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Glaucoma drainage device

Hamed Esfandiari, Tarek Shazly, Susannah Waxman, Sushma Kola, Kevin B Kaplowitz, Eric N Brown, Nils A Loewen
PURPOSE: To apply propensity score matching to Ahmed glaucoma drainage implants (AGI) to trabectome-mediated ab interno trabeculectomy (AIT). Recent data suggests that AIT can produce results similar to AGI traditionally reserved for more severe glaucoma. METHODS: AGI and AIT patients with at least one year of follow-up were included. The primary outcome measures were intraocular pressure (IOP), glaucoma medications, and a Glaucoma Index (GI) score. GI reflected glaucoma severity based on visual field, the number of preoperative medications, and preoperative IOP...
April 2, 2018: Journal of Glaucoma
Mehmet Yakin, Umit Eksioglu, Zuleyha Yalniz-Akkaya, Selma Uzman, Evin Singar-Ozdemir, Kemal Gultekin, Gulizar Demirok, Ilgaz Yalvac, Firdevs Ornek, Ayse Burcu
PURPOSE: To assess and compare the outcomes of trabeculectomy with and without antimetabolites (AMs) and glaucoma drainage devices (GDDs) in the management of elevated intraocular pressure (IOP) after penetrating keratoplasty (PK). METHODS: Data of 84 eyes of 81 patients who underwent trabeculectomy (12 eyes without an AM and 42 eyes with an AM) or GDD implantation (30 eyes) after PK were reviewed retrospectively. The main outcome measures were IOP control, corneal graft survival, and postoperative ocular complications...
March 28, 2018: Cornea
Mohammad Pakravan, Vahid Reza Hekmat, Parto Pakravan, Kiana Hassanpour, Hamed Esfandiari
PURPOSE: To introduce a new technique of short tunnel small flap graft-free glaucoma drainage device implantation and report our early experience. METHODS: In a retrospective study, patients with uncontrolled primary open-angle glaucoma underwent short tunnel small flap graft-free Ahmed glaucoma valve implantation. In this technique, plate is sutured 8-10 mm posterior to the limbus and a partial thickness flap is made at 1 or 11 o'clock position, 1 mm posterior the limbus...
March 1, 2018: European Journal of Ophthalmology
Lauren S Blieden, Margaret Y Wang, Kishan Patel, Alice Z Chuang, Laura A Baker, Nicholas P Bell, Robert M Feldman
No abstract text is available yet for this article.
March 23, 2018: Journal of Glaucoma
Kanika Jain, Suneeta Dubey, Julie Pegu
No abstract text is available yet for this article.
March 23, 2018: Journal of Glaucoma
Grace M Wang, Daniel Thuente, Brenda L Bohnsack
Purpose: Congenital ectropion uvea is a rare anomaly, which is associated with open, but dysplastic iridocorneal angles that cause childhood glaucoma. Herein, we present 3 cases of angle-closure glaucoma in children with congenital ectropion uvea. Observations: Three children were initially diagnosed with unilateral glaucoma secondary to congenital ectropion uvea at 7, 8 and 13 years of age. The three cases showed 360° of ectropion uvea and iris stromal atrophy in the affected eye...
June 2018: American Journal of Ophthalmology Case Reports
Vivian L Qin, Mona Kaleem, Felipe F Conti, Edward J Rockwood, Annapurna Singh, Shalini Sood-Mendiratta, Jonathan E Sears, Fabiana Q Silva, Jonathan Eisengart, Rishi P Singh
PURPOSE: To compare long-term surgical outcomes and complications of pars plana (PP) tube implantation with conventional anterior chamber (AC) tube implantation. METHODS: Records of patients undergoing glaucoma tube implant surgery at a single institution between 2007-2015 were retrospectively reviewed. Eyes were matched for glaucoma diagnosis and patient age. Demographics, baseline characteristics, and treatment outcomes were recorded. Surgical success was defined as intraocular pressure (IOP) between 6-21▒mm Hg, no subsequent glaucoma surgeries performed, and at least light perception vision...
