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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
#1
E Flockerzi, P Maier, D Böhringer, H Reinshagen, F Kruse, C Cursiefen, T Reinhard, G Geerling, N Torun, B Seitz
PURPOSE: The purpose of this retrospective panel study was to provide an overview of absolute numbers, 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 ophthalmological 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...
February 1, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29408827/corneal-optical-changes-associated-with-induced-edema-in-fuchs-endothelial-corneal-dystrophy
#2
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/29392310/preoperative-aqueous-cytokine-levels-are-associated-with-endothelial-cell-loss-after-descemet-s-stripping-automated-endothelial-keratoplasty
#3
Hiroyuki Yazu, Takefumi Yamaguchi, Naohiko Aketa, Kazunari Higa, Terumasa Suzuki, Yukari Yagi-Yaguchi, Yoshiyuki Satake, Takayuki Abe, Kazuo Tsubota, Jun Shimazaki
Purpose: To evaluate the association between endothelial cell density (ECD) after Descemet's stripping automated endothelial keratoplasty (DSAEK) and preoperative cytokine levels in the aqueous humor (AqH). Methods: This prospective consecutive case series included 97 consecutive patients who underwent DSAEK (64 eyes) or cataract surgery (33 eyes). AqH samples were collected at the beginning of each surgery. The levels of cytokines (IL-1α, IL-1β, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, IL-17A, IFN-α, IFN-γ, monocyte chemotactic protein [MCP]-1, E-selectin, P-selectin, and soluble intercellular adhesion molecule [sICAM]-1) in the AqH were measured by multiplex beads immunoassay...
February 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29384811/accuracy-of-corneal-thickness-by-swept-source-optical-coherence-tomography-and-scheimpflug-camera-in-virgin-and-treated-fuchs-endothelial-dystrophy
#4
Francisco Arnalich-Montiel, Sara Ortiz-Toquero, Clara Auladell, Ana Couceiro
PURPOSE: To assess intraobserver repeatability, intersession reproducibility, and agreement of swept-source Fourier-domain optical coherence tomography (SS-OCT) and the Scheimpflug camera in measuring corneal thickness in virgin and grafted eyes with Fuchs endothelial corneal dystrophy (FECD). METHODS: Thirty-six control eyes, 35 FECD eyes, 30 FECD with corneal edema eyes, 25 Descemet stripping automated endothelial keratoplasty (DSAEK) eyes, and 29 Descemet membrane endothelial keratoplasty (DMEK) eyes were included...
January 30, 2018: Cornea
https://www.readbyqxmd.com/read/29384808/regenerative-therapy-for-fuchs-endothelial-corneal-dystrophy
#5
Yu Qiang Soh, Jodhbir S Mehta
PURPOSE: Fuchs endothelial corneal dystrophy (FECD) is an acquired corneal endotheliopathy and is one of the most common indications for corneal transplantation surgery worldwide. Endothelial keratoplasty (EK) is the most popular form of corneal transplantation for FECD. In standard EK surgery, the patient's corneal endothelium and basement membrane [ie, Descemet membrane (DM)] are first removed, followed by transplantation of donor tissue that comprises allogenic corneal endothelial cells, DM, and corneal stroma of variable thickness...
January 30, 2018: Cornea
https://www.readbyqxmd.com/read/29360003/evolving-therapies-for-fuchs-endothelial-dystrophy
#6
Yu Qiang Soh, Gary Sl Peh, Jodhbir S Mehta
Fuchs' endothelial dystrophy (FED) is characterized by corneal endothelial dysfunction and guttate excrescences on the posterior corneal surface, and is the leading indication for corneal transplantation in developed countries. In severe cases, keratoplasty is considered as the gold standard of treatment. However, there have been significant developments in our understanding of FED over the past decade. Attempts have been made to treat this disease with regenerative therapy techniques such as primary descemetorhexis without an endothelial graft or with a tissue-engineering approach...
January 2018: Regenerative Medicine
https://www.readbyqxmd.com/read/29350686/fuchs-endothelial-corneal-dystrophy-and-macular-drusen-evidence-for-coincidence
#7
M Matthaei, E Elsner, A Caramoy, W Adler, S Siebelmann, F Schaub, C Skevas, S Liakopoulos, B Bachmann, C Cursiefen, L M Heindl
No abstract text is available yet for this article.
January 19, 2018: Eye
https://www.readbyqxmd.com/read/29343529/quarter-descemet-membrane-endothelial-keratoplasty-quarter-dmek-for-fuchs-endothelial-corneal-dystrophy-6-months-clinical-outcome
#8
Vasiliki Zygoura, Lamis Baydoun, Lisanne Ham, Vincent J A Bourgonje, Korine van Dijk, Jessica T Lie, Isabel Dapena, Silke Oellerich, Gerrit R J Melles
BACKGROUND/AIM: To assess the clinical outcome of the first series of Quarter-Descemet membrane endothelial keratoplasty (Quarter-DMEK), a potential hybrid technique between 'descemetorhexis only' and conventional, circular DMEK. METHODS: Prospective interventional case series at a tertiary referral centre. Twelve eyes of 12 patients with central Fuchs endothelial corneal dystrophy underwent Quarter-DMEK, that is, transplantation of one quadrant of a full-diameter DMEK graft, and were evaluated for best-corrected visual acuity (BCVA), endothelial cell density (ECD) and complications up to 6 months postoperatively...
