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Lasik Laser Procedures

What is LASIK?

LASIK surgery is the most common vision correction procedure offered around the world. LASIK stands for Laser In-situ Keratomileusis, referring to reshaping the cornea below the surface to correct vision. Over the past 15 years, LASIK eye surgery has become a tremendously popular way to reduce or eliminate the need for glasses.

More than 30 million LASIK procedures have been performed worldwide.

FOCUS Laser Vision uses special software, which allows us to create personal surgeons outcome tables and to compare our results with WaveLight Allegretto users around the world. WaveLight is the only laser company that is so confident about its results that it provides this web based data analysis program for all of its surgeons.

As a patient you can be confident that we are constantly checking our results and comparing them to other WaveLight surgeons. With our own personalized treatment results, we can continuously modify our treatment plans to insure the very highest success.

The LASIK Procedure

After creating the surface layer using a device called a microkeratome, the computer-controlled WaveLight excimer laser is then used to reshape the cornea by removing a microscopic layer of corneal tissue. In less than 20 seconds, ultraviolet laser light reshapes the eye with accuracy up to 0.25 microns, or 1/4000 of a millimeter.

Speed is important because the faster the laser, the less chance the cornea will have to dry and the more successful and predictable the outcome. Once your doctor has completed this portion of the procedure, the flap is placed back down to its original position. It takes around five to seven minutes to treat each eye. The corneal flap seals quickly in its original position.

In the case of short sight, the tissue removed is in the center of the cornea, which results in flattening of the cornea. For most patients, flattening of the cornea will allow incoming light rays to be focused on the retina. In the case of long sight, the tissue is removed in the periphery of the cornea, which results in a steepening of the cornea. This steepening is what allows patients to see clearly. The corneal flap becomes more secure the longer the period of time that has passed from the original procedure. After the first week, it is very rare that the corneal layer can be moved from its normal position, and only then with very direct trauma. (For this reason, we offer surface laser LASEK for people who regularly participate in contact sports, such as boxing)

 

 

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