March 8, 2018: Journal of Glaucoma
Wojciech Lubiński, Karol Krzystolik, Wojciech Gosławski, Leszek Kuprjanowicz, Maciej Mularczyk
BACKGROUND: Inflammation associated with biomaterials of Ahmed® glaucoma drainage devices may cause the formation of a capsule around the device and can thus have a significant influence on the level of intraocular pressure reduction. OBJECTIVES: The objective of this study was to compare the clinical outcomes after the implantation of a polypropylene or silicone Ahmed® glaucoma valve in patients with neovascular glaucoma. MATERIAL AND METHODS: In the study, 27 eyes with neovascular glaucoma (group 1) received silicon Ahmed® valves and 23 eyes (group 2) received polypropylene valves...
January 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Vanita Pathak Ray, Divya P Rao
PURPOSE: To report the early outcomes in terms of efficacy and safety of a new, indigenously manufactured, low-cost non-valved drainage device (Aurolab Aqueous Drainage Implant, AADI) in the management of refractory glaucomas in the Indian population. METHODS: Retrospective review of consecutive patients >12years, who underwent glaucoma drainage device surgery (GDD) via AADI, by a single fellowship-trained surgeon, between January 2014 and December 2016, who had at least 3 months of documented post-op follow-up...
March 2, 2018: Journal of Glaucoma
Michelle Go, J Niklas Ulrich, David Fleischman
Purpose: To report a rare complication of non-valved glaucoma drainage device surgery. Observations: An 85-year-old pseudophakic white male presented with painless vision loss and bloody tears. He was 5 weeks removed from uncomplicated non-valved glaucoma drainage device (Baerveldt 101-350, [AMO, Santa Clara, CA]). There was serosanguinous discharge without apparent source and a 25% layering hyphema in the anterior chamber. The tube was unobstructed in the anterior chamber and not abutting the iris...
April 2017: American Journal of Ophthalmology Case Reports
Claudia Windhövel, Lisa Harder, Jan-Peter Bach, Michael Teske, Niels Grabow, Thomas Eickner, Ulf Hinze, Boris Chichkov, Ingo Nolte
Silicones are widely used in medical applications. In ophthalmology, glaucoma drainage devices are utilized if conservative therapies are not applicable or have failed. Long-term success of these devices is limited by failure to control intraocular pressure due to fibrous encapsulation. Therefore, different medical approved silicones were tested in vitro for cell adhesion, cell proliferation and viability of human Sclera (hSF) and human Tenon fibroblasts (hTF). The silicones were analysed also depending on the sample preparation according to the manufacturer's instructions...
February 27, 2018: Materials
André Rosentreter, Alexandra Lappas, Randolf Alexander Widder, Maged Alnawaiseh, Thomas Stefan Dietlein
BACKGROUND: To report the results of the repair of conjunctival erosions resulting from glaucoma drainage device surgery using collagen-glycosaminoglycane matrices (CGM). METHODS: Case series of 8 patients who underwent revision surgery due to conjunctival defects with exposed tubes through necrosis of the overlying scleral flap and conjunctiva after Baerveldt drainage device surgery. The defects were repaired by lateral displacement of the tube towards the sclera, with a slice of a CGM as a patch, covered by adjacent conjunctiva...
February 27, 2018: BMC Ophthalmology
Cheryl L Khanna, David A Leske, Jonathan M Holmes
Importance: Health-related quality of life (HRQOL) is often reduced with glaucoma, but associated factors are poorly understood. Objective: To determine factors associated with reduced HRQOL in medically and surgically treated patients with glaucoma. Design, Setting, and Participants: Prospective cohort study at a tertiary referral glaucoma practice, with 160 consecutive, prospectively enrolled medically or surgically treated adult patients with glaucoma...
February 22, 2018: JAMA Ophthalmology
Carla J Osigian, Sara Grace, Maria P Fernandez, Camila V Ventura, Susan Azar, Ta C Chang, Elizabeth Hodapp, Sander R Dubovy, Audina Berrocal
Purpose: Retinal changes secondary to hypotony are usually described as wrinkling or folding of the inner portion of the choroid, the retinal pigment epithelium (RPE), and the outer retinal layers in the macular area due to scleral wall collapse. We describe a new retinal finding in children with suspected hypotony after implantation of Baerveldt Glaucoma Implant (BGI). Observations: Four patients in our series developed significant RPE defects after BGI implant...
