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Cornea

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https://www.readbyqxmd.com/read/28520609/fuchs-endothelial-corneal-dystrophy-in-a-child
#1
Sunita Chaurasia, Muralidhar Ramappa
No abstract text is available yet for this article.
May 16, 2017: Cornea
https://www.readbyqxmd.com/read/28489723/femtosecond-laser-assisted-pterygium-surgery
#2
Matthias Fuest, Yu-Chi Liu, Minas T Coroneo, Jodhbir S Mehta
PURPOSE: Pterygium is a prevalent ocular surface disorder. Conjunctival autografting (CAG) after pterygium resection is the gold standard treatment. Thinner CAGs without Tenon tissue provide better results but are technically difficult to achieve. We report on the first femtosecond laser (FSL)-assisted pterygium surgery (FLAPS) in humans. METHODS: In a clinical trial, we treated 6 eyes of 5 patients with FLAPS. After manual removal of the pterygium, CAGs were dissected with the Ziemer Z8 at 60-μm depth and glued into the resection defect...
May 9, 2017: Cornea
https://www.readbyqxmd.com/read/28489722/bilateral-herpetic-keratitis-after-bilateral-intravitreal-bevacizumab-for-exudative-macular-degeneration
#3
Angeline M Derham, Eric Chen, Vatinee Y Bunya, Ronan E OʼMalley
PURPOSE: To report a case of bilateral herpetic epithelial keratitis after bilateral intravitreal bevacizumab injections for the treatment of exudative age-related macular degeneration. METHODS: A 66-year-old man with diabetes and an extensive history of bilateral anti-vascular endothelial growth factor treatments for exudative age-related macular degeneration received an intravitreal bevacizumab injection in the right eye and triple therapy (bevacizumab, photodynamic therapy, and triamcinolone acetonide) in the left eye...
May 9, 2017: Cornea
https://www.readbyqxmd.com/read/28489721/tear-cytokine-levels-in-contact-lens-wearers-with-acanthamoeba-keratitis
#4
Nicole Carnt, Vicente M Montanez, Grazyna Galatowicz, Neyme Veli, Virginia Calder
PURPOSE: To determine differences in key tear film cytokines between mild and severe cases of acanthamoeba keratitis (AK) and control contact lens (CL) wearers. METHODS: This was a prospective study of CL wearers with AK attending Moorfields Eye Hospital and control CL wearers from the Institute of Optometry, London. Basal tear specimens were collected by 10-μL capillary tubes (BLAUBRAND intraMark, Wertheim, Germany), and tear protein levels were measured with a multiplex magnetic bead array (Luminex 100; Luminex Corporation, Austin, TX) for cytokines interleukin (IL)-1β, IL-6, IL-8, IL-10, IL-17A, IL-17E, IL-17F, IL-22, and interferon gamma and with enzyme-linked immunosorbent assay (Abcam, Cambridge, United Kingdom) for CXCL2...
May 9, 2017: Cornea
https://www.readbyqxmd.com/read/28489720/expression-of-peroxiredoxin-2-and-vascular-endothelial-growth-factor-receptor-2-in-pterygium
#5
Yuchuan Wang, Jinyong Lin, Luxia Chen, Liming Wang, Peng Hao, Ruifang Han, Ming Ying, Xuan Li
PURPOSE: The expression of peroxiredoxin 2 and vascular endothelial growth factor receptor 2 (VEGFR2) was detected in pterygium to investigate whether they are involved in the pathogenesis or recurrence of pterygium and to evaluate the association between peroxiredoxin 2 and VEGFR2 in pterygium. METHODS: Ten normal bulbar conjunctivae, 35 primary pterygia, and 35 recurrent pterygia were obtained. Formalin-fixed, paraffin-wax-embedded tissues were analyzed by immunohistochemistry with peroxiredoxin 2 and VEGFR2 antibodies...
