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Fuchs cornea

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https://www.readbyqxmd.com/read/29781926/repeatability-and-intersession-reproducibility-of-pentacam-corneal-thickness-maps-in-fuchs-dystrophy-and-endothelial-keratoplasty
#1
David Mingo-Botín, Francisco Arnalich-Montiel, Ana Couceiro de Juan, Sara Ortiz-Toquero
PURPOSE: To assess intrasession repeatability and intersession reproducibility of Pentacam corneal thickness maps in patients with Fuchs endothelial corneal dystrophy (FECD) before and after endothelial transplantation. METHODS: In this observational diagnostic evaluation, 20 healthy subjects along with 81 consecutive patients were examined. Patients were classified into 4 groups: FECD without corneal edema, FECD with corneal edema, Descemet stripping automated endothelial keratoplasty, and Descemet membrane endothelial keratoplasty...
May 16, 2018: Cornea
https://www.readbyqxmd.com/read/29539291/injection-of-cultured-cells-with-a-rock-inhibitor-for-bullous-keratopathy
#2
Shigeru Kinoshita, Noriko Koizumi, Morio Ueno, Naoki Okumura, Kojiro Imai, Hiroshi Tanaka, Yuji Yamamoto, Takahiro Nakamura, Tsutomu Inatomi, John Bush, Munetoyo Toda, Michio Hagiya, Isao Yokota, Satoshi Teramukai, Chie Sotozono, Junji Hamuro
BACKGROUND: Corneal endothelial cell (CEC) disorders, such as Fuchs's endothelial corneal dystrophy, induce abnormal corneal hydration and result in corneal haziness and vision loss known as bullous keratopathy. We investigated whether injection of cultured human CECs supplemented with a rho-associated protein kinase (ROCK) inhibitor into the anterior chamber could increase CEC density. METHODS: We performed an uncontrolled, single-group study involving 11 persons who had received a diagnosis of bullous keratopathy and had no detectable CECs...
March 15, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29528002/descemet-membrane-endothelial-keratoplasty-outcomes-in-the-first-year-of-experience
#3
Dilek D Altınörs, Leyla Asena
OBJECTIVES: We aimed to report the clinical outcomes of Descemet membrane endothelial keratoplasty in our first year of experience. MATERIALS AND METHODS: Patients who underwent Descemet membrane endothelial keratoplasty at the Baskent University Faculty of Medicine, Department of Ophthalmology, between 2015 and 2016 were included in the study. Patient demographics, cause of endothelial dysfunction, best-corrected visual acuity, central corneal thickness, graft survival, follow-up duration, and intraoperative and postoperative complications were recorded...
March 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29516051/endothelial-keratoplasty-for-fuchs-dystrophy
#4
Laura Macovei, Ioana Gobej
We report the case of a 69-year-old female with Fuchs endothelial dystrophy and posterior chamber in-the-bag intraocular lens, whom we treated with DMEK surgical technique. We encountered difficulties both during obtaining the endothelium from the young donor and during the intraocular unrolling and its application on the stroma. We evaluated both preoperative and postoperative the following parameters: visual acuity, slit lamp, and optical coherence tomography appearance of the cornea, corneal thickness, intraocular pressure, endothelial cell density...
October 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29489516/five-keratoplasties-from-one-donor-cornea
#5
Oganes G Oganesyan, Vladimir V Neroev, Arthur A Grdikanyan, Vostan R Getadaryan
PURPOSE: To describe the feasibility of same-day, consecutive use of a single donor cornea in 5 patients with corneal pathology, who required anterior lamellar and endothelial keratoplasties. METHODS: Descemet membrane (DM) with endothelium was completely stripped from a single corneoscleral button and punched out from the endothelial side with a circular, standard punch. Using a custom-made punch for linear cutting of DM, we obtained 4 quarter-grafts (Q-graft)...
May 2018: Cornea
https://www.readbyqxmd.com/read/29410297/trends-in-corneal-transplantation-from-2001-to-2016-in-germany-a-report-of-the-dog-section-cornea-and-its-keratoplasty-registry
#6
Elias Flockerzi, Philip Maier, Daniel Böhringer, Helga Reinshagen, Friedrich Kruse, Claus Cursiefen, Thomas Reinhard, Gerd Geerling, Necip Torun, Berthold Seitz
PURPOSE: The purpose of this retrospective panel study was to provide an overview of absolute numbers and of trends in the types of and indications for corneal transplantation in Germany from 2001 to 2016. METHODS: A questionnaire about absolute numbers, types of transplantation, and indications was sent to 111 ophthalmologic departments in Germany, out of which 94 (85%) provided their data. RESULTS: Since the year 2001, the number of corneal transplantations has increased by 1...
