LASIK surgery is fairly new, compared to the 100 years that refractive surgery in general has been around. Since the FDA's approval of the Excimer Laser in 1995, however, Dallas LASIK has made leaps and bounds in terms of advancements.
What Is The Excimer Laser?
The Excimer Laser is a technique using a wide beam of laser energy to reshape the cornea. There was quite a bit of technological hardware and software required for this method, and the energy from the laser quickly wore down the optical mirrors and lenses used in the procedure. Because of the constant repairs being made to the machines, this became quite costly.
In 1998, the FDA approved a new selection of Excimer Lasers that used a more precise laser. These newer Excimer Lasers used a type of scanning system to locate the exact position of the eye that needed correction, and once that position was determined, deliver the beam of energy to it. This method was more patient friendly, as there was less stress on the patient to remain perfectly still, since the machine calculated the eye faults on its own. It was much more exact than a laser eye surgeon previously could be and didn't come with as much wear and tear than the previous lasers did.
Higher Speeds Lasers
Another advancement in LASIK is the development of a higher speed laser. In the 1990's, lasers would typically require between 30-90 seconds of exposure, depending on how severe corrections were. Now, lasers require between 2-30 seconds of exposure. This is quite significant, especially when considering that when the longer the cornea is exposed to this type of environment, there can be greater variety in results.
Using Wavefront Technology
Wavefront technology is another advancement in Dallas LASIK. Wavefront technology is based on a principle used by astronomers for years. Light is sent into the patient's eyes, and the light that is reflected back to the computer is measured. With these measurements, the laser eye surgeon is able to identify any errors or distortions in the patient's vision. With this information, the computer can build a 3-D map of the patient's eyes. This technology is capable of measuring aberrations like nearsightedness and farsightedness, as well as halos and starbursts. Wavefront technology has produced remarkable results. In VISX's FDA clinical trial, one year after the procedure, 98% of participants had 20/20 vision, or better, and didn't need glasses or contacts.
All-Laser LASIK
The latest advancement in laser eye surgery is all-laser LASIK, a completely bladeless surgery. The iFS IntraLASE Femtosecond laser is giving more people the option to have vision surgery who previously were told they were not candidates. The first step in IntraLASIK is the creation of a corneal flap, which previously was done using a microkeratome blade. With the new technology, a laser is instead used in this step, creating a more accurate flap in less time.
If you’re ready to start enjoying the benefits of the latest Dallas LASIK advancements, call Carter Eye Center today and schedule a consultation!
