Plasma-induced ablation and photodisruption occur as a consequence of exposing the biological material to a power density above 1011 W/cm 2. Photodisruption From Wikipedia, the free encyclopedia Photodisruption is a form of minimally invasive surgery used in ophthalmology, utilizing infrared Nd:YAG lasers to form plasma ("lightning bolt"), which then causes acoustic shock waves ("thunderclap") which then in turn affects tissue. PDF Enhancement of Cortical Bone Ablation Using Ultrafast Pulsed Lasers 18. PDF George Simellis, Ph.d. In this video, we are going to see about Lasers in ophthalmology. In photocoagulation, laser light is absorbed by the target tissue or by neighboring tissue, generating heat that denatures proteins (i.e., coagulation). The journey to femtosecond laser-assisted cataract surgery: new ... Helium neon laser gives radiation in the red visible region at 632.8 nm. The Femtosecond Blade: Applications in Corneal Surgery; Lasik and Beyond; The Eye's Mechanisms for Autocalibration Femtosecond laser photodisruption of vitelline vessels of avian embryos ... The laser strips electrons from the target tissue. Online estimation of laser incision depth for transoral microsurgery ... SMILE CRITERIA PRK LASIK SMILE Year Of Health Canada Approval 1990 1994 2015 Generation Of Equipment 5 th Generation 5 Generation 1st Generation Type Of Treatment Laser Photoablation Laser Photoablation Laser Photodisruption Precision 0.12 um/pulse 0.12 um/pulse 2-3 . The first clinical results of 208 procedures conducted from June to November 2000 is reported. Further studies, especially prospective studies with a . Photodisruption: Carbon dioxide: 10,600: Photothermal: Nd . Photodisruption: Carbon dioxide: 10,600: Photothermal: Nd . 10. Excimer and Femtosecond Laser Instrumentation | SpringerLink PHOTOVAPORIZATION Vaporization of tissue to C02 and water occurs when its temperature rise or greater. The severe regurgitation observed after targeted photoablation of the AV cushion caused blood to pool in the venous network. Excimer photoablation was performed in a 6.0-6.5 mm optical zone; 4) outcome: dry eye parameters. A Comparison of Commercially Available Femtosecond Lasers in Refractive ... . Femto-lasik: The recent innovation in laser assisted refractive surgery ... The results of excimer laser photoablation to correct astigmatism are usually accurate, but is not as good as with myopic treatments. During the procedure, a femtosecond laser prepares a refractive lenticule within the cornea. Vytvoření rohovkové lamely na principu fotodisrupce - laserový paprsek je zaostřen do jednoho bodu, kde dojde ke koncentraci energie a tkáň rohovky se okamži. The 500KHz laser produces ultrafast laser pulses (10 -15 sec.) Lasers (surgery) - EyeWiki It should not to be confused student's macula, he developed a sunlight photocoagulatorwith photodisruption and photoablation, which entail (1947) and experimented with the Beck carbon arcdistinct molecular reactions and are utilised more commonly photocoagulator which was used clinically on severalin the anterior segment and for refractive .