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https://www.readbyqxmd.com/read/29453222/clear-lens-extraction-for-the-management-of-primary-angle-closure-glaucoma-surgical-technique-and-refractive-outcomes-in-the-eagle-cohort
#1
Alexander C Day, David Cooper, Jennifer Burr, Paul J Foster, David S Friedman, Gus Gazzard, Jemaima Che-Hamzah, Tin Aung, Craig R Ramsay, Augusto Azuara-Blanco
BACKGROUND: To describe the surgical technique and refractive outcomes following clear lens extraction (CLE) in the Effectiveness, in Angle-closure Glaucoma, of Lens Extraction trial. METHODS: Review of prospectively collected data from a multicentre, randomised controlled trial comparing CLE and laser peripheral iridotomy. Eligible participants were ≥50 years old and newly diagnosed with (1) primary angle closure (PAC) with intraocular pressure above 30 mm Hg or (2) PAC glaucoma...
February 16, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29450654/visualizing-protoporphyrin-ix-formation-in-the-dura-tail-of-meningiomas-by-mass-spectrometry-imaging
#2
Benjamin Brokinkel, Sabrina Kröger, Volker Senner, Astrid Jeibmann, Uwe Karst, Walter Stummer
BACKGROUND: The advantages of 5-aminolevulinacid (5-ALA)-induced fluorescence-guided surgery in meningiomas are increasingly discussed. In this context, despite detectable tumor tissue in histopathologial analyses, no fluorescence was shown at the dura tail using the standard operating microscope. Thus, 5-ALA metabolism in this surgically important site remains unknown but needs to be elucidated when further evaluating indications of fluorescence-guided surgery in meningiomas. METHOD: We here present the spatially resolved identification of protoporphyrin IX (PpIX) in sphenoid ridge meningioma cryosections from a patient who underwent fluorescence-guided microsurgery using molecular imaging analysis by matrix-assisted laser desorption/ionization tandem mass spectrometry (MALDI-MS/MS)...
February 15, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29450384/plateau-iris-therapeutic-options-and-functional-results-after-treatment
#3
Crenguța Feraru, Andrei Bâlha, Victor Aursulesei, Andrei Filip, Anca Pantalon
We present the therapeutic options and functional results in patients with plateau iris (syndrome or configuration) in consecutive case series. Material and method: Our study included newly diagnosed patients with acute angle closure by "plateau iris" (configuration or syndrome), between June 2016 and April 2017. Series of 8 consecutive patients met the inclusion criteria, all being females. All the patients underwent an individualized treatment according to the underlying mechanism and evolution...
April 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29445713/effects-of-laser-physical-parameters-on-lesion-size-in-retinal-photocoagulation-surgery-clinical-oct-and-experimental-study
#4
A Soleimani, S H Rasta, T Banaei, A Asgharsharghi Bonab
Introduction: The aim of the present study was to determine burn intensity in retinal laser photocoagulation based on laser parameters; wavelength, power, beam size and pulse duration, using Optical Coherence Tomography (OCT), fundus camera, physical eye model and computer simulation in a clinical study. Materials and Methods: Participants were 10 adult patients between 50-80 years with proliferative diabetic retinopathy. A multicolor-photo coagulator with 532 nm green and 672 nm red for retina photocoagulation in diabetic retinopathy was used to investigate the participants...
December 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/29443360/swept-source-oct-angiography-of-full-thickness-macular-holes-appearance-and-artifacts
#5
Zofia Michalewska, Jerzy Nawrocki
BACKGROUND AND OBJECTIVE: To evaluate swept-source optical coherence tomography angiography (SS-OCTA) images in full-thickness macular holes (FTMHs). PATIENTS AND METHODS: SS-OCTA of FTMHs was performed before or after surgery. Vitrectomy with the temporal inverted internal limiting membrane flap technique was used. The authors measured the diameter and area of the foveal avascular zone (FAZ) in superficial and deep retina vasculature. RESULTS: In 88 patients, two artifact types were observed...
