Laser surgery

Laser surgery
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Laser surgery is a type of surgery that uses a laser (in contrast to using a scalpel) to cut tissue.

Examples include the use of a laser scalpel in otherwise conventional surgery, and soft-tissue laser surgery, in which the laser beam vaporizes soft tissue with high water content.

Laser surgery is commonly used on the eye. Techniques used include LASIK, which is used to correct near and far-sightedness in vision, and photorefractive keratectomy, a procedure which permanently reshapes the cornea using an excimer laser to remove a small amount of the human tissue.[1][2][3]

Types of surgical lasers include carbon dioxide, argon, Nd:YAG laser, and potassium titanyl phosphate, from among others.

Effects

  1. Photochemical effect: clinically referred to as photodynamic therapy. Photosensitizer (photophrin II) is administered which is taken up by the tumor tissue and later irradiated by laser light resulting in highly toxic substances with resultant necrosis of the tumor. Photodynamic therapy is used in palliation of oesophagial and bronchial carcinoma and ablation of mucosal cancers of Gastrointestinal tract and urinary bladder.
  2. Photoablative effect: Used in eye surgeries like band keratoplast, and endartectomy of peripheral blood vessels.
  3. Photothermal effect: this property is used for endoscopic control of bleeding e.g. Bleeding peptic ulcers, oesophagial varices
  4. Photomechanical effect: used in intraluminal lithotripsy
Other Languages
العربية: جراحة الليزر
한국어: 레이저 수술
português: Cirurgia a laser
svenska: Laserkirurgi
中文: 雷射手術