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Lamellar keratoplasty

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https://www.readbyqxmd.com/read/28076561/visual-outcomes-after-deep-anterior-lamellar-keratoplasty-using-donor-corneas-without-removal-of-descemet-membrane-and-endothelium
#1
Tatiana Moura Bastos Prazeres, Rodrigo Muller, Tatiana Rayes, Flavio Eduardo Hirai, Luciene Barbosa de Sousa
Purpose: The optical quality of the interface after deep anterior lamellar keratoplasty (DALK) using the big-bubble technique has been shown to be excellent, leading to results comparable to penetrating keratoplasty. However, there is little in the literature with respect to the controversy surrounding the preparation of the donor cornea. The purpose of this study was to evaluate visual acuity (VA) in patients with keratoconus who underwent DALK without removal of the donor graft endothelium...
November 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28069281/-effect-of-donor-graft-characteristics-on-clinical-outcomes-in-descemet-stripping-automated-endothelial-keratoplasty-dsaek
#2
G Ho Wang Yin, M Sampo, S Soare, L Hoffart
INTRODUCTION: The purpose of our study was to evaluate the progression of lamellar corneal grafts after endothelial keratoplasty by Descemet stripping automated endothelial keratoplasty (DSAEK) and the effect of their characteristics on the clinical and functional results. MATERIALS AND METHODS: This was a prospective study in which 74 patients who had undergone endothelial keratoplasty by DSAEK were included. The corneal grafts were obtained from a French tissue bank and were delivered in a preservation medium containing a deturgescent agent (Corneajet(®) or Stemalpha 3(®))...
January 6, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28060057/trends-in-corneal-transplantation-in-keratoconus
#3
Daniel Sarezky, Stephen E Orlin, Wei Pan, Brian L VanderBeek
PURPOSE: To determine recent trends in and sociodemographic/comorbid conditions associated with penetrating keratoplasty (PK) and lamellar keratoplasty (LK) for keratoconus (KCN). METHODS: Patients with KCN and subsequent PK and LK procedures were identified using International Classification of Diseases, 9th revision (ICD-9) and Current Procedural Terminology (CPT) billing codes. The change in surgical rates was calculated over a decade, and multivariate analysis demonstrated factors associated with undergoing surgery...
February 2017: Cornea
https://www.readbyqxmd.com/read/28017678/deep-anterior-lamellar-keratoplasty-after-descemet-stripping-automated-endothelial-keratoplasty
#4
Shay Gutfreund, Pia Leon, Shmuel Graffi, Massimo Busin
PURPOSE: To report the indications and long-term outcomes of deep anterior lamellar keratoplasty (DALK) performed after Descemet stripping automated endothelial keratoplasty (DSAEK) in cases of visually significant stromal opacities. DESIGN: Retrospective, interventional, consecutive case series. METHOD: Setting: Private hospital. Study populationThirteen eyes that underwent DALK after DSAEK at our Institution. Indications for DALK after DSAEK included both stromal opacities persisting after DSAEK and stromal opacities occurring secondarily in post-DSAEK corneas...
December 22, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28010938/deep-lamellar-endothelial-keratoplasty-clinical-outcome-the-13-to-18-year-follow-up
#5
Hilde C M Hooijmaijers, Marina Rodriguez-Calvo-de-Mora, Korine van Dijk, Lisanne Ham, Carla Nieuwendaal, Gerrit R J Melles
No abstract text is available yet for this article.
December 20, 2016: Ophthalmology
https://www.readbyqxmd.com/read/28004157/-deep-anterior-lamellar-keratoplasty-experiences-and-results-of-the-first-100-consecutive-dalk-from-the-university-eye-hospital-of-cologne
#6
F Schaub, L M Heindl, P Enders, S Roters, B O Bachmann, C Cursiefen
BACKGROUND: Deep anterior lamellar keratoplasty (DALK) is a treatment option for patients with diseases of the corneal stroma without endothelial involvement and has been used at the Department of Ophthalmology of the University of Cologne since July 2011. Experiences and results of the first 100 consecutive cases from Cologne with a minimum follow-up of 1 year are summarized. MATERIALS AND METHODS: We included the first 100 consecutive DALKs. Indications for anterior lamellar keratoplasty, the feasibility of the surgery, the postoperative course, in addition to the complications and clinical outcome 3 months after complete suture removal, were examined...
