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Evaluation of thermal load during laser corneal refractive surgery using infrared thermography
Authors:U Brunsmann  U Sauer  S Arba-Mosquera  T Magnago  N Triefenbach
Institution:1. Zentrum Naturwissenschaften, Aschaffenburg University of Applied Sciences, Würzburger Str. 45, D-63743 Aschaffenburg, Germany;2. SCHWIND eye-tech-solutions, Mainparkstrasse 6-10, D-63801 Kleinostheim, Germany;1. Institut de Neurosciences de la Timone, UMR7289, Aix-Marseille Université & CNRS, 13385 Marseille, France;2. Laboratoire d’Anthropologie et de Psychologie Cognitives et Sociales, Institut des Sciences Humaines et Sociales de Nice, Université de Nice-Sophia Antipolis, 06357 Nice, France;3. Laboratoire Néovasc, ERI-28, Normandie Université, IRIB, 76183 Rouen, France;4. Département des Sciences de la Vie, Université de Nice-Sophia Antipolis, 06108 Nice, France;5. Department of Psychology, University of Haifa, Haifa 31905, Israel;6. Pharma Division, CNS Department, Hoffmann-La Roche, Basel, Switzerland;1. Department of Biology, Waseda University, 2-2 Wakamatsu-cho, Shinjuku, Tokyo 162-8480, Japan;2. Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, 2-8-30 Kounodai, Ichikawa, Chiba 272-0827, Japan;1. Department of Molecular, Cellular and Developmental Neuroscience, Cajal Institute – CSIC, Madrid, Spain;2. Centro de Investigación en Red en Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain;1. Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India;2. Department of Biochemistry, Manipal 576104, Karnataka, India;3. Department of Anatomy, Kasturba Medical College, Manipal 576104, Karnataka, India;4. Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka, India;1. Division of Fetal and Transitional Medicine, Children''s National Medical Center, 111 Michigan Ave, NW, Washington, DC 20010, United States;2. Division of Neonatology, Children''s National Medical Center, 111 Michigan Ave, NW, Washington, DC 20010, United States
Abstract:Infrared thermography is used for evaluation of the mean temperature as a measure of thermal load during corneal refractive surgery. An experimental method to determine emissivity and to calibrate the thermografic system is presented. In a case study on the porcine eye two dimensional temperature distributions with lateral resolution of 170 μm and line scans with temporal resolution of 13 μs are discussed with respect to the meaning of mean temperature. Using the newest generation of surgery equipment it is shown, that the mean temperature rise can be kept below 5 °C during myopic laser in situ keratomileusis (LASIK) treatments corresponding to an aberration-free correction of ?2.75 diopter.
Keywords:
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