نتایج جستجو برای: surface ablation
تعداد نتایج: 681652 فیلتر نتایج به سال:
PURPOSE To evaluate the trends in corneal refractive procedure selection for the correction of myopia, focusing on the relative proportions of laser in situ keratomileusis (LASIK) and surface ablation procedures. METHODS Only eyes that underwent LASIK or surface ablation for the correction of myopia between 2008-2011 were included in this retrospective study. Additional recorded parameters in...
OBJECTIVES This study evaluated the role of pre-procedural clinical variables to predict procedural and clinical outcomes of catheter ablation in patients with long-lasting persistent atrial fibrillation (AF). BACKGROUND Catheter ablation of persistent AF remains a challenging task. METHODS Catheter ablation was performed in 90 patients (76 men, age 57 +/- 11 years) with long-lasting persis...
We perform subsurface ablation of atherosclerotic plaque using ultrafast pulses. Excised mouse aortas containing atherosclerotic plaque were ablated with ultrafast near-infrared (NIR) laser pulses. Optical coherence tomography (OCT) was used to observe the ablation result, while the physical damage was inspected in histological sections. We characterize the effects of incident pulse energy on s...
Fabrication of microfluidic devices by excimer laser ablation under different atmospheres may provide variations in polymer microchannel surface characteristics. The surface chemistry and electroosmotic (EO) mobility of polymer microchannels laser ablated under different atmospheres were studied by X-ray photoelectron spectroscopy and current monitoring mobility measurements, respectively. The ...
Ultra-short pulsed laser removal of thin biofilm contamination on different substrates has been conducted via the use of plasma-mediated ablation. The biofilms were formed using sheep whole blood. The ablation was generated using a 1.2ps ultra-short pulsed laser with wavelength centered at 1552nm. The blood contamination was transformed into plasma and collected with a vacuum system. The single...
The Rayleigh-Taylor (RT) instability with material ablation through the unstable interface is the key physics that determines success or failure of inertial fusion energy (IFE) generation, as the RT instability potentially quenches ignition and burn by disintegrating the IFE target. We present two suppression schemes of the RT growth without significant degradation of the target density. The fi...
NEW research on the physiology of corneal healing should help to improve refractive surgery outcomes, reported investigators at a clinical research symposium held during the XXIV Congress of the ESCRS. In introducing the session, John Marshall PhD FRCOphth (Hon) noted that while there have been amazing advances in the development of diagnostic instrumentation and laser technology since the earl...
introduction: to compare endovenous laser ablation (evla) and radiofrequency ablation (rfa) in different legs in the same individual in patients with venous insufficiency. methods: sixty patients with bilateral saphenous vein insufficiency were included. evla or rfa was applied to one of the patient’s legs and rfa or evla to the other leg. results: evla and rfa complications were hyperemia at 2...
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