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Boston keratoprosthesis

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https://www.readbyqxmd.com/read/29440740/boston-keratoprosthesis-type-1-outcomes-of-the-first-38-cases-performed-at-moorfields-eye-hospital
#1
Chameen Samarawickrama, Nicholas Strouthidis, Mark R Wilkins
PURPOSE: To evaluate outcomes of Boston keratoprosthesis type 1 (K-Pro) surgery in a cohort of high-risk patients at Moorfields Eye Hospital. Our patients were referred to us at the end-point of their ocular disease. METHODS: A retrospective review of all K-Pro surgery performed between March 2011 and July 2015 with a minimum follow-up of 12 months. RESULTS: 39 eyes of 38 patients were included. Mean follow-up was 28.4 months (range: 12-56)...
February 14, 2018: Eye
https://www.readbyqxmd.com/read/29408907/five-year-outcomes-of-boston-type-i-keratoprosthesis-as-primary-versus-secondary-penetrating-corneal-procedure-in-a-matched-case-control-study
#2
Kai B Kang, Faris I Karas, Ruju Rai, Joelle A Hallak, Joann J Kang, Jose de la Cruz, Maria S Cortina
Despite improved retention and reduced complication rates paving the way for the current expansion of applications and surge in prevalence for the Boston type I Keratoprosthesis (KPro), the most frequent indication for its implantation today remains prior graft failure. The purpose of this study is to evaluate the long-term outcomes of primary KPro and compare to secondary implantation in a matched cohort study. This study included patients who underwent KPro implantation in a single center by two surgeons between July 2008 and October 2014...
2018: PloS One
https://www.readbyqxmd.com/read/29390260/paraproteinemic-keratopathy-in-monoclonal-gammopathy-of-undetermined-significance-treated-with-primary-keratoprosthesis-case-report-histopathologic-findings-and-world-literature-review
#3
Homer H Chiang, Rebekah S Wieland, Thomas S Rogers, Pamela C Gibson, George Atweh, Gregory McCormick
RATIONALE: We report a case of paraproteinemic keratopathy associated with monoclonal gammopathy of undetermined significance, treated with keratoprosthesis as a primary penetrating procedure. Histopathological findings and a world literature review are presented. PATIENT CONCERNS: A 74 year old female recently diagnosed with monoclonal gammopathy undetermined significance presented with progressive blurry vision bilaterally. DIAGNOSES: Examination revealed corneal opacities consistent with paraproteinemic keratopathy...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29370031/comparison-of-visual-and-anatomical-outcomes-of-eyes-undergoing-type-i-boston-keratoprosthesis-with-combination-pars-plana-vitrectomy-with-eyes-without-combination-vitrectomy
#4
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
https://www.readbyqxmd.com/read/29260063/results-with-the-boston-type-i-keratoprosthesis-after-acanthamoeba-keratitis
#5
Albert Santos, Luzia Diegues Silva, Luciene Barbosa de Sousa, Denise de Freitas, Lauro Augusto de Oliveira
Purpose: To report the outcomes of implantation of the Boston Type I keratoprosthesis in three patients with Acanthamoeba keratitis (AK), a severe infection that can lead to significant visual loss. Observations: Case series reporting three patients with difficult cases of AK that needed multiple corneal transplantations and glaucoma surgeries. All patients were implanted with the Boston Type I keratoprosthesis device. The main outcomes measure were the visual function and anatomical retention after implantation of the Boston Type I keratoprosthesis...
June 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29219955/-on-the-capability-and-nomenclature-of-the-boston-keratoprosthesis-type-ii
#6
M Zarei-Ghanavati, A Shalaby Bardan, C Liu
No abstract text is available yet for this article.