April 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29408827/corneal-optical-changes-associated-with-induced-edema-in-fuchs-endothelial-corneal-dystrophy
#7
Katrin Wacker, Jay W McLaren, Katrina M Kane, Sanjay V Patel
PURPOSE: Patients with Fuchs endothelial corneal dystrophy (FECD) often notice poor vision in the morning that improves as the day progresses. In this study, we determined changes in corneal optical properties associated with induced corneal edema. METHODS: Twenty-three phakic eyes (23 participants) with FECD (grades 1-6, modified Krachmer scale) and 8 normal eyes (8 participants) were examined by Scheimpflug photography. Central corneal thickness, high-order aberrations from anterior and posterior corneal surfaces, and backscatter from the anterior, mid-, and posterior cornea were determined from the Scheimpflug images...
March 2018: Cornea
https://www.readbyqxmd.com/read/29338061/feasibility-of-cell-based-therapy-combined-with-descemetorhexis-for-treating-fuchs-endothelial-corneal-dystrophy-in-rabbit-model
#8
Naoki Okumura, Daiki Matsumoto, Yuya Fukui, Masataka Teramoto, Hirofumi Imai, Tetta Kurosawa, Tomoki Shimada, Friedrich Kruse, Ursula Schlötzer-Schrehardt, Shigeru Kinoshita, Noriko Koizumi
Corneal transparency is maintained by the corneal endothelium through its pump and barrier function. Severe corneal endothelial damage results in dysregulation of water flow and eventually causes corneal haziness and deterioration of visual function. In 2013, we initiated clinical research of cell-based therapy for treating corneal decompensation. In that study, we removed an 8-mm diameter section of damaged corneal endothelium without removing Descemet's membrane (the basement membrane of the corneal endothelium) and then injected cultured human corneal endothelial cells (CECs) into the anterior chamber...
2018: PloS One
https://www.readbyqxmd.com/read/29325021/oligonucleotides-targeting-tcf4-triplet-repeat-expansion-inhibit-rna-foci-and-mis-splicing-in-fuchs-dystrophy
#9
Jiaxin Hu, Ziye Rong, Xin Gong, Zhengyang Zhou, Vivek K Sharma, Chao Xing, Jonathan K Watts, David R Corey, V Vinod Mootha
Fuchs' endothelial corneal dystrophy (FECD) is the most common repeat expansion disorder. FECD impacts 4% of U.S. population and is the leading indication for corneal transplantation. Most cases are caused by an expanded intronic CUG tract in the TCF4 gene that forms nuclear foci, sequesters splicing factors and impairs splicing. We investigated the sense and antisense RNA landscape at the FECD gene and find that the sense-expanded repeat transcript is the predominant species in patient corneas. In patient tissue, sense foci number were negatively correlated with age and showed no correlation with sex...
March 15, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29223239/phacoemulsification-with-intraocular-lens-implantation-after-previous-descemetorhexis-without-endothelial-keratoplasty
#10
Aaron R Kaufman, Ricardo M Nosé, Yifan Lu, Roberto Pineda
A 58-year-old woman with bilateral Fuchs endothelial corneal dystrophy presented with predominantly central guttata in the left eye causing visually significant stromal edema. A 4.0 mm descemetorhexis without endothelial keratoplasty was performed. At the 6-week follow-up, the central cornea had cleared completely and the central endothelial cell density (ECD) was 541 cells/mm2 . The central corneal clearing remained stable for 2 years after the procedure; however, vision declined because of a visually significant cataract in the left eye...
November 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29213190/smartphone-based-imaging-of-the-corneal-endothelium-at-sub-cellular-resolution
#11
Devrim Toslak, Damber Thapa, Muhammet Kazim Erol, Yanjun Chen, Xincheng Yao
This aim of this study was to test the feasibility of smartphone-based specular microscopy of the corneal endothelium at a sub-cellular resolution. Quantitative examination of endothelial cells is essential for evaluating corneal disease such as determining a diagnosis, monitoring progression and assessing treatment. Smartphone-based technology promises a new opportunity to develop affordable devices to foster quantitative examination of endothelial cells in rural and underserved areas. In our study, we incorporated an iPhone 6 and a slit lamp to demonstrate the feasibility of smartphone-based microscopy of the corneal endothelium at a sub-cellular resolution...