December 21, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28003975/preoperative-evaluation-and-outcome-of-corneal-transplantation-for-limbal-dermoids-a-ten-year-follow-up-study
#7
Meng Xin, Yue-Rong Gong, Shan-Hao Jiang, Chun-Hua Dai, Su-Xia Li, Wei-Yun Shi
AIM: To summarize preoperative evaluation and outcome of corneal transplantation for limbal dermoids for ten years. METHODS: Eighty-five patients diagnosed with limbal dermoids and treated with corneal transplantation were analyzed retrospectively. All patients were further divided into two groups according to absence or presence of neovascularization surrounding the dermoids in the corneal stroma. Eighty-two eyes were treated with tumor excision combined with partial lamellar sclerokeratoplasty, and the other three eyes were performed by penetrating keratoplasty...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28002112/wet-peeling-technique-of-deep-anterior-lamellar-keratoplasty-with-hypotonic-water-and-blunt-dissection-for-healed-hydrops
#8
Zelin Zhao, Jinyang Li, Qinxiang Zheng, Wei Lin, Vishal Jhanji, Wei Chen
PURPOSE: To describe the surgical technique and outcomes of "wet-peeling" deep anterior lamellar keratoplasty (DALK) using sterile water and blunt dissection in cases with corneal scarring after healed corneal hydrops. METHODS: Manual DALK using a "wet-peeling" technique was performed in 20 eyes of 20 consecutive patients with healed corneal hydrops between June 2011 and October 2013. RESULTS: Intraoperative microperforations were encountered in 2 (10%) cases...
December 20, 2016: Cornea
https://www.readbyqxmd.com/read/28002108/corneal-biomechanical-properties-after-penetrating-keratoplasty-or-deep-anterior-lamellar-keratoplasty-using-the-ocular-response-analyzer-a-meta-analysis
#9
Min-Shan Jiang, Jing-Yuan Zhu, Xue Li, Nan-Nan Zhang, Xue-Dian Zhang
PURPOSE: To evaluate the corneal biomechanical properties of patients who have undergone penetrating keratoplasty (PK) or deep anterior lamellar keratoplasty (DALK) using the ocular response analyzer. METHODS: Stata 13.0 SE was used for this meta-analysis. Studies in the literature that focused on corneal hysteresis (CH) or corneal resistance factor (CRF) after PK or DALK were retrieved by searching PubMed, Embase, Ovid, and Cochrane databases. We present the results as weighted mean difference (WMD) with a corresponding 95% confidence interval (CI)...
December 20, 2016: Cornea
https://www.readbyqxmd.com/read/27982215/toxic-anterior-segment-syndrome-following-deep-anterior-lamellar-keratoplasty
#10
Neslihan Sevimli, Remzi Karadag, Ozgur Cakici, Huseyin Bayramlar, Seydi Okumus, Unsal Sari
We present the case of a 31-year-old patient with toxic anterior segment syndrome (TASS) that developed after undergoing deep anterior lamellar keratoplasty (DALK). She had keratoconus, and despite wearing hard contact lenses for many years in the left eye, her vision had deteriorated; therefore, DALK was performed on this eye. The preoperative visual acuity (VA) was finger counting at 3 m. Routine DALK was performed using the "big-bubble" technique. The corneal entry incision was hydrated at the end of the surgery, which was terminated by air injection into the anterior chamber...
September 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/27980368/visual-outcomes-following-deep-anterior-lamellar-keratoplasty-in-granular-corneal-dystrophy-types-1-and-2
#11
Lia M Uit de Bosch, Susan Ormonde, Stuti L Misra
No abstract text is available yet for this article.
December 2016: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/27956322/fuch-s-dystrophy-associated-with-radial-keratotomy-lamellar-or-perforating-keratoplasty
#12
P Rodriguez-Ausin, D Antolin-Garcia, L Santamaria Garcia, A-B Blazquez-Fernandez
CASE REPORT: A 70 year-old male patient with a history of radial keratotomy suffering from Fuch's dystrophy and a cataract. The patient received a two-step surgery: lens phacoemulsification and intraocular lens implant, followed by descemet stripping automated endothelial keratoplasty in both eyes, four months later. There were no complications apart from a recurrent cystoid macular oedema in both eyes. The best corrected visual acuity was 20/40 both eyes, and the patient was satisfied...
December 7, 2016: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/27938949/dual-purpose-corneal-tissue-for-anterior-lamellar-keratoplasty-and-descemet-s-membrane-endothelial-keratoplasty
#13
C Larena Menant-Tay, Ronan Conlon, Salina Teja, Season Yeung, Joshua Teichman, Setareh Ziai, Kashif Baig
OBJECTIVE: To assess the intraoperative issues and surgical outcomes of preparing a single-donor corneal tissue for same-day use in both deep anterior lamellar keratoplasty (DALK) and Descemet's membrane endothelial keratoplasty (DMEK). DESIGN: Consecutive retrospective case series. PARTICIPANTS: Ten eyes of 10 patients who underwent DALK (5 patients) or DMEK (5 patients) surgery using dual-purpose corneal tissue. METHODS: Five dual-purpose corneoscleral rims were used to prepare tissue for 5 DMEK and 5 DALK procedures...
December 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27930708/three-dimensional-construction-of-a-rabbit-anterior-corneal-replacement-for-lamellar-keratoplasty
#14
Kunpeng Pang, Liqun Du, Kai Zhang, Chenyang Dai, Chengqun Ju, Jing Zhu, Xinyi Wu
The aim of this study was to construct a rabbit anterior corneal replacement for transplantation using acellular porcine corneal matrix (APCM) and rabbit epithelial or stromal cells. APCM was prepared from fresh porcine cornea treated with 0.5% (wt./vol.) sodium dodecyl sulfate (SDS) solution. The expanded stromal cells were first injected into APCM parallel to its surface and were cultured in a shaking culture system for 7 days to obtain the stromal construct. Next, corneal epithelial cells were cultured on the stromal construct surface for another 7 days to obtain rabbit anterior corneal lamella...
