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laser in ophthalmology

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https://www.readbyqxmd.com/read/28317680/risk-for-microbial-keratitis-comparative-metaanalysis-of-contact-lens-wearers-and-post-laser-in-situ-keratomileusis-patients
#1
Jordan Masters, Mehmet Kocak, Aaron Waite
PURPOSE: To compare the risk for microbial keratitis in contact lens wearers stratified by wear schedule with the risk after laser in situ keratomileusis (LASIK). SETTING: Hamilton Eye Institute and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, USA. DESIGN: Comparative metaanalysis and literature review. METHODS: An extensive literature search was performed in the PubMed database between December 2014 and July 2015...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28297035/short-term-effects-of-early-switching-to-ranibizumab-or-aflibercept-in-diabetic-macular-edema-cases-with-non-response-to-bevacizumab
#2
Mohammed Ashraf, Ahmed A R Souka, Hassan ElKayal
BACKGROUND AND OBJECTIVES: To study the effect of early switching to ranibizumab (Lucentis; Genentech, South San Francisco, CA) or aflibercept (Eylea; Regeneron, Tarrytown, NY) in cases of diabetic macular edema (DME) that have shown no response to bevacizumab (Avastin; Genentech, South San Francisco, CA). PATIENTS AND METHODS: A retrospective study involving 59 eyes of 45 patients with DME previously treated with bevacizumab. Patients were switched either to ranibizumab or aflibercept...
March 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28257508/longitudinal-changes-of-ocular-blood-flow-using-laser-speckle-flowgraphy-during-normal-pregnancy
#3
Takahiro Sato, Junichi Sugawara, Naoko Aizawa, Noriyuki Iwama, Fumiaki Takahashi, Michiyo Nakamura-Kurakata, Masatoshi Saito, Takashi Sugiyama, Hiroshi Kunikata, Toru Nakazawa, Nobuo Yaegashi
PURPOSE: Innovative laser speckle flowgraphy (LSFG) enables noninvasive evaluation of retinal microcirculation and the usefulness has been reported in the field of ophthalmology. LSFG has allowed us to measure the real time changes of retinal blood flow without pupillary dilatations and contrast media. Herein, we investigated the change of retinal blood flow in normal pregnant women during gestation using LSFG. METHODS: A prospective cohort study was conducted in 53 pregnant women who visited our institution between January, 2013 and July, 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28243058/effects-of-3-trehalose-as-an-adjuvant-treatment-after-lasik
#4
Antonio J Mateo Orobia, Paula Casas Pascual, José Á Cristóbal Bescós, Diana Perez García, Carlos Peiro Embid, M Ángeles Del Buey Sayas, Valentyna Korobko Kulikova, Noelia Lafuente Ojeda
PURPOSE: To evaluate the effect of 3% trehalose as an adjuvant in the standard treatment after laser-assisted in situ keratomileusis. DESIGN: Interventional prospective comparative single-blind study. SETTING: Department of Ophthalmology, Hospital Quirón Zaragoza, Spain. METHODS: A total of 26 eyes (13 patients) were included, of which 12 eyes (group 1) received conventional treatment with lubricant drops of hyaluronic acid (0...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28208899/study-of-variation-in-intraocular-pressure-spike-iop-following-nd-yag-laser-capsulotomy
#5
Niharika K Shetty, Sriya Sridhar
INTRODUCTION: Posterior Capsular Opacifications (PCO) is a frequent complication of cataract surgery following posterior chamber intraocular lens implantation. Nd -Yag laser capsulotomy is the treatment of choice for PCO and is known to be associated with complications like Raised Intraocular Pressure (IOP), Intraocular lens pitting, intraocular lens cracks, cystoid macular oedema, retinal detachment, corneal burns. Raised IOP is the most common complication and prescribing anti-glaucoma drugs post capsulotomy is a common practise...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203055/resident-surgeon-efficiency-in-femtosecond-laser-assisted-cataract-surgery
