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https://www.readbyqxmd.com/read/28690536/catastrophic-thermal-corneoscleral-injury-treated-with-transplantation-of-donor-scleral-graft
#1
Satoru Kase, Takeshi Ohguchi, Susumu Ishida
BACKGROUND: The aim of this study is to report a patient with senile cataract developing severe thermal corneoscleral injury during phacoemulsification, which was treated with a donor scleral graft. CASE: Severe thermal corneoscleral injury occurred during phacoemulsification in the right eye of a 74-year-old male. His medical history was prostate hypertrophy. Visual acuity was hand motion and the intraocular pressure was 3 mm Hg OD. There was heavy corneal stromal opacity with intraocular fluid leakage...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28574133/technical-feasibility-of-isolated-bowman-layer-graft-preparation-by-femtosecond-laser-a-pilot-study
#2
Jack S Parker, Forest Huls, Elizabeth Cooper, Paul Graves, Esther A Groeneveld-van Beek, Jessica Lie, Gerrit R J Melles
PURPOSE: To evaluate the technical feasibility of isolated Bowman layer (BL) graft preparation by femtosecond laser (FSL) and to compare the ultrastructural morphology to manually dissected grafts. METHODS: Five whole globes were placed in custom-made eye holders and debrided of epithelium. After programming a dissection depth of 20 μm, the FSL was docked into position and 5 isolated BL grafts were created. From 5 additional globes, corneoscleral buttons were procured, mounted in artificial anterior chambers, and stripped of BL via the previously described manual technique...
May 26, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28567165/letter-to-the-editor-corneoscleral-melt-50-years-after-excision-of-pterygium
#3
Aki Kondo, Tatsuya Mimura, Mari Goto, Yuko Kamei, Saito Yusuke, Hiroko Okuma, Masao Matsubara
PURPOSE: To report a case of corneoscleral melt that occurred 50 years after resection of pterygium with postoperative administration of mitomycin C (MMC). RESULTS: A 93-year-old woman developed acute corneal perforation and scleral melt in her left eye at 50 years after pterygium surgery with postoperative topical MMC. She underwent limbal transplantation. The anterior chamber reformed postoperatively and her intraocular pressure was normal. At 12 months after transplantation, best-corrected visual acuity was 20/500 and the graft-host junction was well apposed...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28559840/limbal-stem-cell-sparing-corneoscleroplasty-with-peripheral-intralamellar-tuck-a-new-surgical-technique-for-keratoglobus
#4
Elias Jarade, Rafic Antonios, Sylvain El-Khoury
PURPOSE: To describe the technique of limbal stem cell-sparing corneoscleroplasty for the management of advanced keratoglobus. METHODS: A patient with bilateral advanced keratoglobus, with best-corrected visual acuity of 20/400 in the right eye and 20/200 in the left eye, underwent limbal stem cell-sparing corneoscleroplasty of the right eye. Initially, a 360-degree limbal incision with 200-μm depth was created, followed by a sublimbal tunnel dissection into the sclera, in order to conserve stem cells...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28544131/sclerocorneal-graft-and-sequential-removal-of-melted-cornea-after-severe-corneal-burn-with-perforation
#5
Anja Viestenz, Berthold Seitz, Hans-Gert Struck, Arne Viestenz
INTRODUCTION: Corneal burn grade IV usually leads to blindness. Several different surgical techniques remain challenging owing to the extensive tissue damage. Here, we introduce a novel technique with a 15 mm corneoscleral and limbal homologous graft combined with sequential autologous corneal removal ab interno, with a vitrectomy probe to save the anterior chamber angle. In vivo anatomy with optical coherence tomography is the surgical key. METHOD: A large 15 mm sclerocorneal graft is sutured on top of the remainder of the destroyed cornea and sclera after removal of the epithelium and conjunctiva, with anterior synechiolysis if necessary, peripheral iridectomy and conjunctivoplasty...