May 9, 2017: Cornea
https://www.readbyqxmd.com/read/28489719/microkeratome-assisted-anterior-lamellar-keratoplasty-for-the-correction-of-high-degree-postkeratoplasty-astigmatism
#6
Shay Gutfreund, Pia Leon, Massimo Busin
PURPOSE: To describe the surgical technique and report the outcomes of patients treated with microkeratome-assisted anterior lamellar keratoplasty (MALK) for the correction of high-degree postkeratoplasty astigmatism. METHODS: Four eyes of 2 patients with extremely high (>10 D) and irregular [surface asymmetry index >1.0 D] post-penetrating keratoplasty astigmatism occurring after complete suture removal underwent MALK and were followed for at least 3 years after the procedure...
May 9, 2017: Cornea
https://www.readbyqxmd.com/read/28486315/comparison-of-2-different-methods-of-transepithelial-corneal-collagen-cross-linking-analysis-of-corneal-histology-and-hysteresis
#7
Young Min Park, Ho Yoon Kim, Jong Soo Lee
PURPOSE: To compare the effect of 2 different methods of transepithelial corneal collagen cross-linking (CXL) on corneal histology and hysteresis. METHODS: The right eyes of New Zealand white rabbits (n = 50) were treated using one of the 2 transepithelial CXL methods. The eyes were then divided into 2 groups: group 1, transepithelial CXL using continuous ultraviolet A (UVA); group 2, accelerated transepithelial CXL using pulsed UVA. RESULTS: Both groups showed a postoperative increase in central corneal thickness...
May 8, 2017: Cornea
https://www.readbyqxmd.com/read/28486314/cellular-therapy-with-human-autologous-adipose-derived-adult-stem-cells-for-advanced-keratoconus
#8
Jorge L Alió Del Barrio, Mona El Zarif, María P de Miguel, Albert Azaar, Norman Makdissy, Walid Harb, Ibrahim El Achkar, Francisco Arnalich, Jorge L Alió
PURPOSE: The aim of this phase 1 study was to preliminarily evaluate the safety and efficacy of autologous adipose-derived adult stem cell (ADASC) implantation within the corneal stroma of patients with advanced keratoconus. METHODS: Five consecutive patients were selected. Autologous ADASCs were obtained by elective liposuction. ADASCs (3 × 10) contained in 1 mL saline were injected into the corneal stroma through a femtosecond-assisted 9.5-mm diameter lamellar pocket under topical anesthesia...
May 8, 2017: Cornea
https://www.readbyqxmd.com/read/28486313/comparison-of-tear-osmolarity-in-rheumatoid-arthritis-patients-with-and-without-secondary-sjogren-syndrome
#9
Alex L K Ng, Bonnie N K Choy, Tommy C Y Chan, Ian Y H Wong, Jimmy S M Lai, Mo Yin Mok
PURPOSE: To compare tear osmolarity (TO) and other dry eye parameters in rheumatoid arthritis (RA) patients with or without secondary Sjogren syndrome (sSS). METHODS: Consecutive patients with RA were divided into a sSS group and no-sSS group using conventional diagnostic criteria by rheumatologists using symptomatology, Schirmer test score, and anti-Ro or anti-La autoantibody status. The TO, Ocular Surface Disease Index, dry eye disease (DED) parameters [such as tear breakup time (TBUT) and corneal staining score] and the systemic inflammatory markers [erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP)] were compared...
May 8, 2017: Cornea
https://www.readbyqxmd.com/read/28486312/biomechanical-and-histopathologic-effects-of-pulsed-light-accelerated-epithelium-on-off-corneal-collagen-cross-linking
#10
Xiaoyu Zhang, Ling Sun, Yang Shen, Mi Tian, Jing Zhao, Yu Zhao, Meiyan Li, Xingtao Zhou
PURPOSE: This study aimed to compare the biomechanical and histopathologic effects of transepithelial and accelerated epithelium-off pulsed-light accelerated corneal collagen cross-linking (CXL). METHODS: A total of 24 New Zealand rabbits were analyzed after sham operation (control) or transepithelial or epithelium-off operation (45 mW/cm for both). The transepithelial group was treated with pulsed-light ultraviolet A for 5 minutes 20 seconds, and the epithelium-off group was treated for 90 seconds...