#6
Andrew C Pittner, Brian R Sullivan
PURPOSE: Comparison of resident surgeon performance efficiencies in femtosecond laser-assisted cataract surgery (FLACS) versus conventional phacoemulsification. PATIENTS AND METHODS: A retrospective cohort study was conducted on consecutive patients undergoing phacoemulsification cataract surgery performed by senior ophthalmology residents under the supervision of 1 attending physician during a 9-month period in a large Veterans Affairs medical center. Medical records were reviewed for demographic information, preoperative nucleus grade, femtosecond laser pretreatment, operative procedure times, total operating room times, and surgical complications...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28194486/-technical-principles-of-adaptive-optics-in-ophthalmology
#7
J L Reiniger, N Domdei, F G Holz, W M Harmening
During the last 25 years ophthalmic imaging has undergone a revolution. This review gives an overview of the possibilities of adaptive optics (AO) for ophthalmic imaging technologies and their development and illustrates that the role of ophthalmic imaging changed from the documentation of obvious abnormalities to the detection of microscopic yet significant conspicuities. This enables earlier and more precise diagnoses. The implementation of AO for imaging systems like fundus cameras, scanning laser ophthalmoscopy and optical coherence tomography has gained in importance...
February 13, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28185695/radiation-retinopathy-secondary-to-treatment-of-maxillary-sinus-carcinoma-a-dramatic-case
#8
J Galindo-Bocero, S Macías-Franco, S Sánchez-García, M Fonollá-Gil, A García-Alonso
CLINICAL CASE: A 53-year old male presented with visual impairment in right eye after irradiation of right maxillary sinus carcinoma. Funduscopy shows radiation retinopathy: haemorrhages, exudates, macular oedema, and peripheral retinal ischaemia. A poor outcome was achieved despite laser treatment and intravitreal injections of bevacizumab, resulting in evisceration of the affected eye. DISCUSSION: Radiation retinopathy must be considered in any loss of vision after head and neck irradiation...
February 6, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28163860/refinement-of-intraocular-pressure-measurements-made-by-ocular-response-analyzer-following-laser-in-situ-keratomileusis-using-m2-90-moria-microkeratome-for-egyptian-myopic-and-astigmatic-patients
#9
Tamer Adel Refai, Olfat A Hassanin
INTRODUCTION: The Goldmann applanation tonometer readings were noted to be markedly reduced after Lasik surgery using a thin flap technique which is widely used nowadays, to correct a wide range of myopia and astigmatism. The Ocular Response Analyzer (ORA) is considered one of the important tools for refinement of Intraocular Pressure (IOP) measurements. The aim of this study is to evaluate and refine ORA measurements for IOP changes post- M2 90 Moria microkeratome Lasik procedure for Egyptian myopic and astigmatic patients trying to aid in glaucoma diagnosis and management...
December 2016: Electronic Physician
https://www.readbyqxmd.com/read/28145971/subthreshold-laser-treatment-for-serous-retinal-detachment-in-dome-shaped-macula-associated-with-pathologic-myopia
#10
Maurizio Battaglia Parodi, Pierluigi Iacono, Francesco Bandello
PURPOSE: To evaluate the effects of the subthreshold laser treatment as a therapeutic option in the treatment of serous retinal detachment secondary to dome-shaped macula. METHODS: Prospective pilot study with 12-month follow-up. Each patient underwent a complete ophthalmologic examination, including best-corrected visual acuity, fluorescein angiography, indocyanine green angiography, and spectral domain optical coherence tomography. Eyes with persistent serous retinal detachment lasting for a minimum of 12 months and absence of best-corrected visual acuity improvement underwent subthreshold laser treatment in a single session...