March 2018: American Journal of Ophthalmology Case Reports
Justin D Harvey, Ronald L Gross, Brian D McMillan
Purpose: This reports a case using fibrin glue to secure a glaucoma drainage device plate to the sclera where there is a concern with the use of suture. Observations: A 13-year-old patient with congenital aniridia and associated glaucoma refractory to topical medications underwent implantation of a glaucoma drainage device (GDD) for improved intraocular pressure (IOP) control. The patient had substantial scleral thinning with staphyloma formation, potentially making the use of traditional suturing techniques problematic...
March 2018: American Journal of Ophthalmology Case Reports
Blake K Williamson, Nathan M Hawkey, Diane A Blake, Joshua W Frenkel, Kevin P McDaniel, Justin K Davis, Celine Satija, Alex Beazer, Suraj Dhungana, James Carlson, Susan McRitchie, Ramesh S Ayyala
Purpose: Glaucoma drainage device (GDD) implantation can lead to corneal decompensation. We evaluated changes over time in oxygen tension and in the metabolic environment of the aqueous humor after GDD implantation in the rabbit eye. Methods: Ahmed Glaucoma Valves were implanted in the left eyes of eight male New Zealand white rabbits. Right eyes were used as a control. Oxygen tension was measured immediately before surgery and at 1 and 2 months postoperation. Aqueous humor was collected from the surgical and control eyes at 1, 2, and 5 months postoperation...
February 2018: Translational Vision Science & Technology
Andre Grixti, Raman Malhotra
To provide an extensive literature review on the clinical indications of oral mucosa grafts (OMG) and minor salivary gland grafts (MSGG) in periorbital reconstruction together with safe practice graft harvesting techniques to minimize donor-site morbidity. A literature review was performed by searching the databases of PUBMED, EMBASE, and COCHRANE library using the keywords: minor salivary glands; oral mucosal graft; orbit; and eye. The bibliographies of the pertinent articles were examined for additional papers...
February 6, 2018: Orbit
Kathleen L Graham, Evelyn J S Hall, Charles Caraguel, Andrew White, Francis A Billson, F Mark Billson
OBJECTIVE: To compare outcomes following trans-scleral cyclophotocoagulation (TSCP) and 350-mm2 Baerveldt implantation in the treatment of canine refractory glaucoma. DESIGN: Retrospective case study. CASE SELECTION: Client owned dogs undergoing surgical treatment of glaucoma within a veterinary referral hospital. PROCEDURES: Eighty-six glaucoma surgeries were performed on 83 eyes (69 dogs) diagnosed with primary or secondary glaucoma...
January 31, 2018: Veterinary Ophthalmology
Xiang-Ji Li, Lin Xie, Fu-Sheng Pan, Yong Wang, Hong Liu, Yu-Rong Tang, Cindy Ml Hutnik
Technological advances in glaucoma have challenged the traditional treatment paradigm. Historically incisional surgery has been used in cases of advanced disease and/or uncontrolled intraocular pressures resistant to medical or laser interventions. More recently, perhaps due to advancements in imaging, surgery has been suggested to be beneficial earlier in the treatment paradigm. Despite these trends, surgical manipulation of the tissues and unpredictability of wound healing continue to result in surgical failure...
2018: International Journal of Ophthalmology
Jennifer I Lim, Lindsay Machen, Andrea Arteaga, Faris I Karas, Robert Hyde, Dingcai Cao, Marcia Niec, Thasarat S Vajaranant, M Soledad Cortina
PURPOSE: To determine whether 1-year visual and anatomical results after surgery combining pars plana vitrectomy, Boston keratoprosthesis, and a glaucoma drainage device as needed are similar, better, or worse than Boston keratoprosthesis initial implantation alone. METHODS: We performed a retrospective review of adult patients undergoing Boston keratoprosthesis at our institution. Visual acuity outcomes, anatomical results, and complication rates of patients undergoing combination surgery (including pars plana vitrectomy and a posterior glaucoma drainage device) were compared with those undergoing keratoprosthesis placement alone...
January 23, 2018: Retina
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