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laser in ophthalmology

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https://www.readbyqxmd.com/read/29155795/in-vivo-imaging-of-cx3cr1gfp-gfp-reporter-mice-with-spectral-domain-optical-coherence-tomography-and-scanning-laser-ophthalmoscopy
#1
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
#2
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
#3
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
#4
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: J Intensive Care Soc
https://www.readbyqxmd.com/read/29026283/outcomes-study-between-femtosecond-laser-assisted-cataract-surgery-and-conventional-phacoemulsification-surgery-using-an-active-fluidics-system
#5
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
#6
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
#7
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 25, 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
#8
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
https://www.readbyqxmd.com/read/28919773/sickle-cell-retinopathy-improving-care-with-a-multidisciplinary-approach
#9
REVIEW
Farid Menaa, Barkat Ali Khan, Bushra Uzair, Abder Menaa
Sickle cell retinopathy (SCR) is the most representative ophthalmologic complication of sickle cell disease (SCD), a hemoglobinopathy affecting both adults and children. SCR presents a wide spectrum of manifestations and may even lead to irreversible vision loss if not properly diagnosed and treated at the earliest. Over the past decade, multidisciplinary research developments have focused upon systemic, genetic, and ocular risk factors of SCR, enabling the clinician to better diagnose and manage these patients...
2017: Journal of Multidisciplinary Healthcare
https://www.readbyqxmd.com/read/28917415/bilateral-corneal-epithelial-macrocysts-following-hyperopic-laser-in-situ-keratomileusis
#10
Mahmoud O Jaroudi, Carole G Cherfan, Shady T Awwad
A 27-year-old woman had microkeratome-assisted laser in situ keratomileusis (LASIK) for moderate bilateral hyperopia. The preoperative ophthalmologic examination was unremarkable except for minimal lissamine green staining bilaterally on the nasal conjunctiva. On the first postoperative day, the uncorrected distance visual acuity (UDVA) was 20/20 bilaterally and the corneas were clear. Four days later, the patient presented with mild blur in both eyes. Examination showed diffuse bilateral epithelial cysts encompassing the central 6...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28895636/-minimally-invasive-therapy-of-lacrimal-drainage-system-stenosis
#11
Georgia Avgitidou, Konrad R Koch, Ludwig M Heindl
Epiphora is one of the most common symptoms for clinical ophthalmological consultation. This symptom is mostly caused by stenosis of the lacrimal drainage system. Over a century, external dacryocystostomy according to Toti was the treatment of choice. Today, new very encouraging minimally invasive techniques for recanalisation of the lacrimal drainage system, such as microdrilldacryoplasty or laserdacryoplasty, as well as bypass-based techniques, such as transcanalicular laser-assisted dacryocystorhinostomy, become more important in the treatment of dacryostenosis...
September 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28881146/health-economic-evaluation-of-fluocinolone-acetonide-190%C3%A2-%C3%A2%C2%B5g-implant-in-people-with-diabetic-macular-edema
#12
Sarah E Holden, Craig J Currie, David R Owens
OBJECTIVES: To assess healthcare resource use and costs of treating people with clinically significant diabetic macular edema (DME) with fluocinolone acetonide (FAc) 190 µg intravitreal implant in routine clinical practice. METHODS: The retrospective Iluvien Clinical Evidence (ICE-UK) study collected data on people prescribed the FAc implant in any one of 13 ophthalmology centers between April 1, 2013 and April 15, 2015. Data were collected for 12 months before and after implantation...
October 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28837739/animal-model-for-retinopathy-of-prematurity-laser-surgery-training
#13
W Walker Motley, Dema M Atoum
Peripheral retinal laser ablation for high-risk retinopathy of prematurity (ROP) improves visual outcomes. Some pediatric ophthalmology fellows receive little exposure to this procedure. The authors identified and evaluated an animal teaching model that simulates peripheral retinal laser ablation in human infants with ROP. [J Pediatr Ophthalmol Strabismus. 2017;54:e47-e49.].
August 24, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28820152/back-pain-in-ophthalmology-national-survey-of-indian-ophthalmologists
#14
Ramesh Venkatesh, Sumit Kumar
PURPOSE: The aim is to assess the prevalence, severity, and associations of back pain among Indian ophthalmologists. METHODS: A self-reporting questionnaire was sent to ophthalmologists with valid e-mail addresses registered with the All India Ophthalmological Society. The survey was open for responses for 2 months. RESULTS: A total of 651 (5.96%) responses were obtained; 394 (61%) males and 257 (39%) females. Half (50%) of responses were obtained from doctors belonging to 31-40 years' age group...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28808774/-refractive-lenticule-extraction-the-relex-smile-technique-video-article
#15
REVIEW
M Blum, W Sekundo
Refractive lenticule extraction (ReLEx/SMILE) is a refractive surgical method developed by the authors in stages primarily for correction of myopia and myopic astigmatism, in which a femtosecond laser is exclusively used. In the (ReLEx/SMILE) method a refractive lenticule is generated by the femtosecond laser, which is subsequently extracted through a small incision. Opening of the corneal surface with a flap and use of an excimer laser is no longer necessary. In 2013 the method was newly assessed and classified by the Joint Commisssion for Refractive Surgery (KRC) of the Professional Association of Ophthalmologists (BVA) and the German Ophthalmological Society (DOG)...