December 8, 2017: Eye
https://www.readbyqxmd.com/read/29219899/clinical-outcomes-using-oversized-back-plates-in-type-i-boston-keratoprosthesis
#7
Aaron R Kaufman, Andrea Cruzat, Kathryn A Colby
OBJECTIVES: To examine clinical outcomes of oversized titanium back plates in type I Boston keratoprosthesis (KPro) implantation. METHODS: Retrospective study of 22 sequential eyes (20 patients) undergoing type I KPro implantation with an oversized titanium back plate (larger than trephined wound diameter by 1.0 mm or more), performed by a single surgeon (K.A.C.) from June 2010 to November 2014. Data were collected regarding preoperative eye characteristics, surgical details, and postoperative clinical outcomes...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29140862/retroprosthetic-membrane-formation-in-boston-keratoprosthesis-a-case-control-matched-comparison-of-titanium-versus-pmma-backplate
#8
Rushi K Talati, Joelle A Hallak, Faris I Karas, Jose de la Cruz, M Soledad Cortina
PURPOSE: Retroprosthetic membrane (RPM) formation is the most common complication after Boston type 1 keratoprosthesis (KPro) implantation. It affects visual acuity and can predispose to corneal melt. Two KPro backplate materials are available: titanium and polymethyl methacrylate (PMMA). This study investigates the influence of the KPro backplate material on visually significant RPM formation. METHODS: A retrospective case-control-matched study involving 40 patients; 20 eyes implanted with a titanium backplate KPro were case-matched with 20 eyes implanted with a PMMA backplate KPro between 2007 and 2015 with 1-year minimum follow-up...
November 14, 2017: Cornea
https://www.readbyqxmd.com/read/29099638/type-1-boston-keratoprosthesis-for-limbal-stem-cell-deficiency-in-epidermolysis-bullosa
#9
N Geetha Sravani, Ashik Mohamed, Virender S Sangwan
No abstract text is available yet for this article.
November 3, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29049679/fungal-keratitis-after-boston-keratoprosthesis
#10
Takashi Ono, Takuya Iwasaki, Kazunori Miyata
No abstract text is available yet for this article.
October 12, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29043440/-boston-keratoprosthesis-73%C3%A2-eyes-from-germany-an-overview-of-experiences-from-two-centers
#11
F Schaub, I Neuhann, P Enders, B O Bachmann, B Koller, T Neuhann, C Cursiefen
BACKGROUND: The Boston Keratoprosthesis (B-KPro) is a therapeutic option for corneal replacement for visual rehabilitation in eyes with poor a prognosis for penetrating keratoplasty (high-risk eyes). Since 2009, this approach has been used in the MVZ Prof. Neuhann, Munich, and since 2013 also at the Department of Ophthalmology, University of Cologne. An overview of results from the first 73 eyes in these departments is presented. METHODS: All recipient eyes of both centers which received a B-KPro type I (BI-KPro) between November 2009 and March 2017 were included...
October 17, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28990998/intermediate-term-and-long-term-outcomes-with-the-boston-type-1-keratoprosthesis-in-aniridia
#12
Kevin J Shah, Albert Y Cheung, Edward J Holland
PURPOSE: To report the intermediate- and long-term visual outcomes and complications with the Boston type 1 keratoprosthesis (KPro) for the management of aniridic keratopathy. METHODS: A retrospective chart review of 46 eyes of 34 patients (20 females and 14 males) with aniridic keratopathy who underwent Boston type 1 KPro surgery by a single surgeon from 2004 to 2012 with minimum 2-year follow-up was conducted. Preoperative, intraoperative, and postoperative parameters were collected and analyzed...
October 5, 2017: Cornea
https://www.readbyqxmd.com/read/28990994/long-term-visual-outcomes-complications-and-retention-of-the-boston-type-i-keratoprosthesis
#13
Carolina Aravena, Fei Yu, Anthony J Aldave
PURPOSE: To report the long-term outcomes of the Boston type I keratoprosthesis (KPro). METHODS: Data were collected regarding preoperative characteristics, surgical procedure(s) performed, and postoperative outcomes of patients who underwent KPro implantation from May 1, 2004, to May 1, 2011, and were followed for 5 years after surgery. RESULTS: Seventy-four KPro procedures were performed in 58 eyes (55 patients), with more than 1 KPro implanted in 10 eyes...
