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https://www.readbyqxmd.com/read/29445872/bowman-layer-transplantation-5-year-results
#1
Korine van Dijk, Jack S Parker, Lamis Baydoun, Abbas Ilyas, Isabel Dapena, Esther A Groeneveld-van Beek, Gerrit R J Melles
PURPOSE: The purpose of this study was to evaluate the 5-year clinical results of isolated Bowman layer (BL) transplantation in the treatment of advanced keratoconus. METHODS: In this prospective, single-center, interventional case series at a tertiary referral center, 20 eyes of 17 patients with advanced keratoconus underwent BL transplantation, i.e. an isolated Bowman layer graft was positioned into a manually dissected mid-stromal pocket. Scheimpflug-based corneal tomography measurements, best corrected spectacle and contact lens visual acuities (BSCVA and BCLVA), endothelial cell density, and complications were evaluated up to 5 years after surgery...
February 14, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29437570/immunosuppression-by-a-subconjunctival-implant-releasing-dexamethasone-in-a-rabbit-model-of-penetrating-keratoplasty
#2
Emmanuel Crouzet, Thibaud Garcin, Anne-Sophie Gauthier, Zhiguo He, Chantal Perrache, Xavier Delavenne, Thierry Basset, Michel Peoc'h, Philippe Gain, Gilles Thuret
AIMS: To evaluate the efficacy of a subconjunctival dexamethasone-releasing implant in preventing rejection of penetrating keratoplasty (PK) in an animal model. METHODS: Twenty-two rabbits underwent allogenic PK. After randomisation, they received either a 700 µg dexamethasone implant under the conjunctiva at the end of surgery (n=10), one dexamethasone 1 mg/mL eye-drop thrice daily (n=6) or a placebo thrice daily (n=6). The suture was left in place. Animals were observed weekly by slit-lamp and optical coherence tomography with quantification of transparency, neovascularisation and central corneal thickness (CCT)...
February 3, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29436059/outcomes-of-penetrating-keratoplasty-following-autologous-cultivated-limbal-epithelial-stem-cell-transplantation
#3
Gustavo S Figueiredo, Borja Salvador-Culla, Oliver J Baylis, Hardeep S Mudhar, Majlinda Lako, Francisco C Figueiredo
PURPOSE: To investigate the outcomes of penetrating keratoplasty (PKP) following autologous cultivated limbal epithelial stem cell transplantation (CLET). METHODS: A prospective, single centre, interventional cohort study investigating patients with unilateral total limbal stem cell deficiency (LSCD) treated with CLET who underwent PKP. Patients with confirmed corneal re-epithelialization > 6 months post-CLET, and with best-corrected visual acuity (BCVA) <0...
February 13, 2018: Stem Cells
https://www.readbyqxmd.com/read/29429294/-pre-descement-membrane-endothelial-keratoplasty-for-treatment-of-patients-with-corneal-endothelial-decompensation
#4
T Huang, L Jiang, J Zhan, C Ouyang
Objective: To investigate the clinical outcomes of Pre-descement membrane endothelial keratoplasty (PDEK) for treatment of patients with corneal endothelial decompensation. Methods: Retrospective study of case series. The cases of 20 patients (20 eyes) who were diagnosed with corneal endothelial decompensation induced by various original diseases and received PDEK during July 2016 and December 2016 at Zhongshan Ophthalmic Center have been analyzed. The participants included 8 males and 12 females with an average age of (59...
February 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29429293/-deep-anterior-lamellar-keratoplasty-combined-with-antiviral-therapy-in-the-treatment-of-severe-herpes-necrotizing-stromal-keratitis
#5
S X Li, J T Wang, Y Jiang, X Wang, W Y Shi
Objective: To evaluate the efficacy of modified deep lamellar keratoplasty (DLKP) combined with antiviral medications for severe herpes necrotizing stromal keratitis. Methods: Retrospective case series study. Modified DLKP was performed in combination with antiviral medications in fifty patients (50 eyes) with severe necrotizing stromal keratitis, which was unresponsive to systemic and topical antiviral treatment for 1 week, at Shandong Eye Hospital. Before surgery, the operated eyes were examined using slit-lamp microscopy...