February 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29443358/microscope-integrated-intraoperative-ultrahigh-speed-swept-source-optical-coherence-tomography-for-widefield-retinal-and-anterior-segment-imaging
#6
Chen D Lu, Nadia K Waheed, Andre Witkin, Caroline R Baumal, Jonathan J Liu, Benjamin Potsaid, Anthony Joseph, Vijaysekhar Jayaraman, Alex Cable, Kinpui Chan, Jay S Duker, James G Fujimoto
BACKGROUND AND OBJECTIVE: To demonstrate the feasibility of retinal and anterior segment intraoperative widefield imaging using an ultrahigh-speed, swept-source optical coherence tomography (SS-OCT) surgical microscope attachment. PATIENTS AND METHODS: A prototype post-objective SS-OCT using a 1,050-nm wavelength, 400 kHz A-scan rate, vertical cavity surface-emitting laser (VCSEL) light source was integrated to a commercial ophthalmic surgical microscope after the objective...
February 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29436401/evaluation-of-a-hub-and-spoke-model-for-the-delivery-of-femtosecond-laser-assisted-cataract-surgery-within-the-context-of-a-large-randomised-controlled-trial
#7
Harry W Roberts, Vijay K Wagh, Isabella J M Mullens, Simone Borsci, Melody Z Ni, David P S O'Brart
AIMS: To test a hypothesis that cataract operating room (OR) productivity can be improved with a femtosecond laser (FL) using a hub-and-spoke model and whether any increase in productivity can offset additional costs relating to the FL. METHODS: 400 eyes of 400 patients were enrolled in a randomised-controlled trial comparing FL-assisted cataract surgery (FLACS) with conventional phacoemulsification surgery (CPS). 299 of 400 operations were performed on designated high-volume theatre lists (FLACS=134, CPS=165), where a hub-and-spoke FLACS model (1×FL, 2×ORs=2:1) was compared with independent CPS theatre lists...
February 7, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29434824/clinical-importance-of-chemokines-and-inflammatory-cytokines-for-patient-care-following-percutaneous-nephrolithotripsy
#8
Junrong Wang, Wei Wang, Wei Guo, Yanru Ma, Tianhui Ji, Baodi Zhang
Chemokines are a class of proteins with low molecular weight that serve important roles in the progression of inflammation. Percutaneous nephrolithotripsy is a surgical technique in which lasers or ultrasound are utilized to break down and/or remove kidney stones. In order to ensure a full recovery following surgery, effective patient care and nursing are required. In the present study, a total of 348 patients with kidney stones were recruited and the clinical importance of chemokines and inflammatory cytokines for the nursing of patients during perioperative period was investigated...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434432/use-of-1070-nm-fiber-lasers-in-oral-surgery-preliminary-ex-vivo-study-with-fbg-temperature-monitoring
#9
Carlo Fornaini, Elisabetta Merigo, Federica Poli, Chiara Cavatorta, Jean-Paul Rocca, Stefano Selleri, Annamaria Cucinotta
Background and Aims: The aim of this ex vivo study was to demonstrate the performances of 1070 nm fiber lasers for the ablation of oral tissues through the evaluation of the histological modifications made by a blind pathologist and the measurement of the thermal elevation during laser irradiation by a sensor based on a fiber Bragg grating. Materials and Methods: The source used was a pulsed fiber laser emitting at 1070 nm, with 20 W maximum average output power and 100 ns fixed pulse duration...
December 31, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29434427/picosecond-laser-treatment-for-tattoos-and-benign-cutaneous-pigmented-lesions-secondary-publication
#10
REVIEW
Kenichiro Kasai
Background and aims: The selective removal of tattoos and benign cutaneous pigmented lesions with laser energy evolved rapidly with the development of the nanosecond-domain Q-switched laser (ns-laser). Recently, however, a series of picosecond-domain lasers (ps-lasers) with pulsewidths less than 1 ns has become commercially available, enabling more efficient and faster removal of pigmented lesions in the field of dermatologic laser surgery. Rationale behind the ps-laser: The efficacy of the ns-laser depended on the theory of selective photothermolysis, whereby an extremely short pulse width was delivered less than the thermal relaxation time (TRT) of a target...