2017: Journal of Modern Optics
https://www.readbyqxmd.com/read/29132691/-practical-assessment-of-dsaek-in-the-management-of-endothelial-decompensation-following-penetrating-keratoplasty
#12
E Neiter, C Goetz, F Tortuyaux, A Ehrhardt, N Houmad, J-M Perone
PURPOSE: To report our anatomical and functional results as well as possible complications of the first six Descemet's stripping endothelial keratoplasties (DSAEK) performed in our department for endothelial decompensation after penetrating keratoplasty (PK) METHODS: This was a retrospective and observational monocentric study of six patients with DSAEK after prior PK between January 2015 and July 2016. The data collected were: demographic characteristics (age, sex), ophthalmological comorbidities, initial indication for PK, delay between PK and DSAEK...
December 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29127432/corneal-endothelial-cell-loss-3-years-after-successful-descemet-stripping-automated-endothelial-keratoplasty-in-the-cornea-preservation-time-study-a-randomized-clinical-trial
#13
Jonathan Lass, Beth Ann Benetz, David D Verdier, Loretta B Szczotka-Flynn, Allison R Ayala, Wendi Liang, Anthony J Aldave, Steven P Dunn, Tryone McCall, Shahzad I Mian, Lisa C Navarro, Sanjay V Patel, Sudeep Pramanik, George O Rosenwasser, Kevin W Ross, Mark A Terry, Craig Kollman, Robin L Gal, Roy W Beck
Importance: Demonstrating that endothelial cell loss following Descemet stripping automated endothelial keratoplasty (DSAEK) is independent of donor cornea preservation time (PT) could increase the pool of corneal tissue available for keratoplasty. Objective: To determine whether endothelial cell loss 3 years after successful DSAEK is related to PT. Design, Setting, and Participants: A multicenter, double-masked, randomized clinical trial included 40 clinical sites (70 surgeons) in the United States, with donor corneas provided by 23 US eye banks...
December 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29127431/effect-of-cornea-preservation-time-on-success-of-descemet-stripping-automated-endothelial-keratoplasty-a-randomized-clinical-trial
#14
George O Rosenwasser, Loretta B Szczotka-Flynn, Allison R Ayala, Wendi Liang, Anthony J Aldave, Steven P Dunn, Tyrone McCall, Lisa C Navarro, Sudeep Pramanik, Kevin W Ross, R Doyle Stulting, Mark A Terry, Elmer Y Tu, David D Verdier, Craig Kollman, Robin L Gal, Roy W Beck, Jonathan H Lass
Importance: Demonstrating that success of Descemet stripping automated endothelial keratoplasty is similar across donor cornea preservation times (PTs) could increase the donor pool. Objective: To determine whether the 3-year rate of graft success using corneal donor tissue preserved 8 to 14 days is noninferior to that of donor tissue preserved 7 days or less. Design, Setting, and Participants: A multicenter, double-masked, randomized noninferiority clinical trial was conducted from April 16, 2012, to June 5, 2017, at 40 clinical sites (70 surgeons) in the United States, with donor corneas provided by 23 US eye banks...
December 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29077583/phenotypic-characterization-of-corneal-endothelial-dystrophy-in-german-shorthaired-and-wirehaired-pointers-using-in-vivo-advanced-corneal-imaging-and-histopathology
#15
Olivia R Shull, Christopher M Reilly, Lola B Davis, Christopher J Murphy, Sara M Thomasy
PURPOSE: To evaluate corneal morphology using ultrasonic pachymetry (USP), Fourier-domain optical coherence tomography (FD-OCT), and in vivo confocal microscopy (IVCM) in 2 related canine breeds-German shorthaired pointers (GSHPs) and German wirehaired pointers (GWHPs)-with and without corneal endothelial dystrophy (CED). This condition is characterized by premature endothelial cell degeneration leading to concomitant corneal edema and is similar to Fuchs endothelial corneal dystrophy...