January 17, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29338061/feasibility-of-cell-based-therapy-combined-with-descemetorhexis-for-treating-fuchs-endothelial-corneal-dystrophy-in-rabbit-model
#9
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/29327391/molecular-phenotype-of-slc4a11-missense-mutants-setting-the-stage-for-personalized-medicine-in-corneal-dystrophies
#10
Kumari Alka, Joseph R Casey
SLC4A11 mutations cause cases of congenital hereditary endothelial dystrophy (CHED), Harboyan syndrome (HS), and Fuchs endothelial corneal dystrophy (FECD). Defective water reabsorption from corneal stroma by corneal endothelial cells (CECs) leads to these corneal dystrophies. SLC4A11, in the CEC basolateral membrane facilitates transmembrane movement of H2 O, NH3 and H+ -equivalents. Some SLC4A11 disease mutants have impaired folding, leading to a failure to move to the cell surface, which in some cases can be corrected by the drug, Glafenine...
January 11, 2018: Human Mutation
https://www.readbyqxmd.com/read/29325021/oligonucleotides-targeting-tcf4-triplet-repeat-expansion-inhibit-rna-foci-and-mis-splicing-in-fuchs-dystrophy
#11
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 United States 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...
January 8, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29242495/the-evolution-of-corneal-transplantation
#12
Tobias Röck, Johanna Landenberger, Matthias Bramkamp, Karl Ulrich Bartz-Schmidt, Daniel Röck
BACKGROUND The aim of this study was to investigate the evolution of surgical methods in and leading indications for corneal transplantation from 2005 to 2016. MATERIAL AND METHODS Data from the corneal graft waiting list and from all keratoplasties carried out between 2005 and 2016 at the University Eye Hospital Tübingen were retrospectively evaluated. RESULTS A total of 1259 keratoplasties were performed between 2005 and 2016 at the University Eye Hospital Tübingen. The most common surgical indications for corneal transplantation were Fuchs endothelial corneal dystrophy (45...
December 15, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29234234/mini-descemet-membrane-stripping-m-dmes-in-patients-with-fuchs-endothelial-dystrophy-a-new-method
#13
George D Kymionis, Dimitrios A Liakopoulos, Michael A Grentzelos, Irini Naoumidi, Georgios A Kontadakis, Konstantinos I Tsoulnaras, Myrsini K Petrelli
We present two cases with focal corneal edema due to Fuchs' endothelial dystrophy that were successfully treated with mini Descemet membrane stripping (m-DMES) (diameter of 3-4 mm; at the area of preexisting focal corneal edema) without endothelial replacement during cataract surgery. Specular microscopy demonstrated Fuchs' endothelial dystrophy and histopathologic evaluation confirmed the diagnosis. Anterior segment optical coherence tomography and confocal microscopy were used for the evaluation of the corneal tissue recovery course after the surgical procedure...
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/29223239/phacoemulsification-with-intraocular-lens-implantation-after-previous-descemetorhexis-without-endothelial-keratoplasty
#14
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
#15
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/29209447/nrf2-a-potential-therapeutic-target-against-oxidative-stress-in-corneal-diseases
#16
REVIEW
Xiu-Fen Liu, Dan-Dan Zhou, Tian Xie, Tayyab Hamid Malik, Cheng-Bo Lu, Hai-Jun Li, Fan Wang, Chang Shu, Cong Liu, Cheng-Wei Lu, Ji-Long Hao
Corneal diseases are one of the major causes of blindness worldwide. Conservative medical agents, which may prevent sight-threatening corneal disease progression, are urgently desired. Numerous evidences have revealed the involvement of oxidative stress in various corneal diseases, such as corneal wound healing and Fuchs endothelial corneal dystrophy (FECD). Nuclear factor (erythroid-derived 2)-like 2 (Nrf2)/Kelch-like erythroid-cell-derived protein with CNC homology- (ECH-) associated protein 1 (Keap1)/antioxidant response element (ARE) signaling is well known as one of the main antioxidative defense systems...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29196769/ctg18-1-expansion-in-tcf4-among-african-americans-with-fuchs-corneal-dystrophy
#17
Allen O Eghrari, Sina Vahedi, Natalie A Afshari, S Amer Riazuddin, John D Gottsch
Purpose: Studies of Fuchs' dystrophy have largely focused on individuals of European origin. Characterization of disease among African Americans is required to ensure prognostic factors and therapeutic approaches are applicable across diverse patient populations. Methods: We assessed all self-reported black and white patients aged older than 40 years at a tertiary care institution with a diagnosis of cataract over a 3-year period for concurrent diagnosis of Fuchs' dystrophy...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29136408/fuchs-endothelial-and-myotonic-dystrophies-corneal-dystrophy-in-myotonic-patients
#18
Maddalena De Bernardo, Nicola Rosa
No abstract text is available yet for this article.
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29132691/-practical-assessment-of-dsaek-in-the-management-of-endothelial-decompensation-following-penetrating-keratoplasty
#19
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...
November 11, 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
#20
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
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