September 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28774511/resident-performed-neodymium-yag-laser-posterior-capsulotomy
#16
Khalil Ghasemi Falavarjani, Mohammadreza Aghamirsalim, Kaveh Abri Aghdam
OBJECTIVE: To investigate the outcomes of resident-performed Nd:YAG laser posterior capsulotomy. DESIGN: Combined retrospective and prospective study. PARTICIPANTS: Patients (N = 301) who underwent Nd:YAG capsulotomy by ophthalmology residents at Rassoul Akram Hospital, Tehran, Iran. METHODS: Assessment of visual outcomes and complications and the results of second- and third-year residents. RESULTS: In the retrospective arm, 131 eyes of 129 patients were enrolled...
August 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28727887/yag-laser-vitreolysis-vs-sham-yag-vitreolysis-for-symptomatic-vitreous-floaters-a-randomized-clinical-trial
#17
RANDOMIZED CONTROLLED TRIAL
Chirag P Shah, Jeffrey S Heier
Importance: Vitreous floaters are common and can worsen visual quality. YAG vitreolysis is an untested treatment for floaters. Objective: To evaluate YAG laser vitreolysis vs sham vitreolysis for symptomatic Weiss ring floaters from posterior vitreous detachment. Design, Setting, and Participants: This single-center, masked, sham-controlled randomized clinical trial was performed from March 25, 2015, to August 3, 2016, in 52 eyes of 52 patients (36 cases and 16 controls) treated at a private ophthalmology practice...
September 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28683479/-diagnostic-precision-of-the-confocal-scanning-laser-ophthalmoscopy-in-the-large-optic-disc-with-physiological-excavation-a-long-term-study
#18
Eva Charlotte Koch, Niklas Plange, Matthias Fuest, Hannah Schimitzek, David Kuerten
We repeatedly examined 17 subjects with presumed bilateral physiological excavation labeled as pathological and/or borderline via HRT to verify the diagnosis of physiological cupping or to monitor the long-term progression into normal tension glaucoma. Patients and Methods 17 Subjects with presumed bilateral physiological cupping and large optic discs were included in this long-term follow-up study. All subjects underwent regular detailed ophthalmologic examinations, including intraocular pressure measurement via Goldmann applanation tonometry (GAT), retinal nerve fiber layer imaging via optical coherence tonometry (OCT) and visual field testing and optic disc imaging using the HRT...
July 6, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28674857/an-uncommon-case-of-intermittent-pourfour-du-petit-syndrome-associated-with-acute-angle-closure-glaucoma-successfully-treated-by-laser-iridotomy
#19
Roberta Farci, Pietro Emanuele Napoli, Maurizio Fossarello
PURPOSE: To describe a case of acute angle-closure glaucoma secondary to intermittent mydriasis related to Pourfour du Petit Syndrome caused by tracheal deviation. MATERIALS AND METHODS: A 70-year-old Caucasian woman visited the Emergency Room of the University Eye Clinic complaining of blurring of vision and difficulty to move superior eyelid in her right eye. Examination revealed reactive mydriasis, and upper lid retraction on the right side. The rest of the ophthalmological examination was normal, and a cranial computed tomography (CT) did not identify any abnormalities...
July 3, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28663853/review-of-intraoperative-optical-coherence-tomography-technology-and-applications-invited
#20
Oscar M Carrasco-Zevallos, Christian Viehland, Brenton Keller, Mark Draelos, Anthony N Kuo, Cynthia A Toth, Joseph A Izatt
During microsurgery, en face imaging of the surgical field through the operating microscope limits the surgeon's depth perception and visualization of instruments and sub-surface anatomy. Surgical procedures outside microsurgery, such as breast tumor resections, may also benefit from visualization of the sub-surface tissue structures. The widespread clinical adoption of optical coherence tomography (OCT) in ophthalmology and its growing prominence in other fields, such as cancer imaging, has motivated the development of intraoperative OCT for real-time tomographic visualization of surgical interventions...
March 1, 2017: Biomedical Optics Express
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