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Boston keratoprosthesis

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https://www.readbyqxmd.com/read/28662941/no-light-perception-outcomes-following-boston-keratoprosthesis-type-1-surgery
#1
Adam K Muzychuk, Georges M Durr, Julien J Shine, Marie-Claude Robert, Mona Harissi-Dagher
PURPOSE: To determine the incidence rate, principal causes, and clinical course of eyes developing no light perception (NLP) visual acuity (VA) following Boston Keratoprosthesis (B-KPro) type 1 surgery. Secondary objectives include determining the incidence rate, relative risk (RR), and survival probability with respect to NLP acuity among eyes with congenital aniridia. DESIGN: Retrospective, interventional case series. SUBJECTS: All patients undergoing B-KPro type 1 surgery between Oct...
June 26, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28614155/the-role-of-the-back-plate-in-angle-anatomy-with-the-boston-type-i-keratoprosthesis
#2
Elise V Taniguchi, Eleftherios I Paschalis, Alja Crnej, Ai Ren, Kathryn A Colby, James Chodosh, Louis R Pasquale, Lucy Q Shen, Claes H Dohlman, Andrea Cruzat
PURPOSE: To quantitatively evaluate the angle anatomy in eyes with the Boston type I keratoprosthesis (B-KPro) differing in the back plate (BP) material and size using anterior segment optical coherence tomography. METHODS: B-KPro eyes with poly(methyl methacrylate) (PMMA) (7.0 and 8.5 mm) and titanium (7.0, 8.5, and 9.5 mm) BPs were imaged with anterior segment optical coherence tomography. The angle opening distance at 500 μm from the scleral spur (AOD500), trabecular iris surface area at 500 μm from the scleral spur (TISA500), and trabecular iris angle at 500 μm from the scleral spur (TIA500) were measured...
June 13, 2017: Cornea
https://www.readbyqxmd.com/read/28586930/-mid-and-longterm-experiences-with-the-boston-keratoprosthesis-the-cologne-and-salzburg-perspective
#3
Friederike Schaub, Björn O Bachmann, Orang Seyeddain, Sarah Moussa, Herbert A Reitsamer, Claus Cursiefen
Background Eyes with severe corneal opacifications and insufficient prognosis for high-risk corneal transplantation can be considered for the implantation of a Boston-keratoprosthesis. Since 2013, this technique of "artificial" corneal replacement is provided to high-risk eyes at the Department of Ophthalmology, University of Cologne and for 9 years at the University of Salzburg. In the meantime, a type I Boston keratoprosthesis (BI-KPro) has been implanted in 24 eyes in Cologne and in 28 eyes in Salzburg. Methods In this article, results and complications according to BI-KPro are discussed, both from the literature in PubMed, as well as from our own experiences...
June 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28529825/innovative-approaches-to-glaucoma-management-of-boston-keratoprosthesis-type-1
#4
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/28528012/impact-of-total-pars-plana-vitrectomy-on-postoperative-complications-in-aphakic-snap-on-type-1-boston-keratoprosthesis
#5
Victor L Perez, Ella H Leung, Audina M Berrocal, Thomas A Albini, Jean Marie Parel, Guillermo Amescua, Eduardo C Alfonso, Tayyeba K Ali, Allister Gibbons
PURPOSE: To determine the impact of total pars plana vitrectomies (PPVs) with peripheral shaving of the vitreous base on the rates of postoperative complications in patients with aphakic, snap-on type I Boston keratoprostheses (KPros). DESIGN: Retrospective, consecutive case series. PARTICIPANTS: A total of 48 eyes in 46 patients with implantation of aphakic, snap-on type 1 Boston KPros performed at a tertiary care facility between January 1, 2007, and December 31, 2013, were included...