February 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29426435/sural-nerve-graft-for-neurotrophic-keratitis-early-results
#6
Ezekiel Weis, Avi Rubinov, Ahmed Rustom Al-Ghoul, Farrah Meng-Kay Yau
OBJECTIVE: To report our center's experience in treating neurotrophic keratitis (NK) through corneal neurotization using nerve transfers and sural nerve grafts in the adult population. DESIGN: Prospective observational case series, single center study. METHODS: Six consecutive patients (5 males and 1 female) with severe NK were evaluated. All patients had complete corneal anaesthesia in the neurotrophic eye. Three patients had unstable epithelial disease with recurrent breakdowns despite maximal medical and standard surgical management; three presented with dense scarring of their cornea...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29423280/biomaterials-enabled-cornea-regeneration-in-patients-at-high-risk-for-rejection-of-donor-tissue-transplantation
#7
M Mirazul Islam, Oleksiy Buznyk, Jagadesh C Reddy, Nataliya Pasyechnikova, Emilio I Alarcon, Sally Hayes, Philip Lewis, Per Fagerholm, Chaoliang He, Stanislav Iakymenko, Wenguang Liu, Keith M Meek, Virender S Sangwan, May Griffith
The severe worldwide shortage of donor organs, and severe pathologies placing patients at high risk for rejecting conventional cornea transplantation, have left many corneal blind patients untreated. Following successful pre-clinical evaluation in mini-pigs, we tested a biomaterials-enabled pro-regeneration strategy to restore corneal integrity in an open-label observational study of six patients. Cell-free corneal implants comprising recombinant human collagen and phosphorylcholine were grafted by anterior lamellar keratoplasty into corneas of unilaterally blind patients diagnosed at high-risk for rejecting donor allografts...
2018: NPJ Regenerative Medicine
https://www.readbyqxmd.com/read/29421293/chronic-ocular-sequelae-of-stevens-johnson-syndrome-in-children-long-term-impact-of-appropriate-therapy-on-natural-history-of-disease
#8
Sayan Basu, Swapna S Shanbhag, Arjun Gokani, Richa Kedar, Chirag Bahuguna, Virender S Sangwan
PURPOSE: To describe the long-term ocular and visual morbidity in children with chronic sequelae of Stevens-Johnson Syndrome (SJS) and visual outcomes of various management strategies. DESIGN: Retrospective comparative case series. METHODS: This study included 568 eyes of 284 children with SJS who presented between 1990 and 2015. Affected eyes either received conservative therapy (n=440) or definitive management (n=128) including lid margin mucous membrane grafting (MMG), prosthetic replacement of the ocular surface ecosystem (PROSE) contact lenses, allogeneic limbal transplantation or keratoprosthesis using an algorithmic approach based on the severity of dryness and cause and extent of corneal damage...
February 5, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29419526/descemet-stripping-automated-endothelialkeratoplasty-dsaek-versus-repeat-penetrating-keratoplasty-pkp-to-manage-eyes-with-failed-corneal-graft
#9
Abdulrahman Khairallah
BACKGROUND: Failed corneal graft management is a challenge. Descemet stripping automated endothe.lial keratoplasty (DSAEK) and repeat penetrating keratoplasty (PKP) are two options. Only two studies have compared outcomes of DSAEK and PKP in the management of a failed graft. OBJECTIVE: To compare the visual outcomes, changes in intraocular pressure (IOP) and complications in eyes with failed corneal grafts that were subsequently managed with DSAEK and PKP. DESIGN: Retrospective cohort study...
