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laser in ophthalmology

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https://www.readbyqxmd.com/read/29335102/comparison-of-2-laser-fragmentation-patterns-used-in-femtosecond-laser-assisted-cataract-surgery
#1
Mehdi Shajari, Sherin Khalil, Wolfgang J Mayer, Ghada Al-Khateeb, Myriam Böhm, Kerstin Petermann, Eva Hemkeppler, Thomas Kohnen
PURPOSE: To evaluate the effect of fragmentation patterns (pie pattern versus grid pattern) on effective phacoemulsification time (EPT). SETTING: Department of Ophthalmology, Goethe University, Frankfurt am Main, Germany. DESIGN: Retrospective case series. METHODS: Eyes that had femtosecond laser-assisted cataract surgery were included. One half of the group was treated with the pie pattern. The preoperative lens density was evaluated by Scheimpflug imaging (Pentacam)...
December 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29335100/risk-factors-for-and-management-of-pupillary-intraocular-lens-capture-after-intraocular-lens-transscleral-fixation
#2
Se Rang Choi, Ji Hoon Jeon, Joon Won Kang, Jang Won Heo
PURPOSE: To analyze risk factors and management of pupillary intraocular lens (IOL) capture after IOL transscleral fixation. SETTING: Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea. DESIGN: Retrospective case series. METHODS: A chart review was performed of patients who had transscleral fixation of IOLs between January 1, 2012, and December 31, 2013. Eyes were divided into 2 groups depending on whether the IOL was pupillary captured...
December 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29304271/blau-jabs-syndrome-in-a-tertiary-ophthalmologic-center
#3
Heloisa Nascimento, Jacqueline M Sousa, Délia González Fernández, Gustavo H A Salomão, Elcio H Sato, Cristina Muccioli, Rubens Belfort
In a prospective case series of patients with Blau-Jabs syndrome (BJS) conducted in the Ophthalmology Department/Federal University of Sao Paulo, seven patients with clinical and ophthalmologic manifestations of the disease and a positive genetic test result for the presence of a mutation in the CARD15/NOD2 gene were followed for a minimal period of 1 year. All patients had uveitis, five had nummular corneal subepithelial opacities, and four had multifocal choroiditis. Oral prednisolone was administered to all patients; inflammation was controlled in six patients with at least one immunosuppressive drug...
January 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29290462/-retinal-hemangioblastoma-treatment-strategy-and-long-term-follow-up-in-a-retrospective-cohort
#4
A Lefevre, T Mathis, P Denis, L Kodjikian
INTRODUCTION: Retinal hemangioblastoma (RH) is a benign vascular tumor frequently associated with Von Hippel-Lindau disease (VHL). Tumor growth of RH may lead to deterioration of visual acuity, which can be difficult to treat. Early diagnosis may reduce complication rate and side effects of treatment. The present retrospective study evaluates the long-term follow-up and complications of RH treatment as a function of the therapeutic strategy used. MATERIALS AND METHODS: The study included patients with RH, followed at Croix Rousse university hospital, Lyon between 2010 and 2017...
December 28, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29243035/systemic-lupus-erythematosus-and-ocular-involvement-an-overview
#5
REVIEW
Rosanna Dammacco
Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease of undefined etiology and with remarkably heterogeneous clinical features. Virtually any organ system can be affected, including the eye. SLE-related eye involvement can be diagnosed in approximately one-third of the patients and is usually indicative of disease activity. An early diagnosis and the adoption of suitable therapeutic measures are necessary to prevent sight-threatening consequences, especially in patients with juvenile SLE. Periocular lesions, such as eyelid involvement and orbital inflammation, are relatively rare and, in case of orbital masses, may require a biopsy control...
December 14, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29210827/demarcation-line-in-the-human-cornea-after-surface-ablation-observed-by-optical-coherence-tomography-and-confocal-microscopy
#6
Meiyan Li, Yu Zhao, Qirui Xiao, Peijun Yao, Mingzi Piao, Ling Sun, Xingtao Zhou
PURPOSE: To investigate the long-term changes in anterior corneal structure after surface ablation. METHODS: In this retrospective study, patients who received surface ablation including laser-assisted subepithelial keratomileusis (LASEK) and epipolis laser in situ keratomileusis at the Department of Ophthalmology of Fudan University Eye and Ear, Nose and Throat (EENT) Hospital (Shanghai, People's Republic of China) were telephoned. Patients were asked to follow-up at the refractive center...
November 28, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29204993/update-on-the-use-of-anti-vegf-intravitreal-therapies-for-retinal-vein-occlusions
#7
REVIEW
Yi Jiang, William F Mieler
The use of anti-vascular endothelial growth factor (VEGF) therapy in ophthalmology has profoundly changed our management and treatment of conditions such as cystoid macular edema, diabetic macular edema, choroidal neovascularization, and other proliferative retinopathies. Although initially used for the treatment of choroidal neovascularization in neovascular age-related macular degeneration, their application has spread rapidly for other indications as their outcomes have often outperformed previously existing treatments...