December 31, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29430969/retrospective-analysis-of-short-term-outcomes-after-monopolar-versus-laser-endoscopic-enucleation-of-the-prostate-a-single-center-experience
#11
Dmitry Victorovich Enikeev, Petr Vitalievich Glybochko, Zhamshid Okhunov, Yuriy Gennadievich Alyaev, Leonid Mikhailovich Rapoport, Dmitry Tsarichenko, Mikhail Elikovich Enikeev, Nikolay Ivanovich Sorokin, Alim Mukhamedovich Dymov, Mark Sergeevich Taratkin
INTRODUCTION: Endoscopic enucleation of the prostate (EEP) has been recognized as a viable, treatment modality for men with benign prostatic hyperplasia (BPH). The aim of our study was to compare the efficacy and functional outcomes of three different techniques of EEP including monopolar enucleation (MEP), holmium (HoLEP) and thulium laser enucleation (ThuLEP). METHODS: The study consisted of a retrospective comparison of pre- and postoperative parameters in men undergoing three types of EEP: MEP, HoLEP, and ThuLEP...
February 12, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29429414/rapidly-progressive-neovascular-glaucoma-following-coronary-artery-bypass-graft-surgery-in-a-patient-with-type-1-diabetes-mellitus-a-case-report
#12
Vasant Raman, Rosemary Lambley
BACKGROUND: Proliferative diabetic retinopathy leading to vitreous hemorrhage, tractional retinal detachment, and neovascular glaucoma is a major cause of severe sight impairment in adults of working age worldwide. Neovascular glaucoma occurs in 2.5% of patients with proliferative diabetic retinopathy, which is difficult to treat and often leads to blindness. Onset of neovascular glaucoma with rapid progression to blindness within a few weeks of a successful coronary artery bypass graft procedure is not known with this clinical entity...
February 12, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29429293/-deep-anterior-lamellar-keratoplasty-combined-with-antiviral-therapy-in-the-treatment-of-severe-herpes-necrotizing-stromal-keratitis
#13
S X Li, J T Wang, Y Jiang, X Wang, W Y Shi
Objective: To evaluate the efficacy of modified deep lamellar keratoplasty (DLKP) combined with antiviral medications for severe herpes necrotizing stromal keratitis. Methods: Retrospective case series study. Modified DLKP was performed in combination with antiviral medications in fifty patients (50 eyes) with severe necrotizing stromal keratitis, which was unresponsive to systemic and topical antiviral treatment for 1 week, at Shandong Eye Hospital. Before surgery, the operated eyes were examined using slit-lamp microscopy...
February 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29429286/-study-on-the-change-of-optical-zone-after-femtosecond-laser-assisted-laser-in-situ-keratomileusis
#14
H Li, M Chen, L Tian, D W Li, Y S Peng, F F Zhang
Objective: To explore the change of optical zone after femtosecond laser assisted laser in sitn keratomileusis(FS-LASIK) so as to provide the reference for measurement and design of clinical optical zone. Methods: This retrospective case series study covers 41 eyes of 24 patients (7 males and 17 females, aged from 18 to 42 years old) with myopia and myopic astigmatism who have received FS-LASIK surgery at Corneal Refractive Department of Qingdao Eye Hospital and completed over 6 months of clinical follow-up...
January 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29429283/-advantages-and-disadvantages-of-femtosecond-laser-assisted-lasik-and-smile
#15
F J Zhang, M S Sun
With the development of excimer laser and femtosecond laser equipment, application of diversified and customized surgical decision in modern corneal refractive surgery has been an inevitable trend. However, how to make a personalized decision with an accurate surgical design to achieve better visual quality becomes the main focus in clinical applications. Small-incision lenticule extraction (SMILE) and femtosecond assisted laser in situ keratomileusis (FS-LASIK) have been commonly acknowledged as the mainstream of corneal refractive surgery for ametropia correction nowadays...
