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What is LASIK?


What is LASIK?

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A state-of-the-art laser is used to reshape the eye to lessen one's dependency on glasses. With this laser vision correction, people can free themselves of glasses, which can literally change their way of life. Procedures such as the now very popular LASIK are included under the broad heading of refractive surgery.

LASIKGood candidates for laser vision correction are at least eighteen years of age, in good general and eye health with no diseases such as cataracts or glaucoma. Although no one can promise patients"perfect" or 20-20 vision, most laser patients no longer need glasses or contacts to drive, play sports, watch movies or TV or to participate in careers requiring excellent vision. Even those who are severely nearsighted, astigmatic and farsighted can be treated-- and achieve outstanding results.

THE LASIK PROCEDURE

LASIK (Laser-In-Situ Keratomileusis) is currently the most common type of laser vision correction procedure. It is an extremely effective outpatient procedure that is suitable for low, moderate, and higher prescriptions. It can be used to correct severe prescriptions, and is currently one of the most commonly performed healthcare procedures in North America.

Although no medical procedure is perfect, the Excimer Laser allows for an unparalleled degree of precision and predictability. Each pulse of the laser can remove 39-millionths of an inch of tissue in 12-billionths of a second. This enables an experienced surgeon to achieve remarkable accuracy while maintaining excellent control throughout the procedure.

The Excimer Laser

The Excimer laser is an ultraviolet laser, which utilizes Argon and Fluorine gas to create a non-thermal, or cool beam, of laser light, which can break molecular bonds in a process commonly referred to as"photoablation". A simple way to imagine how the laser works is to think of it as placing the curvature from your glasses or contact lenses onto the front surface of your eye, allowing you to see without corrective eyewear.

The most important aspect of the excimer laser is its remarkable precision. It is able to remove 0.25 microns of tissue in a single pulse; that is, 1/200th of a human hair, 1/40th of a human cell, or 39 millionths of an inch in 12 billionths of a second!