May 8, 2017: Cornea
https://www.readbyqxmd.com/read/28486311/free-living-amoebae-keratitis
#11
Antonio Pinna, Tiziana Porcu, Francesco Boscia, Antonella Cano, Giuseppe Erre, Antonella Mattana
PURPOSE: To describe the diagnostic and clinical features and treatment results in 43 consecutive patients with microbiologically proven free-living amoebae (FLA) keratitis. METHODS: In this hospital-based, prospective case series, corneal scrapings from 43 patients with presumed amoebic keratitis were plated on nonnutrient agar. Amoebic isolates were identified morphologically and by the polymerase chain reaction. All patients with culture-proven FLA keratitis were treated with polyhexamethylene biguanide (PHMB) 0...
May 8, 2017: Cornea
https://www.readbyqxmd.com/read/28481835/patients-perceived-treatment-effectiveness-in-dry-eye-disease
#12
Ahmad Kheirkhah, Alja Crnej, Ai Ren, Andrew Mullins, Vannarut Satitpitakul, Pedram Hamrah, Debra Schaumberg, Reza Dana
PURPOSE: Patients' perceptions of the effectiveness of a treatment, or perceived treatment effectiveness (PTE), play an important role in medicine. This study aimed to evaluate patients' PTE in dry eye disease (DED) and investigate factors contributing to these patients' perceptions. METHODS: This cross-sectional study included 66 patients with DED. At enrollment, all patients had comprehensive ophthalmic assessment. In addition, to evaluate the patient's PTE, they were asked to use a 10-point scale ranging from "strongly disagree (score 1)" to "strongly agree (score 10)" to score their views on whether their DED treatments had been effective...
May 3, 2017: Cornea
https://www.readbyqxmd.com/read/28481834/immunohistochemical-profiling-of-corneas-with-fuchs-endothelial-corneal-dystrophy
#13
An-Katrien De Roo, Thomas Janssens, Beatrijs Foets, Joost J van den Oord
PURPOSE: Fuchs endothelial corneal dystrophy (FECD) is the leading indication for endothelial keratoplasty. Further insight into its pathophysiology is needed to develop alternative therapies. METHODS: Sixteen genes from a previous microarray expression experiment (FECD vs. normal) were validated using immunohistochemistry on paraffin-embedded corneas (n = 6 FECD, n = 6 normal). The results were quantified manually and semiautomatically. RESULTS: A higher percentage of corneal endothelial cells stained for alpha-smooth muscle actin (αSMA), cytokeratin 7, and superoxide dismutase 3 in FECD versus normal [odds ratios (ORs) of 60...
May 3, 2017: Cornea
https://www.readbyqxmd.com/read/28481833/air-pump-assisted-graft-centration-graft-edge-unfolding-and-graft-uncreasing-in-young-donor-graft-pre-descemet-endothelial-keratoplasty
#14
Soosan Jacob, Smita Narasimhan, Amar Agarwal, Athiya Agarwal, Saijimol A I
PURPOSE: To assess an air pump-assisted technique for graft centration, graft edge unfolding, and graft uncreasing while performing pre-Descemet endothelial keratoplasty (PDEK) using young donor grafts. METHODS: Continuous pressurized air infusion was used for graft centration, graft edge unfolding, and graft unwrinkling. RESULTS: Ten eyes of 10 patients underwent PDEK with donors aged below 40 years. In all eyes, the donor scrolled into tight scrolls...
May 3, 2017: Cornea
https://www.readbyqxmd.com/read/28481832/new-technique-of-femtosecond-laser-assisted-intracorneal-ring-segment-implantation
#15
Luis Izquierdo, Alejandra Orozco, Maria A Henriquez
PURPOSE: To describe a new technique of femtosecond laser-assisted intracorneal ring segment implantation. METHODS: The study included 6 eyes of 5 patients. Software of the LDV Z6 femtosecond laser was modified to create a 110-degree reverse side cut between the corneal surface and incision instead of the conventional 90 degree angle (which changed the angle between the incision and tunnel from conventional 90-70 degrees) and 2 disjointed tunnels separated by 10 degrees arc length at the proximal and distal ends...
