this model aims to provide the results for temperature distribution evolution inside the human eye, exposed to several laser wavelengths, 193 nm arf excimer laser, 694.3 nm ruby laser, and 1064 nm. d. Photodisruption: primary type of laser tissue interaction used in LASIK surgery. Vytvoření rohovkové lamely na principu fotodisrupce - laserový paprsek je zaostřen do jednoho bodu, kde dojde ke koncentraci energie a tkáň rohovky se okamži. Excimer photoablation was performed in a 6.0-6.5 mm optical zone; 4) outcome: dry eye parameters. PDF REFRACTIVE SURGERY FEATURE STORY Comparing Femtosecond Lasers - CRSToday SESSION NAME Surgical Lasers: Understanding Lasers, Tissue Response, and Safety in the OR SPEAKER Leslie J. Pollard, BSMT, LEOT, CMLSO SESSION NUMBER 0049 DATE/TIME Tuesday, April 1, 2014, 2:30-4pm CONTACT HOURS (CH) 1.5 SESSION OVERVIEW: When potentially dangerous Class 3b or Class 4 lasers are used in the OR, the safety of both the patient The type of laser- tissue interaction depends on the power density (W/cm2) and exposure time (s) (8). A shorter pulse (200-500 fs) needs lower energy to achieve the threshold of photodisruption than a longer pulse (500-1300 fs). Excimer lasers are used in LASIK, What kinds of LASIK are there . A method for performing intrastromal photorefractive keratectomy in the cornea of an eye, using a pulsed laser beam, includes the initial step of focusing the beam to a focal spot at a selected starting point in the stroma. LASERs - Eye Notes what is shorter than a femtosecond - dndeesl.com Photodisruption Plasma-induced ablation Photoablation The 500KHz laser produces ultrafast laser pulses (10 -15 sec.) . P. S. The quartz fiber-optic probe is powered by an excimer laser transmitting light to the TM for precise cold photoablation of the tissue, thereby obviating thermal damage . All cases presented as unilateral areas of raised iris hyperpigmentation, ranging in size from 2× 3 mm to 4×12 mm. It has been hypothesized that the XeCl laser . Endothelial cell damage related to transcorneal photocoagulation can be secondary to direct cellular destruction, either as a result of a direct thermal burn or coagulation necrosis, or due to vaporization at the point of laser focus. This is a concise presentation for medical students (espec.
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