May 17, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28495905/long-term-outcomes-of-the-boston-type-i-keratoprosthesis-in-eyes-with-previous-herpes-simplex-virus-keratitis
#6
Melinda Fry, Carolina Aravena, Fei Yu, Jaffer Kattan, Anthony J Aldave
PURPOSE: To report the long-term outcomes of the Boston type I keratoprosthesis (Kpro) in eyes with prior herpes simplex virus (HSV) keratitis. METHODS: Retrospective review of all Kpro procedures performed by a single surgeon from 1 May 2004 to 1 January 2015. RESULTS: 13 of 173 Kpro procedures were performed in 11 eyes with prior HSV keratitis. There was not a significant difference in the percentage of eyes with and without prior HSV keratitis with preoperative (9% vs 8%, p=1...
May 11, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28484851/-long-term-outcome-of-keratoprosthesis-with-biological-support
#7
K Hille
BACKGROUND: In severe Sicca syndrome and limbal stem cell deficiency, vision can be restored by an artificial optical implant into the cornea (keratoprosthesis, KPro). After multiple efforts to achieve long-lasting corneal fixation of such an optical implant, two methods have become established: KPro with biological support, such as osteo-odonto-keratoprosthesis (OOKP) made from the root of patient's own tooth or osteo-keratoprosthesis (OKP), made from cortical bone of the patient's tibia; and the Boston KPro...
May 8, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28476052/measuring-forward-light-scatter-by-the-boston-keratoprosthesis-in-various-configurations
#8
Musa Abdelaziz, Claes H Dohlman, Rony R Sayegh
PURPOSE: Light scatter results in degradation of visual function. An optical bench model was used to identify the origins of scatter in the setting of a Boston keratoprosthesis (KPro). The effect of various modifications in the device design and light-blocking configurations was explored. METHODS: A KPro was mounted on a contact lens holder on a bench, and forward light scatter was recorded with a camera attached to a rotating goniometer arm. Scattered light was recorded at different angles for different KPro modifications, and the point-spread function (PSF) curves were recorded...
June 2017: Cornea
https://www.readbyqxmd.com/read/28457284/corneal-surgery-in-the-flying-eye-hospital-characteristics-and-visual-outcome
#9
Javed Hussain Farooqui, Emile Sharifi, Ahmed Gomaa
OBJECTIVE: The Flying Eye Hospital (FEH) of ORBIS International is a capacity-building platform that trains ophthalmologists throughout the developing world on-board a fully functional eye hospital based in an airplane and in the local hospitals of developing countries. Corneal blindness (CB) is the second leading cause of blindness in most developing countries. Treatment of existing global CB requires effective eye banking and surgeons trained in corneal transplant. ORBIS International has programs that addressed both those needs...
April 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28441214/the-osteo-odonto-keratoprosthesis
#10
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/28383302/the-boston-keratoprosthesis
#11
REVIEW
Hajirah N Saeed, Swapna Shanbhag, James Chodosh
PURPOSE OF REVIEW: The Boston keratoprosthesis (BKPro) is often the only hope for visual rehabilitation in severe corneal disease. Since Food and Drug Administration approval of the device in 1992, there have been a series of advances in its design, surgical techniques, and postoperative care, which have widened its applicability and decreased associated complications. The purpose of this review is to highlight the indications, management, outcomes, and advances in the BKPro literature...
July 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28237154/outcomes-of-bilateral-sequential-implantation-of-the-boston-keratoprosthesis-type-1
#12
COMPARATIVE STUDY
Louis Vaillancourt, Eleni Papanagnu, Marwan Elfekhfakh, Raphaelle Fadous, Mona Harissi-Dagher
OBJECTIVE: To evaluate the risks and benefits of sequential bilateral Boston type 1 keratoprosthesis (KPro) implantation for bilateral corneal blindness. DESIGN: Comparative retrospective study. PARTICIPANTS: Patients who underwent a sequential bilateral KPro surgery. METHODS: All 11 patients who underwent sequential bilateral KPro surgery at the Centre Hospitalier de l'Université de Montréal between October 2008 and October 2011 were recruited...