May 3, 2017: Cornea
https://www.readbyqxmd.com/read/28463890/estimating-total-corneal-astigmatism-from-anterior-corneal-data
#16
Kristian Næser, Giacomo Savini, Jesper Flethøj Bregnhøj
PURPOSE: To determine keratometric astigmatism (KA), posterior corneal astigmatism (PCA), and total corneal astigmatism (TCA) in 951 normal eyes, to establish a model for estimating TCA from anterior corneal data, and to test this method in a new group of eyes with toric intraocular lenses (TIOLs). METHODS: We used a Pentacam HR (high-resolution) Scheimpflug camera to determine KA, PCA, and TCA in 951 normal eyes. A model to estimate TCA from anterior corneal data was evaluated by the difference (=error) between the measured TCA and the estimated value...
May 1, 2017: Cornea
https://www.readbyqxmd.com/read/28445193/a-pilot-randomized-trial-on-safety-and-efficacy-of-a-novel-topical-combined-inhibitor-of-janus-kinase-1-3-and-spleen-tyrosine-kinase-for-gvhd-associated-ocular-surface-disease
#17
Ahmad Kheirkhah, Antonio Di Zazzo, Vannarut Satitpitakul, Merle Fernandez, Daniel Magilavy, Reza Dana
PURPOSE: Janus kinase (JAK) and spleen tyrosine kinase (SYK) play critical functions in T-cell activation and in inflammation. Because of their antiinflammatory effects, JAK and SYK inhibitors have recently been evaluated in several immunopathogenic disorders. This pilot study was designed to assess the safety and efficacy of a topical combined JAK/SYK inhibitor, R348, ophthalmic solution for treatment of ocular surface disease in graft-versus-host disease (GVHD). METHODS: This phase 2, double-masked, randomized, pilot trial included 30 patients with ocular surface disease due to GVHD who were randomized to receive topical 0...
April 25, 2017: Cornea
https://www.readbyqxmd.com/read/28445192/one-year-clinical-outcomes-of-a-corneal-inlay-for-presbyopia
#18
Sandra M C Beer, Rodrigo Santos, Eliane M Nakano, Flavio Hirai, Enrico J Nitschke, Claudia Francesconi, Mauro Campos
PURPOSE: To report the results of a 1-year follow-up analysis of the safety and efficacy of the Flexivue Microlens corneal inlay. METHODS: The Flexivue Microlens corneal inlay was implanted in the nondominant eye of patients with emmetropic presbyopia (a spherical equivalent of -0.5 to 1.00 diopter) after the creation of a 300-μm deep stromal pocket, using a femtosecond laser. The patients were followed up according to a clinical protocol involving refraction, anterior segment imaging analysis (Oculyzer), and optical quality analysis (OPD-Scan)...
April 25, 2017: Cornea
https://www.readbyqxmd.com/read/28437276/clinical-outcome-of-rebubbling-for-graft-detachment-after-descemet-membrane-endothelial-keratoplasty
#19
Nadine Gerber-Hollbach, Lamis Baydoun, Ester Fernández López, Laurence E Frank, Isabel Dapena, Vasilios S Liarakos, Sontje-Chiao Schaal, Lisanne Ham, Silke Oellerich, Gerrit R J Melles
PURPOSE: To assess the clinical outcome after successful rebubbling procedures for visually significant graft detachment after Descemet membrane endothelial keratoplasty (DMEK). METHODS: From a total of 760 consecutive DMEK surgeries, 41 eyes required rebubbling. Of those, 33 eyes of 31 patients were successful and were included in our retrospective outcome analysis study. Main outcome measures were compared with those of matched controls with uneventful primary DMEK (attached DMEK grafts without rebubbling)...
April 21, 2017: Cornea
https://www.readbyqxmd.com/read/28437275/descemet-membrane-endothelial-keratoplasty-after-failed-descemet-stripping-without-endothelial-keratoplasty
#20
Rohini Rao, Durga S Borkar, Kathryn A Colby, Peter B Veldman
PURPOSE: To describe the clinical course, surgical experience, and postoperative outcomes of 3 patients with Fuchs endothelial dystrophy who underwent Descemet membrane endothelial keratoplasty (DMEK) after failed Descemet stripping without endothelial keratoplasty. METHODS: Three patients who underwent DMEK for management of persistent corneal edema after deliberate Descemet stripping in the setting of Fuchs endothelial dystrophy were identified. Patients were examined at day 1, week 1, and months 1, 3, and 6 after DMEK...
April 21, 2017: Cornea
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