January 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29426447/selective-laser-trabeculoplasty-for-primary-open-angle-glaucoma-patients-younger-than-40-years
#16
Viney Gupta, Sarbani Ghosh, M Sujeeth, Sunil Chaudhary, Shikha Gupta, Abadh Kishore Chaurasia, Ramanjit Sihota, Amisha Gupta, Kulwant Singh Kapoor
OBJECTIVE: To evaluate the efficacy of selective laser trabeculoplasty (SLT) among patients with juvenile-onset primary open-angle glaucoma (JOAG). METHODS: Patients diagnosed with JOAG who were not controlled on medical therapy were offered a trial of SLT. The patients were followed up prospectively for 1, 3, 6, and 12 months postlaser to evaluate the efficacy of SLT as second-line therapy. Success was defined as an intraocular pressure (IOP) reduction of ≥20% at 12 months without the need for further medication, laser, or surgery...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29426445/evaluating-selective-laser-trabeculoplasty-versus-argon-laser-trabeculoplasty-in-pseudoexfoliation-glaucoma-patients
#17
Jin Soo A Song, Jayme Vianna, Lesya Shuba, Paul Rafuse, Marcelo Nicolela
OBJECTIVE: Laser trabeculoplasty effectively reduces intraocular pressure (IOP) in primary open angle glaucoma, with argon laser trabeculoplasty (ALT) and selective laser trabeculoplasty (SLT) showing equivalent outcomes. However, it is unclear which laser modality is more effective in pseudoexfoliation (PXE) glaucoma. This study aims to compare the effectiveness of ALT and SLT in PXE glaucoma. DESIGN: Retrospective cohort study. METHODS: A chart review evaluating patients diagnosed with PXE glaucoma and treated with laser trabeculoplasty from 2005-2015...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29426442/effect-of-femtosecond-laser-on-efficiency-of-cataract-surgery-in-public-setting
#18
Tarek Ibrahim, Phillip Goernert, Guillermo Rocha
OBJECTIVE: To determine the time needed to perform a femtosecond laser-assisted cataract surgery (FLACS) and its effect on the efficiency of cataract surgery flow in a Canadian public health centre. DESIGN: Retrospective chart review. PARTICIPANTS: Patients who had cataract surgery performed in the first 3 months of femtosecond laser (FSL) technology use were compared with patients who had conventional phacoemulsification in the 3 months before FSL installation at Brandon Regional Health Centre (Brandon, Man...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29426244/ideal-characteristics-of-a-laser-protected-endotracheal-tube-abea-and-ahns-member-survey-and-biomechanical-testing
#19
Aaron D Friedman, Mark E Gerber, Mihir K Bhayani, Kristine Kuchta, Kanav Kumar, Aobo Ma, Yupeng Ren, Li-Qun Zhang
OBJECTIVES: To determine the characteristics of laser-protected endotracheal tubes (LPETs) valued by otolaryngologists performing transoral laser surgery in the head and neck and to measure LPET stiffness. METHODS: An online questionnaire was completed by American Broncho-Esophagological Association (ABEA) and American Head and Neck Society (AHNS) members. LPET distal end compliance was measured in a biomechanics laboratory. RESULTS: A total of 228 out of 2109 combined ABEA and AHNS members completed the survey...
February 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29425986/is-edema-a-matter-of-concern-after-laser-ablation-of-epileptogenic-focus
#20
Vivek Tandon, Michael Lang, Poodipedi Sarat Chandra, Ashwini Sharan, Ajay Garg, Manjari Tripathi
BACKGROUND: A stereotactically placed laser fiber can deliver thermal energy to an epileptogenic focus in brain. This procedure is done under intraoperative (thermography) magnetic resonance imaging (MRI) guidance. Thermoablation can lead to edema in surrounding area and can cause secondary insult. In this case report of three cases, we have quantified the edema produced after laser ablation, with sequential MRI in immediate post-operative period. CASE DESCRIPTION(S): Three patients of intractable epilepsy underwent proper neurological and neuro-radiological workup to localize the site of epileptogenic foci...
February 6, 2018: World Neurosurgery
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