October 5, 2017: Cornea
https://www.readbyqxmd.com/read/28984794/the-use-of-povidone-iodine-in-ophthalmology
#14
REVIEW
Andrzej Grzybowski, Piotr Kanclerz, William G Myers
PURPOSE OF REVIEW: Povidone-iodine (PVI) is a disinfectant and antiseptic agent used for preoperative preparation of the skin and mucous membranes, as well as for the treatment of contaminated wounds. Currently regimens for prophylaxis against postsurgical endophthalmitis are being modified, including a total withdrawal of antibiotics in intravitreal injections. The aim of this study was to evaluate the use of PVI in ophthalmology. RECENT FINDINGS: As a result of its broad spectrum of microbicidal activity, PVI is routinely used in ophthalmic surgery...
January 2018: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28944307/posterior-pole-retinal-detachment-due-to-a-macular-hole-in-a-patient-with-a-boston-keratoprosthesis
#15
Daniel Gologorsky, Basil K Williams, Harry W Flynn
PURPOSE: To describe the clinical course of a patient with a Boston Keratoprosthesis type I who developed a localized posterior pole retinal detachment secondary to a macular hole. OBSERVATIONS: A 73-year-old patient with a Boston Keratoprosthesis developed a localized posterior pole retinal detachment secondary to a macular hole. The retinal detachment was repaired with a 23-gauge pars plana vitrectomy, membrane peel, fluid-air exchange and 18% C3F8. Retinal reattachment was achieved but the macular hole remained open...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/28928267/impact-of-type-i-boston-keratoprosthesis-implantation-on-vision-related-quality-of-life
#16
Marcus Ang, Ryan Man, Eva Fenwick, Ecosse Lamoureux, Mark Wilkins
AIM: To determine the impact of type I Boston keratoprosthesis (KPro) implantation on vision-related quality of life (VRQoL). METHODS: Prospective study in 33 patients (mean age 56±12 years, 67% male) with bilateral corneal blindness, who underwent a KPro implantation at a single tertiary eye hospital (June 2011-July 2015). VRQoL was evaluated using the Impact of Vision Impairment Questionnaire (IVI) at baseline and at 3-6 months postsurgery, after stabilisation of best-corrected visual acuity (BCVA)...
September 19, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28834816/donor-derived-conjunctival-limbal-melanoma-after-a-keratolimbal-allograft
#17
Lorena Sepsakos, Albert Y Cheung, Jeffrey A Nerad, Gautham Mogilishetty, Edward J Holland
PURPOSE: To report a single case of donor-derived conjunctival-limbal melanoma that occurred after a keratolimbal allograft (KLAL). METHODS: Case report and literature review. RESULTS: A 56-year-old white woman with a history of bilateral limbal stem cell deficiency developed a donor-related melanoma after a KLAL. Three months after undergoing an uncomplicated KLAL, the patient presented with hemorrhagic nodules within her conjunctiva and transplanted tissue...
August 22, 2017: Cornea
https://www.readbyqxmd.com/read/28807636/visual-outcomes-and-complications-of-type-i-boston-keratoprosthesis-in-children-a-retrospective-multicenter-study-and-literature-review
#18
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/28777800/vision-retention-in-early-versus-delayed-glaucoma-surgical-intervention-in-patients-with-boston-keratoprosthesis-type-1
#19
Mark Lin, Anand Bhatt, Asghar Haider, Grace Kim, Marjan Farid, Mason Schmutz, Sameh Mosaed
IMPORTANCE: The loss of vision following Boston Keratoprosthesis (BKPro) surgery due to glaucoma occurs at a high frequency as diagnosis and management of glaucoma after this procedure pose challenges. OBJECTIVE: To compare visual outcomes in patients undergoing Boston Keratoprosthesis surgery with and without prior or concurrent glaucoma surgery. DESIGN, SETTING, AND PARTICIPANTS: This is a retrospective, observational cohort study of patients who underwent Boston Type I Keratoprosthesis surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28662941/no-light-perception-outcomes-following-boston-keratoprosthesis-type-1-surgery
#20
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 outcomes among eyes with congenital aniridia. DESIGN: Retrospective, interventional case series. SUBJECTS: All patients undergoing B-KPro type 1 surgery between October 2008 and June 2016 by a single surgeon at CHUM - Hôpital Notre-Dame...
September 2017: American Journal of Ophthalmology
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