THE VISION CORRECTION PROCEDURE
HOW DOES LASER VISION CORRECTION IMPROVE VISION?
Laser vision correction improves vision by flattening or steepening the surface of the cornea with a cool beam of laser light.
In doing so, light can then focus on the retina, making images clearer. In essence, the cornea is reshaped by a laser to reduce the prescription of the eye and improve vision without glasses or contacts.
The 193 nanometer excimer laser is used in laser vision correction. The laser is categorized as a "cool" laser as it does not generate heat or burn tissue. Instead it breaks molecular bonds to vaporize solid into gas, a process known as sublimation. Each pulse of the laser lasts a billionth of a second and removes one quarter micron per pulse (a micron being one thousandth of one millimeter). Our technology includes the world's top two highest rated lasers: The Visx Star S4 active trak scanning and tracking laser, and the Bausch and Lomb Technolas 217.
Excimer laser technology has been available in Europe and Asia since the late 1980's. Millions of procedures have been performed since that time. The US FDA was one of the last governing bodies to approve the technology in October 1995. Since then millions of procedures have been performed in the US as well.
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