November 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/29190247/efficacy-of-double-dose-photodynamic-therapy-for-circumscribed-choroidal-hemangioma
#8
Ji Hwan Lee, Christopher Seungkyu Lee, Sung Chul Lee
PURPOSE: To evaluate the efficacy of photodynamic therapy using a double dose of verteporfin for patients with circumscribed choroidal hemangioma. METHODS: This retrospective comparative case series evaluated data from 10 patients who were treated using double dose photodynamic therapy (12 mg/m) and seven patients who were treated using the standard dose (6 mg/m). A laser was applied with a radiant exposure of 50 J/cm. The ophthalmologic examinations were performed at baseline and 1 year after the treatment and included best-corrected visual acuity, slit-lamp biomicroscopy, fundus examination, spectral domain optical coherence tomography, and B-scan ultrasonography...
November 22, 2017: Retina
https://www.readbyqxmd.com/read/29190245/characterization-and-correlation-of-jampol-dots-on-adaptive-optics-with-foveal-granularity-on-conventional-fundus-imaging
#9
Alex C Onishi, Philipp K Roberts, Lee M Jampol, Peter L Nesper, Amani A Fawzi
PURPOSE: To describe features characteristic of multiple evanescent white dot syndrome (MEWDS) using adaptive optics scanning laser ophthalmoscopy (AOSLO). METHODS: Six women (seven eyes) who presented with MEWDS between June 2014 and April 2017 underwent ophthalmologic examinations and multimodal imaging including infrared, AOSLO, and spectral domain optical coherence tomography. RESULTS: Bright hyperreflective lesions on AOSLO throughout the course of MEWDS could be correlated to the hyperreflective dots of foveal granularity on infrared imaging without apparent corresponding changes on spectral domain optical coherence tomography...
November 22, 2017: Retina
https://www.readbyqxmd.com/read/29188116/multimodal-nonlinear-optical-imaging-of-unstained-retinas-in-the-epi-direction-with-a-sub-40-fs-yb-fiber-laser
#10
Gabrielle A Murashova, Christopher A Mancuso, Jacob L Canfield, Sanae Sakami, Krzysztof Palczewski, Grazyna Palczewska, Marcos Dantus
Ultrafast lasers have potential use in ophthalmology for diagnoses through non-invasive imaging as well as for surgical therapies or for evaluating pharmacological therapies. New ultrafast laser sources, operating at 1.07 μm and sub-40 fs pulse durations, offer exciting possibilities in multiphoton imagining of the retina as the bulk of the eye is relatively transparent to this wavelength, three-photon excitation is not absorbed by DNA, and this wavelength has a greater penetration depth compared to the commonly used 800 nm Ti:Sapphire laser...
November 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/29185403/effect-of-femtosecond-laser-assisted-cataract-surgery-flacs-on-endothelial-cell-count
#11
Muhammad Saim Khan, Asad Habib, Mazhar Ishaq, Muhammad Amer Yaqub
OBJECTIVE: To compare the change in endothelial cell count after femtosecond laser-assisted cataract surgery (FLACS) versus conventional phacoemulsification. STUDY DESIGN: Randomized controlled clinical trial. PLACE AND DURATION OF STUDY: Armed Forces Institute of Ophthalmology, Rawalpindi, Pakistan from January 2016 to August 2017. METHODOLOGY: Patients with senile cataract and age ranging from 40 to 80 years were included in the study...
December 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29165418/-corneal-transparency-anatomical-basis-and-evaluation-methods
#12
S E Avetisov, M N Narbut
Being just a relatively small part of the fibrous tunic of the eyeball, the cornea is, nevertheless, unique in terms of the variety of its functions. Because the cornea differs significantly from other protective frames in its structure, it provides the possibility of light transmission and strong refraction that largely contributes to the total refraction of the eye. The development of ophthalmology is impossible without improving methods of adequate anatomical and functional assessment of the eye not only as a whole, but also as a collection of interacting structures...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/29155795/in-vivo-imaging-of-cx3cr1gfp-gfp-reporter-mice-with-spectral-domain-optical-coherence-tomography-and-scanning-laser-ophthalmoscopy
#13
Despina Kokona, Joël Jovanovic, Andreas Ebneter, Martin S Zinkernagel
Spectral domain optical coherence tomography (SD-OCT) and scanning laser ophthalmoscopy (SLO) are extensively used in experimental ophthalmology. In the present protocol, mice expressing green fluorescent protein (gfp) under the promoter of Cx3cr1 (BALB/c-Cx3cr1(gfp/gfp)) were used to image microglia cells in vivo in the retina. Microglia are resident macrophages of the retina and have been implicated in several retinal diseases(1)(,)(2)(,)(3)(,)(4)(,)(5)(,)(6). This protocol provides a detailed approach for generation of retinal B-scans, with SD-OCT, and imaging of microglia cell distribution in Cx3cr1(gfp/gfp) mice with SLO in vivo, using an ophthalmic imaging platform system...
