaucoma or refractory glaucomas (defined as eyes with previous trabeculectomy failure) were enrolled. All eyes had to have intraocular pressure (IOP) above 21 mm Hg despite maximum tolerated topical medication, or recent documentation of anatomic and/or functional progression...
January 23, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28104502/staying-away-from-the-optic-nerve-a-formula-for-modifying-glaucoma-drainage-device-surgery-in-pediatric-and-other-small-eyes
#9
Milica A Margeta, Anthony N Kuo, Alan D Proia, Sharon F Freedman
PURPOSE: To provide guidelines for safe implantation of glaucoma drainage devices (GDDs) in small and pediatric eyes to avoid contact between the optic nerve (ON) and the posterior edge of the GDD plate. METHODS: We developed a formula for calculating limbus-to-ON distance to estimate the available "real estate" for GDD placement in small eyes. The formula was validated using eyes of pediatric decedents undergoing clinical autopsy, with axial lengths (AL) of 15-24 mm...
January 16, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28098579/xen-gel-stent-internal-ostium-occlusion-ab-interno-revision
#10
Nuno Pinto Ferreira, Luis Abegão Pinto, Carlos Marques-Neves
Minimally invasive glaucoma surgery aims to provide a safer and less-invasive means of reducing IOP compared with traditional surgery, with the goal of reducing the need for topical medications. The XEN gel stent is an ab-interno minimally invasive glaucoma surgery device that approaches intraocular pressure reduction by creating a subconjunctival drainage pathway. As with any new device there is lack of experience and knowledge about its long-term results in terms of efficacy, technique, and complications...
January 16, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/27977576/outcome-of-primary-trabeculotomy-ab-interno-trabectome-surgery-in-patients-with-steroid-induced-glaucoma
#11
MULTICENTER STUDY
Philip Ngai, Grace Kim, Garrick Chak, Ken Lin, Masahiro Maeda, Sameh Mosaed
To determine the efficacy and safety of Trabectome surgery on patients with steroid response, ranging from ocular hypertension refractory to maximal medical therapy to the development of steroid-induced glaucoma.A nonrandomized, nonblinded, retrospective study of 20 subjects with steroid response was conducted. All 20 eyes underwent Trabectome surgery alone. Nine subjects had steroid response with unremarkable visual field, 3 had mild steroid-induced glaucoma, and 8 had advanced steroid-induced glaucoma. Outcome measures included intraocular pressure (IOP), number of glaucoma medications, need for secondary glaucoma surgery, and steroid regimen...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27906813/truncation-of-in-situ-baerveldt-glaucoma-drainage-device-for-treatment-of-late-persistent-postoperative-hypotony
#12
Philip P Chen
PURPOSE: To describe a new technique to treat late persistent hypotony after Baerveldt glaucoma drainage device surgery. METHODS: Review of 2 cases treated with in situ truncation of one or both wings of the Baerveldt device, combined with permanent but releasable tube occlusion. RESULTS: Two eyes with persistent hypotony underwent in situ truncation of one or both wings of the Baerveldt device with resolution of hypotony. Recurrence of elevated intraocular pressure (IOP) in both cases required reversal of tube occlusion, after which the IOP has remained both well controlled and sufficiently elevated to avoid complications of hypotony over 13 and 43 months...
February 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/27905331/prevalent-practice-patterns-in-glaucoma-poll-of-indian-ophthalmologists-at-a-national-conference
#13
Nikhil Shreeram Choudhari, Vanita Pathak-Ray, Sushmita Kaushik, Prateep Vyas, Ronnie George
PURPOSE: The aim of this study is to explore and compare the prevailing practice patterns in the diagnosis and management of glaucoma among subspecialists and general ophthalmologists in India. MATERIALS AND METHODS: This is an interactive audience response system (ARS) based poll of ophthalmologists attending the annual conference of the Glaucoma Society of India in 2013. RESULTS: The information was obtained from 379 ophthalmologists (146 glaucoma specialists, 54 nonglaucoma subspecialists, and 179 general ophthalmologists)...
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27893525/outcomes-of-descemet-membrane-endothelial-keratoplasty-in-patients-with-previous-glaucoma-surgery
#14
Carolina Aravena, Fei Yu, Sophie X Deng
PURPOSE: To evaluate outcomes of Descemet membrane endothelial keratoplasty (DMEK) in eyes with previous trabeculectomy or a drainage device. METHODS: This is a retrospective study of 108 consecutive DMEK performed between October 2013 and December 2015. All eyes were divided into 3 groups: surgical treatment (ST) group, medical treatment (MT) group, and control group. Visual improvement, endothelial cell loss, and postoperative complications, including rejection, graft failure, and intraocular pressure elevation (≥25 mm Hg) were evaluated...
