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Corneal surgery

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https://www.readbyqxmd.com/read/29677004/new-surgical-modality-for-management-of-corneal-perforation-using-bowman-membrane
#1
Dharamveer Singh Choudhary, Nikhil Agrawal
PURPOSE: To describe a new surgical modality, "Bowman membrane tuck-in," for management of small to medium sized corneal perforation of a noninfectious etiology. METHODS: Two patients with corneal perforation of a noninfectious etiology and less than 4 mm in size underwent Bowman membrane tuck-in, a new surgical procedure. In this technique, Bowman membrane harvested from the donor cornea was tucked inside the stromal pocket of host tissue, which was prepared by 360-degree anterior stromal lamellar dissection...
April 19, 2018: Cornea
https://www.readbyqxmd.com/read/29676312/outcomes-of-keratoplasty-in-lattice-corneal-dystrophy-in-a-large-cohort-of-indian-eyes
#2
Ashik Mohamed, Sunita Chaurasia, Muralidhar Ramappa, Somasheila I Murthy, Prashant Garg
Purpose: The purpose of this study is to evaluate the outcomes of keratoplasty for lattice corneal dystrophy (LCD) performed at a tertiary eye care center. Methods: A retrospective review of medical records of those patients who were clinically diagnosed to have LCD (72 eyes of 57 patients) and underwent either penetrating keratoplasty (PK, 58 eyes of 46 patients) or deep anterior lamellar keratoplasty (DALK, 14 eyes of 13 patients) between the years 1987 and 2014 was performed...
May 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29676302/keratoprosthesis-current-global-scenario-and-a-broad-indian-perspective
#3
REVIEW
Geetha Iyer, Bhaskar Srinivasan, Shweta Agarwal, Deepti Talele, Ekta Rishi, Pukhraj Rishi, Sripriya Krishnamurthy, Lingam Vijaya, Nirmala Subramanian, Shanmugasundaram Somasundaram
Keratoprosthesis (Kpro) forms the last resort for bilateral end-stage corneal blindness. The Boston Type 1 and 2 Kpros, the modified osteo-odonto Kpro and the osteo-Kpro are the more frequently and commonly performed Kpros, and this review attempts to compile the current data available on these Kpros worldwide from large single-center studies and compare the indications and outcomes with Kpros in the Indian scenario. Although the indications have significantly expanded over the years and the complications have reduced with modifications in design and postoperative regimen, these are procedures that require an exclusive setup, and a commitment toward long-term follow-up and post-Kpro care...
May 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675390/childhood-glaucoma-profile-in-dakahelia-egypt-a-retrospective-study
#4
Tharwat H Mokbel, Eman M El Hefney, Sherein M Hagras, Ahmed A ALNagdy, Amani E Badawi, Manal A Kasem, Shereen M El Shaer
AIM: To analyze childhood glaucoma regarding its demographics, presentations, different causes and surgical modalities used among patients in Dakahelia and to apply the Childhood Glaucoma Research Network (CGRN) classification retrospectively to evaluate its convenience. METHODS: A retrospective study in which the medical files of all glaucoma patients <16 years old presented to Mansoura Ophthalmic Center, Mansoura University from 2014 to 2017, were retrieved and analyzed...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675388/consistent-comparison-of-angle-kappa-adjustment-between-oculyzer-and-topolyzer-vario-topography-guided-lasik-for-myopia-by-ex500-excimer-laser
#5
Ming-Shen Sun, Li Zhang, Ning Guo, Yan-Zheng Song, Feng-Ju Zhang
AIM: To evaluate and compare the uniformity of angle Kappa adjustment between Oculyzer and Topolyzer Vario topography guided ablation of laser in situ keratomileusis (LASIK) by EX500 excimer laser for myopia. METHODS: Totally 145 cases (290 consecutive eyes )with myopia received LASIK with a target of emmetropia. The ablation for 86 cases (172 eyes) was guided manually based on Oculyzer topography (study group), while the ablation for 59 cases (118 eyes) was guided automatically by Topolyzer Vario topography (control group)...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675379/photorefractive-keratectomy-after-cataract-surgery-in-uncommon-cases-long-term-results
#6
Anna Maria Roszkowska, Mario Urso, Giuseppe Alberto Signorino, Leopoldo Spadea, Pasquale Aragona
AIM: To evaluate the efficacy and safety of the excimer laser correction of the residual refractive errors after cataract extraction with intraocular lens (IOL) implantation in uncommon cases. METHODS: Totally 24 patients with high residual refractive error after cataract surgery with IOL implantation were examined. Twenty-two patients had a history of phacoemulsification and IOL implantation, and two had extra-capsular cataract extraction with IOL implantation...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29673631/comparison-between-the-prechopping-method-with-a-reverse-chopper-and-the-routine-stop-and-chop-method-in-treating-cataract-with-grade-iv-hard-nucleus
#7
Y Zhao, K Yang, J Li, S Zhu
The aim of this study was to compare the safety and efficacy between the prechopping method using a Reverse Chopper (iHPC) and the routine stop-and-chop (RSC) method in phacoemulsification of cataracts with grade IV hard nuclei (HNC (≥IV)). A total of 32 patients (32 eyes) scheduled for Phaco combined with intraocular lens (Phaco-IOL) for HNC (≥IV) from March 2015 to January 2016 were enrolled and randomly divided into two groups (the iHPC group, n=16 and the RSC group, n=16) so as to compare the effective intraoperative Phaco time, corneal edema 1-3 days after surgery, best corrected visual acuity (BCVA), and rate of loss of corneal endothelial cells (CECs) 1 month after surgery...
