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Keywords:

  • laser surgery;
  • carbon dioxide;
  • argon;
  • neodymium:YAG;
  • ruby, safety

Abstract

The fundamental physical properties of lasers are discussed. Included in this presentation is a discussion of carbon dioxide, argon, neodymium:YAG and ruby lasers. Laser optics and beam characteristics as well as Q-switching are presented. Ocular hazards of lasers and preventive measures are discussed.