January 2018: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29416380/keratoconus-treatment-using-femtosecond-assisted-intrastromal-corneal-graft-faiscg-surgery-a-case-series
#10
Khosrow Jadidi, Seyed Aliasghar Mosavi
We describe an intrastromal corneal graft technique that uses femtosecond laser to create a desirable corneal lenticule with precise diameter, depth, and shape as well as an intra-stromal pocket in keratoconus patients. The technique seems to be a feasible and safe treatment option to treat keratoconic eyes with reference to the irregularity and instability of cornea. The technique can be performed easily and appears safe and effective. At 7 days postoperatively, all eyes were white and quiet, and the grafts were clear...
2018: International Medical Case Reports Journal
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
#11
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/29408907/five-year-outcomes-of-boston-type-i-keratoprosthesis-as-primary-versus-secondary-penetrating-corneal-procedure-in-a-matched-case-control-study
#12
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/29408829/femtosecond-laser-assisted-small-incision-endokeratophakia-using-a-xenogeneic-lenticule-in-rhesus-monkeys
#13
Miao He, He Jin, Hong He, Hui Ding, Wei Wang, Liangping Liu, Chi Zhang, Xingwu Zhong
PURPOSE: To evaluate the feasibility and safety of xenogeneic endokeratophakia in rhesus monkeys and to explore the effects of a concave lenticule on refractive power. METHODS: Three adult New Zealand white rabbits and 6 healthy rhesus monkeys were used. The xenogenic concave grafts were created from the rabbits using a modified small incision lenticule extraction technique; after being cryopreserved in glycerol for 1 week, the grafts were implanted into the monkey recipient corneas...
March 2018: Cornea
https://www.readbyqxmd.com/read/29405795/oral-mucosa-grafting-in-periorbital-reconstruction
#14
Andre Grixti, Raman Malhotra
To provide an extensive literature review on the clinical indications of oral mucosa grafts (OMG) and minor salivary gland grafts (MSGG) in periorbital reconstruction together with safe practice graft harvesting techniques to minimize donor-site morbidity. A literature review was performed by searching the databases of PUBMED, EMBASE, and COCHRANE library using the keywords: minor salivary glands; oral mucosal graft; orbit; and eye. The bibliographies of the pertinent articles were examined for additional papers...
February 6, 2018: Orbit
https://www.readbyqxmd.com/read/29392310/preoperative-aqueous-cytokine-levels-are-associated-with-endothelial-cell-loss-after-descemet-s-stripping-automated-endothelial-keratoplasty
#15
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/29390260/paraproteinemic-keratopathy-in-monoclonal-gammopathy-of-undetermined-significance-treated-with-primary-keratoprosthesis-case-report-histopathologic-findings-and-world-literature-review
#16
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/29386617/microbial-keratitis-in-corneal-grafts-predisposing-factors-and-outcomes
#17
A C O Okonkwo, W F Siah, H D J Hogg, H Anwar, F C Figueiredo
PurposeTo identify the nature of microbial keratitis in corneal grafts and the clinical outcomes at a tertiary hospital in the United Kingdom.Patients and methodsA retrospective case series of microbial keratitis in corneal grafts at the Royal Victoria Infirmary, Newcastle upon Tyne over a 17-year period (1997-2014).ResultsA total of 759 consecutive corneal grafts were identified from the Cornea Transplantation database. Of these, 59 episodes of microbial keratitis occurred in 41 eyes of 41 patients (5.4%; 19 male, 46...
January 26, 2018: Eye
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
#18
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
#19
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/29382955/ocular-findings-and-ocular-graft-versus-host-disease-after-allogeneic-stem-cell-transplantation-without-total-body-irradiation
#20
Meeta Pathak, Phoi Phoi Diep, Xiaoran Lai, Lorentz Brinch, Ellen Ruud, Liv Drolsum
Patients treated with allogeneic stem cell transplantation (allo-SCT) often develop ocular complications. To investigate the ocular findings in young long-term survivors after allo-SCT without TBI, we examined 96 patients more than 5 years after transplantation. All patients were under 30 years of age at transplantation. The mean follow-up time was 16.8 years (range 6.0-26.1 years). The study was a part of the Norwegian Allo Survivorship Study investigating health impairments in young survivors after allo-SCT...
January 30, 2018: Bone Marrow Transplantation
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