April 17, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29673260/glaucoma-progression-and-its-relationship-with-corrected-and-uncorrected-intraocular-pressure-in-eyes-with-history-of-refractive-corneal-surgery
#8
Junki Kwon, Kyung Rim Sung, Jaehyuck Jo, Sung Ho Yang
PURPOSE: To investigate glaucoma progression and its relationship with corrected and uncorrected intraocular pressure (IOP) in patients with a history of refractive corneal surgery (RCS). METHODS: Total 56 eyes of 56 primary open-angle glaucoma patients who had a history of RCS were included. Mean keratometry and central corneal thickness were measured at the time of glaucoma diagnosis. Three IOP measurements, i.e., uncorrected IOP (UC IOP) and corrected IOP calculated by applying the Kohlhaas (CK IOP) and Ehlers (CE IOP) formulas, were used...
April 20, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29669369/cataract-surgery-in-high-hyperopia
#9
Nicolas Philipp Waldmann, Nadine Gerber, Warren Hill, David Goldblum
BACKGROUND: Although cataract surgery is a well-established and standardised procedure, it can be demanding and associated with higher complication rates in high hyperopia. We present clinical data for highly hyperopic patients who underwent cataract surgery over a 12-year period (2005 - 2016) and at a single centre. PATIENTS AND METHODS: Out of a total of 11 434 cataract operations, 41 highly hyperopic eyes (SN60AT ≥ 31 dpt) were included for analysis...
April 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29669367/12-year-outcomes-of-microkeratome-assisted-anterior-lamellar-therapeutic-keratoplasty-altk-for-disorders-of-the-anterior-part-of-the-corneal-stroma-a-comparative-review-of-adult-and-children
#10
Ivo Guber, Ciara Bergin, Philippe Othenin-Girard, Francis Munier, François Majo
PURPOSE: To report the visual outcomes and complications of automated anterior lamellar therapeutic keratoplasty (ALTK) in adults and children, and to examine these outcomes as a function of age and etiology. METHODS: A consecutive series of cases undergoing automated ALTK procedures performed at the Jules-Gonin Eye Hospital Lausanne, Switzerland, between June 2003 and January 2015. Only patients with at least 3 months of follow-up were included. RESULTS: There were 53 eyes (24 right) of 51 patients (17 female, 16 juvenile), with a mean age of 34...
April 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29668573/central-corneal-thickness-and-endothelial-damage-after-cataract-surgery
#11
Palmiro Cornetta, Maddalena De Bernardo, Nicola Rosa
No abstract text is available yet for this article.
April 17, 2018: Cornea
https://www.readbyqxmd.com/read/29668572/atypical-presentation-of-iridocorneal-endothelial-syndrome-with-band-keratopathy-but-no-corneal-edema-managed-with-descemet-membrane-endothelial-keratoplasty
#12
Vasiliki Zygoura, Itay Lavy, Robert M Verdijk, Diana Santander-García, Lamis Baydoun, Isabel Dapena, Gerrit R J Melles
PURPOSE: To report an unusual presentation of iridocorneal endothelial (ICE) syndrome associated with band keratopathy and its management with ethylenediamine-tetraacetic acid (EDTA) chelation and Descemet membrane endothelial keratoplasty (DMEK). METHODS: A 57-year-old female patient presented with unilateral progressive painless visual impairment, corneal band keratopathy, and morphological corneal endothelial changes without corneal edema or any previous ophthalmic, medical, or family history...
April 17, 2018: Cornea
https://www.readbyqxmd.com/read/29666915/corneal-crosslinking-cxl-with-18-mw-cm-2-irradiance-and-5-4-j-cm-2-radiant-exposure-early-postoperative-safety
#13
Isaak Fischinger, Theo G Seiler, Karthiga Santhirasegaram, Moritz Pettenkofer, Chris P Lohmann, Daniel Zapp
PURPOSE: To investigate safety of accelerated corneal crosslinking during the first postoperative month. METHODS: In this retrospective study, 76 eyes of 60 patients with verified progressive keratectasia were enrolled in this study and followed for 1 month after accelerated CXL (18 mW/cm2 for 5 min, radiant exposure 5.4 J/cm2 ) (A-CXL(5*18)). Preoperatively, objective refraction, slit lamp inspection, and corneal tomography were performed. Early postoperative slit lamp examinations were performed on days 1 and 4...
