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Glaucoma drainage device

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https://www.readbyqxmd.com/read/27906813/truncation-of-in-situ-baerveldt-glaucoma-drainage-device-for-treatment-of-late-persistent-postoperative-hypotony
#1
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...
November 30, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27905331/prevalent-practice-patterns-in-glaucoma-poll-of-indian-ophthalmologists-at-a-national-conference
#2
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
#3
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...
November 23, 2016: Cornea
https://www.readbyqxmd.com/read/27875350/pediatric-glaucoma-review-of-recent-literature
#4
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 shows 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...
November 21, 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27871763/diplopia-in-medically-and-surgically-treated-patients-with-glaucoma
#5
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...
November 18, 2016: 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
#6
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
#7
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
#8
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...
November 2, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27790128/persistent-hypotony-associated-with-immunosuppressive-therapy-in-glaucoma-drainage-implant-surgery
#9
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
https://www.readbyqxmd.com/read/27782953/heterologous-human-donor-sclera-as-the-patch-graft-in-glaucoma-drainage-device-surgery
#10
Dimitrios Tsoukanas, Paraskevi Xanthopoulou, Alexandros C Charonis, Panagiotis Theodossiadis, Gerasimos Kopsinis, Theodoros Filippopoulos
No abstract text is available yet for this article.
October 25, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27755350/a-novel-method-of-extending-glaucoma-drainage-tube-tube-in-tube-technique
#11
Mark Yu-Ming Chiang, Jayne E Camuglia, Peng Tee Khaw
PURPOSE: To describe a new and simple technique of glaucoma tube extension that carries several advantages over previously described techniques. PATIENTS AND METHODS: A retrospective noncomparative case series of 3 patients (1 adult and 2 pediatric cases) with glaucoma tube retraction managed by the "tube-in-tube" technique. The follow-up duration ranges from 1 month to 3 years. RESULTS: Adequate tube position and length were seen in all cases throughout the follow-up period...
October 14, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27753757/outcomes-of-gonioscopy-assisted-transluminal-trabeculotomy-gatt-in-eyes-with-prior-incisional-glaucoma-surgery
#12
Davinder S Grover, David G Godfrey, Oluwatosin Smith, Wei Shi, William J Feuer, Ronald L Fellman
PURPOSE: To report on outcomes of gonioscopy-assisted transluminal trabeculotomy (GATT) in eyes with prior incisional glaucoma surgery. PATIENTS AND METHODS: A retrospective review was performed for all patients who underwent a GATT procedure with a history of prior incisional glaucoma surgery. RESULTS: Thirty-five eyes of 35 patients were treated. The mean age was 67.7 years. Nineteen eyes had a prior trabeculectomy, 13 eyes had a prior glaucoma drainage device, 4 eyes had a prior trabectome, and 5 eyes had prior endocyclophotocoagulation...
October 6, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27747118/combined-scleral-flap-with-donor-scleral-patch-graft-for-anterior-tube-placement-in-glaucoma-drainage-device-surgery
#13
Jea H Yu, Chuck Nguyen, Esmeralda Gallemore, Ron P Gallemore
Purpose. To report a new technique for anterior placement of tubes for glaucoma drainage devices to reduce the risk of tube erosions. Methods. Retrospective review of select cases of Ahmed Valve surgery combined with the novel method of a limbal-based scleral flap covered by a scleral patch graft to cover the tube at the entrance through the limbus. Intraoperative and postoperative illustrations are shown to highlight the method of tube placement. Results. In this retrospective case series, 3 patients are presented illustrating the technique...
2016: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/27726460/boston-type-i-keratoprosthesis-implantation-following-autologous-submandibular-gland-transplantation-for-end-stage-ocular-surface-disorders
#14
Jianjun Gu, Jiajie Zhai, Guiqing Liao, Jiaqi Chen
PURPOSE: To describe the results of Boston keratoprosthesis implantation in a patient with Stevens-Johnson syndrome following autologous submandibular gland transplantation. DESIGN: Observational case report. METHODS: We report the case of a man diagnosed with Stevens-Johnson syndrome. Autologous submandibular gland transplantation was performed in the right eye in 2008 to ameliorate tear film deficiency. Due to the improvement in the microenvironment of the ocular surface, Boston keratoprosthesis implantation was performed in the right eye in 2011...