May 22, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28386160/a%C3%A2-serious-adverse-surgical-event-management-of-suspected-hsv-1-keratitis-in-a%C3%A2-donor-cornea
#6
Rebecca Kaye, Bernhard Steger, Jern Y Chen, Vito Romano
PURPOSE: To describe the management of a serious adverse event in a patient undergoing penetrating keratoplasty (PK). CASE REPORT: A 68-year-old man underwent PK for an aphakic bullous keratopathy following previous complicated cataract surgery. He had no past history of herpetic disease. Storage of the corneoscleral disc in the transport bottle precluded microscopic examination. After placement of the trephined donor cornea on the open eye of the recipient, a large dendritiform geographic ulcer was noted on the donor cornea...
2017: Spektrum der Augenheilkunde: Zeitschrift der Österreichischen Ophthalmologischen Gesellschaft, ÖOG
https://www.readbyqxmd.com/read/28379858/keratolimbal-allograft
#7
REVIEW
Albert Y Cheung, Edward J Holland
PURPOSE OF REVIEW: Keratolimbal allograft (KLAL) transplants limbal tissue attached to a corneoscleral carrier from a cadaveric donor to deliver a large number of stem cells to the recipient. The present article will provide a review of KLAL focusing on the recent literature. RECENT FINDINGS: Recent findings pertain to tissue selection, immunosuppression and adverse event profiles, and postoperative complications (particularly related to immunologic rejection). SUMMARY: KLAL permits the treatment of limbal stem cell deficiency eyes when there is no available living-related or autograft tissue with minimal risk of irreversible toxicity from modern systemic immunosuppression...
July 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28326192/differences-in-surgical-management-of-corneal-perforations-measured-over-six-years
#8
Katarzyna Krysik, Dariusz Dobrowolski, Anita Lyssek-Boron, Judyta Jankowska-Szmul, Edward A Wylegala
Purpose. To report the surgical approach, anatomical and functional results, and complications in the group of patients with corneal perforation. Materials and Methods. 247 eyes with corneal perforation were operated on between January 2010 and July 2016. The three surgical procedures, dependent on size and location of perforation, were performed: full-sized penetrating keratoplasty, corneoscleral patch graft, and anterior lamellar keratoplasty. The eyes underwent the minimum 6-month follow-up visit. Results...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28255771/amniotic-membrane-in-ophthalmology-properties-preparation-storage-and-indications-for-grafting-a-review
#9
REVIEW
Katerina Jirsova, Gary L A Jones
The use of amniotic membrane in ophthalmic surgery and other surgical procedures in the fields of dermatology, plastic surgery, genitourinary medicine and otolaryngology is on the increase. Furthermore, amniotic membrane and its epithelial and mesenchymal cells have broad use in regenerative medicine and hold great promise in anticancer treatment. Amniotic membrane is a rich source of biologically active factors and as such, promotes healing and acts as an effective material for wound dressing. Amniotic membrane supports epithelialization and exhibits anti-fibrotic, anti-inflammatory, anti-angiogenic and anti-microbial features...
June 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27974291/organ-cultured-prestripped-donor-tissue-for-dmek-surgery-clinical-outcomes
#10
Johannes Menzel-Severing, Friedrich E Kruse, Theofilos Tourtas
AIM: To determine whether clinical performance is negatively affected by prestripping Descemet membrane endothelial keratoplasty (DMEK) grafts from organ-cultured corneas. METHODS: We reviewed clinical records of all patients who underwent DMEK surgery for Fuchs endothelial dystrophy between 28 October 2014 and 11 August 2015. Grafts had been prepared from organ-cultured corneoscleral buttons 24 hours prior to surgery or during surgery. We included only patients for which at least one follow-up examination was available at a minimum of 2 months postoperatively...