January 31, 2017: Retina
https://www.readbyqxmd.com/read/28135747/-flexible-guidance-of-ultra-short-laser-pulses-in-ophthalmic-therapy-systems
#11
J Blum, M Blum, M S Rill, J Haueisen
In the last 20 years, the role of ultrashort pulsed lasers in ophthalmology has become increasingly important. However, it is still impossible to guide ultra-short laser pulses with standard glass fibres. The highly energetic femtosecond pulses would destroy the fibre material, and non-linear dispersion effects would significantly change beam parameters. In contrast, photonic crystal fibres mainly guide the laser pulses in air, so that absorption and dispersive pulse broadening have essentially no effect. This article compares classical beam guidance with mirrors, lenses and prisms with photonic crystal fibres and describes the underlying concepts and the current state of technology...
January 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28114695/-functional-results-and-graft-failure-after-repeat-keratoplasty
#12
S Blug, B Seitz, A Langenbucher, N Szentmáry
Background and Purpose Keratoplasty is the oldest and most successful transplantation method in man. Despite the immunological privilege of the cornea, the graft fails in up to 10 % of patients, depending on corneal disease, quality of donor tissue and patient compliance, and repeat keratoplasty may then be necessary. The aim of this study was to verify factors which affect the functional result and graft survival after repeat keratoplasty. Patients and Methods In this single centre, consecutive retrospective case series, patients were included who were treated at Department of Ophthalmology, Saarland University Medical Centre with repeat keratoplasty between January 1st 2001 and December 31st 2010...
January 23, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28094044/diagnosis-and-treatment-of-acute-retinal-necrosis-a-report-by-the-american-academy-of-ophthalmology
#13
Scott D Schoenberger, Stephen J Kim, Jennifer E Thorne, Prithvi Mruthyunjaya, Steven Yeh, Sophie J Bakri, Justis P Ehlers
PURPOSE: To evaluate the available evidence in peer-reviewed publications about the diagnosis and treatment of acute retinal necrosis (ARN). METHODS: Literature searches of the PubMed and Cochrane Library databases were last conducted on July 27, 2016. The searches identified 216 unique citations, and 49 articles of possible clinical relevance were reviewed in full text. Of these 49 articles, 27 were deemed sufficiently relevant or of interest, and they were rated according to strength of evidence...
January 13, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28073426/the-prevention-and-treatment-of-retinal-complications-in-diabetes
#14
Susanne Gabriele Schorr, Hans-Peter Hammes, Ulrich Alfons Müller, Heinz-Harald Abholz, Rüdiger Landgraf, Bernd Bertram
BACKGROUND: Microvascular complications of diabetes mellitus can cause retino pathy and maculopathy, which can irreversibly damage vision and lead to blindness. The prevalence of retinopathy is 9-16% in patients with type 2 diabetes and 24-27% in patients with type 1 diabetes. 0.2-0.5% of diabetics are blind. METHODS: The National Disease Management Guideline on the prevention and treatment of retinal complications in diabetes was updated according to recommendations developed by seven scientific medical societies and organizations and by patient representatives and then approved in a formal consensus process...
December 2, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28060395/design-and-validation-of-a-training-simulator-for-laser-capsulotomy-peripheral-iridotomy-and-retinopexy
#15
Sarah M Simpson, Kelly D Schweitzer, Davin E Johnson
BACKGROUND AND OBJECTIVES: Ophthalmology trainees commonly learn laser procedures on live patients. A simulator for learning peripheral iridotomy (PI), posterior capsulotomy, and retinopexy may improve patient outcomes. MATERIALS AND METHODS: A model eye with artificial tissues was designed. The tissues reacted to laser similarly to human tissues. Inexperienced (n = 6; first- to third-year residents) and experienced (n = 7; fourth- to fifth-year residents and staff) ophthalmic personal were compared on performance of the above laser procedures...