February 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28129294/boston-type-1-keratoprosthesis-visual-outcomes-device-retention-and-complications
#13
John S Parker, Robert E Morris, David M Rooney, Jack S Parker
No abstract text is available yet for this article.
January 26, 2017: Cornea
https://www.readbyqxmd.com/read/28080168/corneal-melt-after-boston-keratoprosthesis-clinical-presentation-management-outcomes-and-risk-factor-analysis
#14
Soumaya Bouhout, Marie-Claude Robert, Sousans Deli, Mona Harissi-Dagher
PURPOSE: To determine the presentation, risk factors, and outcomes of keratolysis after Boston type I keratoprosthesis (B-KPro). METHODS: Retrospective chart review. RESULTS: A total of 16 (14%) of the 110 eyes (96 patients) which underwent B-KPro implantation developed keratolysis at an average 20 ± 11 months. Retroprosthetic membrane (RPM), infectious keratitis, and corneal dellen were identified in 31%, 25%, and 13% of corneal melts, respectively...
January 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28079656/endoscopic-cyclophotocoagulation-for-the-treatment-of-glaucoma-in-boston-keratoprosthesis-type-ii-patient
#15
Linda Yi-Chieh Poon, James Chodosh, Demetrios G Vavvas, Claes H Dohlman, Teresa C Chen
We describe the surgical technique of endoscopic cyclophotocoagulation in a Boston keratoprosthesis type II patient. This patient with ocular cicatricial pemphigoid had pars plana endoscopic cyclophotocoagula through wounds created in the eyelids.
April 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/27994401/streptococcus-agalactiae-endophthalmitis-in-boston-keratoprosthesis-in-a-patient-with-steven-johnson-syndrome
#16
Humoud M Al-Otaibi, Mohammed Talea, Omar Kirat, Donald U Stone, William N May, Igor Kozak
A 25-year-old Syrian male with a previous episode of Stevens-Johnson syndrome with bilateral corneal cicatrization previously underwent surgery for Type 1 Boston Keratoprosthesis (K-Pro). Sixteen months after the K-Pro surgery, the patient presented with decreased vision to hand motion and microbial keratitis of the graft around the K-Pro with purulent discharge. Corneal scrapings were nonrevealing. B-scan in 3 days showed increased debris in the vitreous cavity and thickened retinochoroidal layer. Intravitreal tap and injections of vancomycin and ceftazidime were performed...
October 2016: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/27993268/the-boston-keratoprosthesis-highs-and-lows-of-intraocular-pressure-and-outcomes
#17
EDITORIAL
Keith H Baratz, Kenneth M Goins
No abstract text is available yet for this article.
January 2017: Ophthalmology
https://www.readbyqxmd.com/read/27937038/boston-keratoprosthesis-for-idiopathic-limbal-stem-cell-deficiency
#18
Ashik Mohamed, Ritu Shah, Virender S Sangwan
No abstract text is available yet for this article.
December 12, 2016: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27755287/biofilm-formation-on-bandage-contact-lenses-worn-by-patients-with-the-boston-type-1-keratoprosthesis-a-pilot-comparison-study-of-prophylactic-topical-vancomycin-15-mg-ml-and-linezolid-0-2
#19
Asim V Farooq, Joshua H Hou, Sarmad Jassim, Zeeshan Haq, Elmer Y Tu, Jose de la Cruz, Maria S Cortina
OBJECTIVES: To determine the rate of biofilm formation on bandage contact lenses worn by patients with the Boston type 1 keratoprosthesis (K-Pro) while on prophylactic topical vancomycin versus linezolid. METHODS: Patients wearing a bandage contact lens (BCL) with a K-Pro were eligible for enrollment. After irrigation of the ocular surface with 5% povidone-iodine solution, each patient was placed on either topical vancomycin 15 mg/mL or linezolid 0.2% BID for one month...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27726460/boston-type-i-keratoprosthesis-implantation-following-autologous-submandibular-gland-transplantation-for-end-stage-ocular-surface-disorders
#20
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
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