January 2018: Cornea
https://www.readbyqxmd.com/read/28968295/descemet-membrane-endothelial-transfer-ultimate-outcome
#16
Rénuka S Birbal, Jack Parker, Martin Dirisamer, Ana Janićijević, Lamis Baydoun, Isabel Dapena, Gerrit R J Melles
PURPOSE: To evaluate the clinical outcome of 16 eyes undergoing Descemet membrane endothelial transfer (DMET). METHODS: In this retrospective cohort study, a consecutive series of 16 eyes from 16 patients was evaluated after subtotal detachment of the Descemet graft after a Descemet membrane endothelial keratoplasty procedure (n = 8) or intended DMET (n = 8) for either Fuchs endothelial dystrophy (n = 10) or bullous keratopathy (BK; n = 6). RESULTS: All 8 Descemet membrane endothelial keratoplasty procedures were complicated by subtotal detachment of the donor graft...
February 2018: Cornea
https://www.readbyqxmd.com/read/28782549/a-review-of-the-evidence-for-in-vivo-corneal-endothelial-regeneration
#17
REVIEW
Bert Van den Bogerd, Sorcha Ní Dhubhghaill, Carina Koppen, Marie-José Tassignon, Nadia Zakaria
Human corneal endothelium has long been thought to be a nonmitotic cell layer with no endogenous reparative potential. Pathologies that damage endothelial function result in corneal decompensation and, if untreated, blindness. The mainstay of treatment involves partial or complete corneal replacement, amounting to 40% of all corneal transplants performed worldwide. We summarize the case reports describing complications postoperatively in the form of (sub)total graft detachment and those resulting in postoperative bare stroma...
March 2018: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28754918/activation-of-tgf-%C3%AE-signaling-induces-cell-death-via-the-unfolded-protein-response-in-fuchs-endothelial-corneal-dystrophy
#18
Naoki Okumura, Keisuke Hashimoto, Miu Kitahara, Hirokazu Okuda, Emi Ueda, Kyoko Watanabe, Makiko Nakahara, Takahiko Sato, Shigeru Kinoshita, Theofilos Tourtas, Ursula Schlötzer-Schrehardt, Friedrich Kruse, Noriko Koizumi
Fuchs endothelial corneal dystrophy (FECD) is a slowly progressive bilateral disease of corneal endothelium in which accumulation of extracellular matrix (ECM) and loss of corneal endothelial cells (CECs) are phenotypic features. The corneal endothelium maintains corneal transparency by regulating water hydration; consequently, corneal endothelial dysfunction causes serious vision loss. The only therapy for corneal haziness due to corneal endothelial diseases, including FECD, is corneal transplantation using donor corneas, and no pharmaceutical treatment is available...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28751984/corneal-backscatters-as-an-objective-index-for-assessing-fuchs-endothelial-corneal-dystrophy-a-pilot-study
#19
Hsueh-Yen Chu, Ching-Hsi Hsiao, Phil Yeong-Fong Chen, David Hui-Kang Ma, Chee-Jen Chang, Hsin-Yuan Tan
PURPOSE: To provide an objective, quantitative approach for monitoring Fuchs' endothelial corneal dystrophy (FECD), with Scheimpflug imaging. DESIGN: This is a retrospective case-control pilot study. METHODS: The study group consisted of 53 eyes in 27 patients diagnosed with FECD, with normal subjects paired as control. Main outcome measures were corneal thickness, morphological patterns on densitograms, and indices of corneal density including the average area density (mean AD) and the average ratio of Descemet's membrane density versus area density (DM/AD) in Pentacam Scheimpflug images...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28742617/simple-single-pass-technique-for-ultrathin-descemet-stripping-automated-endothelial-keratoplasty-a-pilot-study
#20
Maria E S Dimitry, Adam D Lewis, Fani Zacharaki, Manju Chandran, Deana Robson, Geeta Menon, Thomas R G Poole
PURPOSE: To assess intraoperative and postoperative graft thickness (GT) after donor deturgescence for ultrathin Descemet stripping automated endothelial keratoplasty and to evaluate visual outcomes, endothelial cell density, and patient satisfaction at 1 year. METHODS: Prospective interventional case series of patients with Fuchs endothelial dystrophy, Fuchs endothelial dystrophy and cataract, and pseudophakic bullous keratopathy (n = 12 grafts). The donor cornea was allowed to thin out by simple evaporation on an artificial anterior chamber, to the required precut thickness, before a single microkeratome pass...
October 2017: Cornea
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