October 11, 2016: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27703872/management-of-implant-plate-exposure-of-silicone-ahmed-glaucoma-valve-a-review-of-six-cases
#15
Avik Kumar Roy, Sirisha Senthil
Objective: To describe the management options for exposed silicone Ahmed glaucoma valve (AGV) implant. Methods: This was carried out as a retrospective chart review at a tertiary care eye hospital in Southern India. Medical records of six subjects managed for AGV exposure from 2006 to 2013 were reviewed. Results: All six eyes had explantation of the AGV and 3 of them had reimplantation in a different quadrant at a later date and the other 3 eyes were managed medically. All eyes had well controlled IOP at the last follow-up...
2016: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/27661995/xen-augmented-baerveldt-a-new-surgical-technique-for-refractory-glaucoma
#16
Elisa D'Alessandro, Jacopo M Guidotti, Kaweh Mansouri, André Mermoud
BACKGROUND: Glaucoma drainage devices have traditionally been reserved for patients with refractory glaucoma. However, these devices are prone to various sight-threatening complications. To prevent hypotony after placement of the Baerveldt tube, surgeons traditionally tie the tube with an absorbable suture until encapsulation occurs around the plate. We hypothesized that combining the XEN tube, placing it in the anterior chamber and connecting it to the Baerveldt tube posteriorly, outside the anterior chamber, would minimize 2 main potentially blinding complications: hypotony and corneal disease...
September 21, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27661070/contralateral-autologous-corneal-transplantation-experience-in-mexico-city
#17
Ana L Perez-Balbuena, David Ancona-Lezama, Jaime D Martinez, Sarai Delgado-Pelayo
PURPOSE: The aim of this study is to expand the limited knowledge regarding autologous contralateral penetrating keratoplasty. METHODS: We report the retrospective outcomes of patients who received autokeratoplasty and contralateral opaque corneas in the donor eye at a tertiary care ophthalmology hospital in Mexico City. RESULTS: Eleven patients received autokeratoplasty and contralateral opaque corneas in the donor eye at our center from 2010 to 2015...
September 21, 2016: Cornea
https://www.readbyqxmd.com/read/27614591/safety-of-concurrent-boston-type-i-keratoprosthesis-and-glaucoma-drainage-device-implantation
#18
Tamara L Lenis, Stephan Y Chiu, Simon K Law, Fei Yu, Anthony J Aldave
PURPOSE: To evaluate the safety of concurrent Boston type I keratoprosthesis (KPro) and glaucoma drainage device (GDD) implantation. DESIGN: Retrospective comparative study of a consecutive cohort of patients. SUBJECTS: Patients who underwent KPro implantation by a single surgeon (A.J.A.) with or without 1 concurrent Ahmed GDD (New World Medical, Inc., Rancho Cucamonga, CA) implantation between January 1, 2005, and January 31, 2015, were included...
September 7, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27612183/design-and-performance-of-a-large-lumen-glaucoma-drainage-device
#19
J L Olson, S Groman-Lupa
PurposeWe report the in vivo testing of a large-lumen glaucoma drainage (LL-GDD) device equipped with a flow regulator. The device's membrane can be non-invasively opened with laser in the postoperative period to adjust aqueous flow and intraocular pressure.MethodsThe initial LL-GDD prototypes were constructed using 22 G silicone angiocatheters cut down to size. A 10 nm PVDF membrane was then affixed to the end using cyanoacrylate. The LL-GDD was tested first in a model eye equipped with ports for infusion and pressure measurement and in New Zealand rabbits...
September 9, 2016: Eye
https://www.readbyqxmd.com/read/27599171/simultaneous-implantation-of-an-ahmed-and-baerveldt-glaucoma-drainage-device-for-uncontrolled-intraocular-pressure-in-advanced-glaucoma
#20
Veena S Rao, Joseph Christenbury, Paul Lee, Rand Allingham, Leon Herndon, Pratap Challa
PURPOSE: To evaluate efficacy and safety of a novel technique, simultaneous implantation of Ahmed and Baerveldt shunts, for improved control of intraocular pressure (IOP) in advanced glaucoma with visual field defects threatening central fixation. PATIENTS AND METHODS: Retrospective case series; all patients receiving simultaneous Ahmed and Baerveldt implantation at a single institution between October 2004 and October 2009 were included. Records were reviewed preoperatively and at postoperative day 1, week 1, month 1, month 3, month 6, year 1, and yearly until year 5...
September 2, 2016: Journal of Glaucoma
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