April 17, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29663139/corneal-biopsy-for-diagnosis-of-recalcitrant-microbial-keratitis
#14
Dana Robaei, U-Teng Chan, Pauline Khoo, Svetlana Cherepanoff, Yi-Chiao Li, Jane Hanrahan, Stephanie Watson
PURPOSE: To document the findings of corneal biopsies for progressive microbial keratitis in a large tertiary referral institution. METHODS: A retrospective medical records review of all patients who underwent at least one corneal biopsy for the diagnosis of microbial keratitis at Sydney Eye Hospital, Australia between January 1, 2010 and December 31, 2016 was performed. RESULTS: Thirty-eight patients (18 men and 20 women) underwent a corneal biopsy for progressive microbial keratitis unresponsive to broad-spectrum topical antimicrobials...
April 16, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29658515/assessment-of-corneal-and-fatty-tissues-biomechanical-response-in-dynamic-tonometry-tests-by-using-inverse-models
#15
Mohammad Jannesari, Mahmoud Kadkhodaei, Peiman Mosaddegh, Henryk Kasprzak, Mahmoud Jabbarvand Behrouz
PURPOSE: The assessment of corneal biomechanics is essential for studying ophthalmological operations, such as refractive surgeries, and for more accurate estimation of intraocular pressure. The chief aim of the current study is to characterize corneal and fatty tissues in order to construct a model to predict eye globe behavior during dynamic tonometry tests. METHODS: In the present study, images from corneal deformation, acquired from Corvis ST tonometer, were processed...
2018: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29658389/comparison-of-endoscopic-assisted-and-temporary-keratoprosthesis-assisted-vitrectomy-in-combat-ocular-trauma-experience-at-a-tertiary-eye-center-in-turkey
#16
Onder Ayyildiz, Ali Hakan Durukan
Objective This study was performed to compare the functional and anatomical results of endoscopic-assisted and temporary keratoprosthesis (TKP)-assisted vitrectomy in patients with combat ocular trauma (COT). Methods The medical records of 14 severely injured eyes of 12 patients who underwent endoscopy or TKP implantation in combination with vitreoretinal surgery from 2007 to 2015 were retrospectively evaluated. The patients' ocular history and functional and anatomic anterior and posterior segment results were analyzed...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29658366/a-novel-case-using-femtosecond-laser-acquired-lenticule-for-recurrent-pterygium-case-report-and-literature-review
#17
Om Prakash Pant, Ji-Long Hao, Dan-Dan Zhou, Fan Wang, Cheng-Wei Lu
Small incision lenticule extraction (SMILE) is a minimally invasive, safe and flapless femtosecond laser technique used mainly to correct myopia through extraction of a corneal lenticule. Lenticules obtained in this way are transparent and of high quality, and thus, can be used to treat other corneal diseases. A 65-year-old male patient presented with recurrent pterygium complicated by thin cornea. The patient was treated surgically using a SMILE-extracted lenticule to avoid further complications and to maintain eyeball integrity...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29649920/corneal-transplantation-trends-in-france-from-2004-to-2015-a-12-year-review
#18
Guillaume Bigan, Marc Puyraveau, Maher Saleh, Philippe Gain, Isabelle Martinache, Bernard Delbosc, Anne-Sophie Gauthier
PURPOSE: The aim of this study was to report the 12-year longitudinal trends in indication and corneal transplantation techniques in France from 2004 to 2015. RESULTS: The records of all corneal transplantations performed from 2004 to 2015 in France were retrospectively reviewed. The patient indications and types of transplant performed were analyzed. A total of 46,658 corneal transplantations were performed between 2004 and 2015, with 34,187 (73.3%) penetrating keratoplasty and 10,452 (22...
April 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29649838/-limbokeratoplasty-to-treat-lattice-and-granular-corneal-dystrophies
#19
Thabo Lapp, Philip Maier, Daniel Böhringer, Thomas Reinhard
The surgical technique of limbokeratoplasty (limbo-KP) was initially established for the treatment of severe limbal deficiencies. Besides improving visual acuity, surgery is aimed at ensuring complete, long-lasting epithelialization of the ocular surface. Due to the extension of the indication spectrum, limbo-KPs are also used in various forms of epithelial/stromal corneal dystrophies such as lattice and granular (transforming growth factor beta-induced [TGFBI] gene mutation associated) dystrophies. The objective of limbo-KP is to ensure prolonged clear graft survival without a recurrence of the dystrophy as otherwise observed after conventional keratoplasty...
April 12, 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29644238/mechanisms-of-optical-regression-following-corneal-laser-refractive-surgery-epithelial-and-stromal-responses
#20
REVIEW
Majid Moshirfar, Jordan D Desautels, Brian D Walker, Michael S Murri, Orry C Birdsong, Phillip C Hoopes
Laser vision correction is a safe and effective method of reducing spectacle dependence. Photorefractive Keratectomy (PRK), Laser In Situ Keratomileusis (LASIK), and Small-Incision Lenticule Extraction (SMILE) can accurately correct myopia, hyperopia, and astigmatism. Although these procedures are nearing optimization in terms of their ability to produce a desired refractive target, the long term cellular responses of the cornea to these procedures can cause patients to regress from the their ideal postoperative refraction...
2018: Medical Hypothesis, Discovery and Innovation in Ophthalmology
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