March 2017: Cornea
https://www.readbyqxmd.com/read/27875350/pediatric-glaucoma-review-of-recent-literature
#15
Annette Giangiacomo, Allen Beck
PURPOSE OF REVIEW: The purpose of this review is to update the clinician on the recent work in the field of pediatric glaucoma. RECENT FINDINGS: Using the iCare tonometer to measure intraocular pressure (IOP) in children is highly successful. New data from the Infant Aphakia Treatment Study show that after 5 years of follow-up the risk of developing glaucoma is similar between patients that receive initial intraocular lens implantation and those who are left aphakic...
March 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27871763/diplopia-in-medically-and-surgically-treated-patients-with-glaucoma
#16
Philip Y Sun, David A Leske, Jonathan M Holmes, Cheryl L Khanna
PURPOSE: To report the prevalence, type, and cause of diplopia in medically and surgically treated patients with glaucoma. DESIGN: Cohort study. PARTICIPANTS: A total of 195 adult patients with glaucoma treated in a glaucoma referral practice. METHODS: A total of 195 adult patients with glaucoma who had undergone surgical or medical management were prospectively enrolled. Forty-seven patients had undergone glaucoma drainage device (GDD) surgery (Baerveldt 350, Baerveldt 250 [Abbott Medical Optics, Abbott Park, IL], or Ahmed FP7 [New World Medical Inc, Rancho Cucamonga, CA]), 61 patients had undergone trabeculectomy, and 87 patients were medically treated...
February 2017: Ophthalmology
https://www.readbyqxmd.com/read/27860168/use-of-a-350-mm-2-baerveldt-glaucoma-drainage-device-to-maintain-vision-and-control-intraocular-pressure-in-dogs-with-glaucoma-a-retrospective-study-2013-2016
#17
Kathleen L Graham, David Donaldson, Francis A Billson, F Mark Billson
OBJECTIVE: To evaluate the 350-mm(2) Baerveldt glaucoma drainage device (GDD) in dogs with refractory glaucoma when modifications to address postoperative hypotony (extraluminal ligature; intraluminal stent) and the fibroproliferative response (intraoperative Mitomycin-C; postoperative oral colchicine and prednisolone) are implemented as reported in human ophthalmology. DESIGN: Retrospective case series. ANIMALS: Twenty-eight client-owned dogs (32 eyes) including seven dogs (nine eyes) with primary glaucoma and 21 dogs (23 eyes) with secondary glaucoma...
November 16, 2016: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27857488/porosity-of-bleb-capsule-declines-rapidly-with-fluid-challenge
#18
Surinder S Pandav, Craig M Ross, Faisal Thattaruthody, Ritambhra Nada, Nirbhai Singh, Natasha Gautam, Stephen Beirne, Gordon G Wallace, Mark B Sherwood, Jonathan G Crowston, Michael Coote
INTRODUCTION: The porosity of the fibrous capsule around a glaucoma drainage device (GDD) may be the most important functional attribute. The factors that determine capsular porosity are not well understood. Failed GDD surgeries are usually associated with thick impervious capsules and components of aqueous have been implicated in this process. PURPOSE: In this study, we interrogated the effect of passage of nonaqueous fluid on capsular porosity in mature (but aqueous naïve) blebs in a previously reported GDD model (the "Center for Eye Research Australia Implant")...
September 2016: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/27811572/complications-in-placement-of-a-glaucoma-drainage-device-in-a-patient-with-crest-syndrome
#19
Maria Q Husain, Oday Alsheikh
This case describes difficulty with conjunctival closure in an 80-year-old woman with CREST syndrome, a subset of systemic scleroderma. The patient underwent uneventful glaucoma drainage device implantation, but friability of the conjunctiva was noted during closure. Amniotic membrane was used to ensure secure closure, and the patient had a successful outcome. There is a paucity of existing studies on patients with CREST syndrome and their ocular findings. This report sheds light on ocular findings in this autoimmune disease and the necessity for alternative closure methods in special cases...
February 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/27790128/persistent-hypotony-associated-with-immunosuppressive-therapy-in-glaucoma-drainage-implant-surgery
#20
Susana Duch, Elena Milla, Oana Stirbu, David Andreu
PURPOSE: To describe the histopathology of non-valved implant capsules in three cases of persistent postoperative hypotony after the restrictive tube ligature was released in patients receiving immunosuppressive therapy. OBSERVATIONS: The macroscopic appearance of the capsules 3 and 4 months postoperatively was immature and loose. Microscopic examination disclosed extremely irregular thin tissue, with thicknesses ranging from 0.02 to 0.6 mm, depending on the capsular location studied...
September 2016: Case Reports in Ophthalmology
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