2016: PloS One
https://www.readbyqxmd.com/read/27907157/human-bone-derived-collagen-for-the-development-of-an-artificial-corneal-endothelial-graft-in-vivo-results-in-a-rabbit-model
#15
Natalia Vázquez, Manuel Chacón, Carlos A Rodríguez-Barrientos, Jesús Merayo-Lloves, Miguel Naveiras, Begoña Baamonde, Jose F Alfonso, Iriana Zambrano-Andazol, Ana C Riestra, Álvaro Meana
Corneal keratoplasty (penetrating or lamellar) using cadaveric human tissue, is nowadays the main treatment for corneal endotelial dysfunctions. However, there is a worldwide shortage of donor corneas available for transplantation and about 53% of the world's population have no access to corneal transplantation. Generating a complete cornea by tissue engineering is still a tough goal, but an endothelial lamellar graft might be an easier task. In this study, we developed a tissue engineered corneal endothelium by culturing human corneal endothelial cells on a human purified type I collagen membrane...
2016: PloS One
https://www.readbyqxmd.com/read/27861304/trends-in-corneal-transplantation-in-keratoconus
#16
Daniel Sarezky, Stephen E Orlin, Wei Pan, Brian L VanderBeek
PURPOSE: To determine recent trends in and sociodemographic/comorbid conditions associated with penetrating keratoplasty (PK) and lamellar keratoplasty (LK) for keratoconus (KCN). METHODS: Patients with KCN and subsequent PK and LK procedures were identified using International Classification of Diseases, 9th revision (ICD-9) and Current Procedural Terminology (CPT) billing codes. The change in surgical rates was calculated over a decade, and multivariate analysis demonstrated factors associated with undergoing surgery...
November 16, 2016: Cornea
https://www.readbyqxmd.com/read/27860476/-historic-survey-of-posterior-lamellar-keratoplasty-techniques-an-overview
#17
P Studený, D Křížová, P Kuchynka
Some of the modifications of posterior lamellar keratoplasty is at the present considered by most of the corneal surgeons as method of choice in case of patients corneal endothelium damage. However, this surgical technique undergoes in the last 20 years relatively rapid development. Even in the current time, there exist side by side and are used different types and modifications of this sort of transplantation. Because of this reason, differences among individual methods are sometimes not accurately understood and the terminology may be used not exactly as well...
2016: Ceská a Slovenská Oftalmologie
https://www.readbyqxmd.com/read/27853010/femtosecond-laser-assisted-deep-anterior-lamellar-keratoplasty-with-big-bubble-technique-for-keratoconus
#18
Yan Lu, Xiangfei Chen, Liping Yang, Chunyan Xue, Zhenping Huang
PURPOSE: The purpose of this study was to evaluate the clinical results after deep anterior lamellar keratoplasty (DALK) assisted by the femtosecond laser with big-bubble technique for keratoconus. METHODS: A case series of 22 eyes in 19 patients with keratoconus was enrolled in the study. The 500-kHz VisuMax femtosecond laser (Carl Zeiss Meditec AG, Jena, Germany) was used to create a vertical side cut on donor and recipient corneas. Intraoperative and postoperative complications, uncorrected visual acuity, best-corrected visual acuity, corneal curvature, and central corneal thickness were evaluated in all patients...
September 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27843237/demonstration-of-cornea-dua-s-layer-at-a-deep-anterior-lamellar-keratoplasty-surgery
#19
Yusuf Koçluk, Ayşe Burcu, Emine Alyamaç Sukgen
The authors aimed to present a deep anterior lamellar keratoplasty (DALK) surgery case with mixed type bubble demonstrating Dua's layer (DL). This was a reported case of DALK surgery. The authors encountered cornea DL structure at DALK surgery while cleaning the remaining stromal pieces. We also observed perforation in the central part of DL. However, DALK surgery could be completed. It is possible to encounter DL in a DALK surgery performed with mixed type big-bubble.
September 2016: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/27821104/publication-trends-in-corneal-transplantation-a-bibliometric-analysis
#20
Evre Pekel, Gökhan Pekel
BACKGROUND: Our aim was to demonstrate the publication trends of corneal transplantation in the last decade. METHODS: All of the keratoplasty research articles, letters, case reports, reviews and meeting abstracts published between January 2006 and December 2015 indexed on the Thomson Reuters Web of Knowledge were evaluated. A bibliometric filter was used to capture keratoplasty related publications by using the key words 'keratoplasty', 'corneal transplantation' or 'keratoprosthesis' in the 'title' selection mode...
November 8, 2016: BMC Ophthalmology
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