August 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27938949/dual-purpose-corneal-tissue-for-anterior-lamellar-keratoplasty-and-descemet-s-membrane-endothelial-keratoplasty
#11
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/27858161/two-photon-optical-microscopy-imaging-of-endothelial-keratoplasty-grafts
#12
Marco Lombardo, Mohit Parekh, Sebastiano Serrao, Alessandro Ruzza, Stefano Ferrari, Giuseppe Lombardo
PURPOSE: To investigate the microstructure of endothelial keratoplasty grafts using two-photon optical microscopy. METHODS: Six endothelial keratoplasty grafts obtained from human donor corneoscleral tissues and prepared by submerged hydrodissection technique were imaged by two-photon optical microscopy. In each graft, two liquid bubbles were created in order to investigate the presence of a conserved cleavage plane regardless of the volume of posterior stroma that remained attached to Descemet's membrane (DM); the first bubble (bubble A) was generated under DM and the second bubble (bubble B) injection was done in order to obtain a layer of deep stroma that kept the two bubbles separated...
March 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27817919/incidence-and-outcomes-of-positive-donor-corneoscleral-rim-fungal-cultures-after-keratoplasty
#13
Jesse M Vislisel, Kenneth M Goins, Michael D Wagoner, Gregory A Schmidt, Benjamin T Aldrich, Jessica M Skeie, Cynthia R Reed, M Bridget Zimmerman, Mark A Greiner
PURPOSE: To determine the incidence of positive corneoscleral donor rim fungal cultures after keratoplasty and to report clinical outcomes of grafts with culture-positive donor rims. DESIGN: Retrospective cohort study. PARTICIPANTS: Consecutive donor corneas and keratoplasty recipients at a single tertiary referral center over 20 years. METHODS: Patient charts were reviewed to determine the incidence of positive donor rim fungal cultures and clinical outcomes of all grafts using contaminated tissue...
January 2017: Ophthalmology
https://www.readbyqxmd.com/read/27617872/sex-chromosome-analysis-of-postmortem-corneal-endothelium-after-sex-mismatch-descemet-membrane-endothelial-keratoplasty
#14
Itay Lavy, Robert M Verdijk, Marieke Bruinsma, Hein F Sleddens, Silke Oellerich, Perry S Binder, Gerrit R J Melles
PURPOSE: To identify the origin of corneal endothelial cells (host or donor) present on grafts at various time points after Descemet membrane endothelial keratoplasty (DMEK), using fluorescence in situ hybridization (FISH) of sex chromosomes on post mortem corneas with sex mismatch between the donor and host. METHODS: Corneoscleral buttons of 6 post mortem DMEK eyes of 4 patients, operated for Fuchs endothelial dystrophy, with an average postoperative time of 2...
January 2017: Cornea
https://www.readbyqxmd.com/read/27617870/surgical-management-of-limbal-dermoids-using-anterior-corneal-buttons-from-descemet-stripping-automated-endothelial-keratoplasty-donor-tissue-as-patch-grafts
#15
Kuan-I Wu, Hsiao-Sang Chu, Amy Shih-I Pai, Yu-Chih Hou, Szu-Yuan Lin, Wei-Li Chen, Fung-Rong Hu
PURPOSE: To assess the surgical and clinical outcomes of anterior lamellar keratoplasty using anterior corneal buttons from Descemet stripping automated endothelial keratoplasty (DSAEK) donor tissue. METHODS: Retrospective data from 8 patients with unilateral limbal dermoids, treated between February 2011 and January 2016 at National Taiwan University Hospital, were analyzed. Donor corneas for DSAEK were divided into anterior and posterior lamellae using a 350-μm microkeratome...