November 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29120720/advanced-cataract-learning-experience-in-united-states-ophthalmology-residency-programs
#14
Adam J Yen, Saras Ramanathan
This study examined resident exposure to and competency in new techniques for cataract removal and intraocular lens (IOL) implantation. A questionnaire was sent to 116 United States ophthalmology program directors and completed by 71. In response to the questionnaire, program directors reported that 95.3% of their graduating seniors were competent to select and implant toric IOLs and 52.3% were competent to implant capsular tension rings (CTRs). Divide and conquer (56.6%) and stop and chop (25.4%) dominated phacoemulsification teaching...
October 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29120718/wound-healing-in-rabbit-corneas-after-flapless-refractive-lenticule-extraction-with-a-345%C3%A2-nm-ultraviolet-femtosecond-laser
#15
Christian M Hammer, Corinna Petsch, Jörg Klenke, Katrin Skerl, Christian Wüllner, Christof Donitzky, Friedrich Paulsen, Michael Scholz, Theo Seiler, Friedrich E Kruse, Johannes Menzel-Severing
PURPOSE: To characterize corneal wound healing in a rabbit model after flapless refractive lenticule extraction with a 345 nm ultraviolet femtosecond laser. SETTING: Departments of Ophthalmology and Anatomy II, University of Erlangen-Nürnberg and Wavelight GmbH, Erlangen, Germany. DESIGN: Experimental study. METHODS: Flapless refractive lenticule extraction was performed in 1 eye each of 20 New Zealand white rabbits (-5...
October 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29118839/acute-angle-closure-glaucoma-a-potential-blind-spot-in-critical-care
#16
Anna Petsas, George Chapman, Richard Stewart
We report a case of a 69-year-old gentleman who developed an acutely painful eye with loss of visual acuity whilst on the critical care unit. He was admitted three days previously with an infective exacerbation of chronic obstructive pulmonary disease requiring invasive mechanical ventilation. In addition, he received intravenous antibiotics, steroids, nebulised bronchodilators and intravenous aminophylline, together with noradrenaline for blood pressure support. On development of visual symptoms, an emergency ophthalmology review diagnosed acute angle closure glaucoma...
August 2017: Journal of the Intensive Care Society
https://www.readbyqxmd.com/read/29026283/outcomes-study-between-femtosecond-laser-assisted-cataract-surgery-and-conventional-phacoemulsification-surgery-using-an-active-fluidics-system
#17
Wilson Takashi Hida, Patrick Frenzel Tzelikis, César Vilar, Mario Augusto Pereira Dias Chaves, Antônio Francisco Pimenta Motta, Pedro Carlos Carricondo, Bruna Vieira Ventura, Renato Ambrosio, Walton Nosé, Milton Ruiz Alves
PURPOSE: The purpose of this study was to compare intraoperative parameters between femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification using Centurion(®) Vision System with Active Fluidics. SETTING: This study was performed at Brasília Ophthalmologic Hospital, Brasília, Federal District, Brazil. PATIENTS AND METHODS: This was a prospective randomized comparative study. Patients with the diagnosis of cataract and surgical extraction programmed were divided into two groups: conventional phacoemulsification and FLACS...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28992234/pharmacologic-management-of-diabetic-retinopathy
#18
Akiyoshi Uemura
Diabetic retinopathy (DR) is a leading cause of vision loss in working-age populations, primarily attributable to retinal vascular hyperpermeability, hypoperfusion, and neoangiogenesis. In the past decade, laser photocoagulation and surgical interventions to treat DR have been replaced by topical administrations of anti-vascular endothelial growth factor drugs and corticosteroids. Although these drugs have revolutionized clinical management of DR, their limited efficacy and adverse effects have raised an increasing demand for new drug development...
September 6, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28958885/pathophysiology-screening-and-treatment-of-rop-a-multi-disciplinary-perspective
#19
REVIEW
Tailoi Chan-Ling, Glen A Gole, Graham E Quinn, Samuel J Adamson, Brian A Darlow
The population of infants at risk for retinopathy of prematurity (ROP) varies by world region; in countries with well developed neonatal intensive care services, the highest risk infants are those born at less than 28 weeks gestational age (GA) and less than 1 kg at birth, while, in regions where many aspects of neonatal intensive and ophthalmological care are not routinely available, more mature infants up to 2000 g at birth and 37 weeks GA are also at risk for severe ROP. Treatment options for both groups of patients include standard retinal laser photocoagulation or, more recently, intravitreal anti-VEGF drugs...
September 27, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28931298/-selective-laser-trabeculoplasty-implication-for-medicament-glaucoma-treatment-interruption-in-pregnant-and-breastfeeding-women
#20
P Výborný, S Sičáková, Z Flórová, I Sováková
During the period of the last six years (2010-2016), the authors performed Selective Laser Trabeculoplasty (SLT) in 32 women (64 eyes); pregnant women patients with primary open angle glaucoma were referred to the Department of Ophthalmology, First Medical Faculty, Charles University, and Central Military Hospital in Prague, Czech Republic, European Union, to perform this procedure with the goal to interrupt their antiglaucomatic treatment by means of eye drops during the pregnancy and the breastfeeding period...
2017: Ceská a Slovenská Oftalmologie
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