January 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28058165/evaluation-of-follow-up-and-treatment-results-in-coats-disease
#16
Zafer Cebeci, Şerife Bayraktar, Yusuf Cem Yılmaz, Samuray Tuncer, Nur Kır
OBJECTIVES: The aim of this study was to evaluate the clinical features, follow-up and treatment results of patients diagnosed with Coats' disease. MATERIALS AND METHODS: Medical records of 27 patients diagnosed with Coats' disease in our clinic were reviewed retrospectively. All patients underwent complete ophthalmological examination and fundus photography was taken. Disease stage and treatment methods used were recorded. RESULTS: Twenty-seven eyes of 27 patients were included in the study...
October 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28057646/incidence-mechanism-and-outcomes-of-schisis-retinal-detachments-revealed-through-a-prospective-population-based-study
#17
Kanmin Xue, Mahiul M K Muqit, Eric Ezra, Stephen J Charles, David Yorston, Arijit Mitra, Chetan K Patel
AIM: To determine the incidence, presentation and outcomes of progressive sight-threatening retinal detachment (RD) complicating degenerative retinoschisis. METHODS: We conducted the first prospective population-based epidemiological study of progressive schisis detachment over a 1-year period (2014-2015) in the UK. Case ascertainment was via monthly British Ophthalmological Surveillance Unit reporting cards sent to all ophthalmologists in the UK. For each reported case, data were collected using incident and 6 months follow-up questionnaires gathering information including demographic, presenting symptoms, retinal findings, primary management, primary outcome, secondary management and secondary outcome...
January 5, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28007112/short-term-complications-of-femtosecond-laser-assisted-laser-in-situ-keratomileusis-cuts-review-of-1210-consecutive-cases
#18
Thomas Kohnen, Luisa Schwarz, Matthias Remy, Mehdi Shajari
PURPOSE: To evaluate short-term complications after femtosecond laser cuts for laser in situ keratomileusis (LASIK). SETTING: Department of Ophthalmology, Goethe University, Frankfurt, Germany. DESIGN: Retrospective consecutive case series. METHODS: Consecutive femtosecond laser cuts (1210 cuts in 624 patients) from LASIK performed with the Intralase FS60 between 2006 and 2014 were analyzed. The analysis looked at intraoperative and postoperative complications at 1 day, 1 week, and 1 month and factors with potential impact on the complication rate, such as ablation depth...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27956293/immunohistochemical-study-of-corneal-inflammation-after-femtosecond-laser-clear-corneal-incisions-or-manual-surgery
#19
Lisa Toto, Claudia Curcio, Alessandra Mastropasqua, Peter A Mattei, Erminia D'Ugo, Chiara De Nicola, Leonardo Mastropasqua
PURPOSE: To use immunohistochemical staining to evaluate corneal inflammation and apoptosis induced after femtosecond laser incisions or manual incisions. SETTING: Ophthalmology Clinic, University G. d'Annunzio, Chieti, Italy. DESIGN: Experimental study. METHODS: Ninety human cadaver corneas were cut manually or with the femtosecond laser at different energies and analyzed by immunohistochemistry after 5 minutes or 4 hours...
November 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27937751/failure-to-integrate-quantitative-measurement-methods-of-ocular-inflammation-hampers-clinical-practice-and-trials-on-new-therapies-for-posterior-uveitis
#20
Carl P Herbort, Ilknur Tugal-Tutkun, Piergiorgio Neri, Carlos Pavésio, Sumru Onal, Phuc LeHoang
Uveitis is one of the fields in ophthalmology where a tremendous evolution took place in the past 25 years. Not only did we gain access to more efficient, more targeted, and better tolerated therapies, but also in parallel precise and quantitative measurement methods developed allowing the clinician to evaluate these therapies and adjust therapeutic intervention with a high degree of precision. Objective and quantitative measurement of the global level of intraocular inflammation became possible for most inflammatory diseases with direct or spill-over anterior chamber inflammation, thanks to laser flare photometry...
December 12, 2016: Journal of Ocular Pharmacology and Therapeutics
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