January 2017: Cornea
https://www.readbyqxmd.com/read/27362885/donor-tissue-preparation-for-bowman-layer-transplantation
#16
Esther A Groeneveld-van Beek, Jack Parker, Jessica T Lie, Vincent Bourgonje, Lisanne Ham, Korine van Dijk, Jacqueline van der Wees, Gerrit R J Melles
PURPOSE: To describe and compare 2 preparation techniques for Bowman layer (BL) grafts for use in BL transplantation. METHODS: A retrospective evaluation of the 2 methods for preparing BL grafts was performed, that is, BL graft preparation from donor globes not eligible for penetrating keratoplasty or endothelial keratoplasty (technique I, n = 36) and BL graft preparation from previously excised corneoscleral buttons (technique II, n = 36) that could not be used for PK or had been denuded of Descemet membrane and endothelium for Descemet membrane endothelial keratoplasty graft preparation...
December 2016: Cornea
https://www.readbyqxmd.com/read/27281829/sutureless-lamellar-corneoscleral-patch-graft-with-fibrin-sealant-for-limbal-dermoid-removal
#17
Andrew Xingyu Zhou, Balamurali Krishna Ambati
A 2-year-old boy with Goldenhar syndrome had a limbal dermoid removed and covered with a lamellar corneoscleral patch graft that was attached with fibrin glue and no sutures. The graft healed and attached well. A sutureless technique is beneficial due to decreased scarring and chance of infection.
June 3, 2016: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27170205/biophysico-functional-compatibility-of-seoul-national-university-snu-miniature-pig-cornea-as-xenocorneal-graft-for-the-use-of-human-clinical-trial
#18
Dong Hyun Kim, Jaeyoung Kim, Hyun Jeong Jeong, Hyun Ju Lee, Mee Kum Kim, Won Ryang Wee
BACKGROUND: Xenocorneal transplantation is one of the solutions for shortage of donor cornea, and remarkable advances have been made in pig-to-rhesus studies from the immunological perspective. Most successful preclinical trials have been carried out with corneas of the Seoul National University (SNU) miniature pig (SNU pig, genetically unmodified) as donor tissues; however, there has been no biophysico-functional evaluation of the SNU pig cornea as a substitute for human cornea. The purpose of this study was to investigate the biophysical and functional compatibility of SNU pig cornea for use in human clinical trials...
May 2016: Xenotransplantation
https://www.readbyqxmd.com/read/26890667/deep-laser-assisted-lamellar-anterior-keratoplasty-with-microkeratome-cut-grafts
#19
Hideaki Yokogawa, Maolong Tang, Yan Li, Liang Liu, Winston Chamberlain, David Huang
PURPOSE: The goals of this laboratory study were to evaluate the interface quality in laser-assisted lamellar anterior keratoplasty (LALAK) with microkeratome-cut grafts and achieve good graft-host apposition. METHODS: Simulated LALAK surgeries were performed on 6 pairs of eye-bank corneoscleral discs. Anterior lamellar grafts were precut with microkeratomes. Deep femtosecond (FS) laser cuts were performed on host corneas followed by excimer laser smoothing. Different parameters of FS laser cuts and excimer laser smoothing were tested...
May 2016: Cornea
https://www.readbyqxmd.com/read/26837507/preliminary-outcome-of-hemi-descemet-membrane-endothelial-keratoplasty-for-fuchs-endothelial-dystrophy
#20
Nadine Gerber-Hollbach, Jack Parker, Lamis Baydoun, Vasilios S Liarakos, Lisanne Ham, Isabel Dapena, Gerrit Rj Melles
BACKGROUND/AIMS: To evaluate the clinical outcome of a full-diameter, untrephined, semicircular Descemet graft in a consecutive series of Descemet membrane endothelial keratoplasty (hemi-DMEK), potentially allowing the harvesting of two grafts from a single donor corneoscleral rim. METHODS: Interventional case series of 10 eyes of 10 patients with Fuchs endothelial dystrophy. Best corrected visual acuity (BCVA), endothelial cell density (ECD) and central corneal thickness (CCT) were evaluated up to 6 months postoperatively, and intraoperative and postoperative complications were recorded...
November 2016: British Journal of Ophthalmology
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