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The Excimer Laser

The Excimer Laser. By Aprile Small. What is it? . The excimer laser is a computer-controlled ultraviolet beam of light used to correct nearsightedness. Each pulse can cut 39 millionths of an inch of tissue in 12 billionths of a second. How is it used?.

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The Excimer Laser

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  1. The Excimer Laser By Aprile Small

  2. What is it? The excimer laser is a computer-controlled ultraviolet beam of light used to correct nearsightedness. Each pulse can cut 39 millionths of an inch of tissue in 12 billionths of a second.

  3. How is it used? Before surgery, a map is constructed of the eye. The required changed is then calculated and entered into the computer. A physician cuts a flap of tissue from the cornea. The laser is then used to remove specific areas of tissue from beneath the cornea, improving the patient’s eyesight.

  4. Success Rate Studies show a 95% success rate for corrective eyesight surgeries. Only 5% of patients still require glasses for distance, such as when driving.

  5. Photos Courtesy of: Tyson, Jeff. “How Lasik Works.” 14 June 2005 http://health.howstuffworks.com/lasik4.htm

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