Laser vision correction is a procedure that improves vision by permanently changing the shape of the cornea (the clear covering of the front of the eye) with a laser. Often referred to as LASIK, it is the most commonly performed type of laser procedure and an effective treatment for a wide range of vision problems.
There are two variables that can be altered to achieve clear vision: changing the light as it enters the eye, and altering the front curve of the eye.
For centuries directing light rays with lenses has obtained clear vision. Glass or plastic lenses bend light the exact amount required to change the focal point to match the length of the eye, producing clear vision. Later, contact lenses were used to achieve the same result.
Researchers have been trying for decades to come up with a more permanent solution to create clear vision. Early research led to the development of several surgical procedures such as Radial Keratotomy (RK). Those procedures offered some improvements, but were limited in the degree of correction possible. With the advent of the excimer laser, more precise vision correction procedures such as Photorefractive Keratectomy (PRK), Laser in Situ Keratomileusis (LASIK) and Laser Assisted Sub-Epithelial Keratectomy (LASEK) were developed.
Radial Keratotomy (RK)
Myopia—mild to moderate Astigmatism—with or without myopia An ophthalmologist makes small incisions on the surface of the cornea. These incisions reshape the cornea to allow light to refract in the correct location. Correct refraction makes the vision clearer. This surgery is performed on both eyes at the same time.
LASIK (Laser Assisted In-Situ Keratomileusis)
The surgeon first instills an anesthetic drop, and then creates a corneal flap on the very top of the cornea with a device called a microkeratome or the new IntraLase All Laser bladeless procedure. This flap is created to allow the laser to reshape the cornea in the layers underneath. Once the laser treatment has been completed, the flap is placed back in position to protect the newly reshaped cornea. The average LASIK procedure takes approximately 6 to 10 minutes per eye.
Advanced CustomVue iLASIK
The Advanced CustomVue procedure is an individualized laser vision correction treatment that utilizes the same technique as LASIK surgery; however, it is coupled with WaveScan/Wavefront Fournier/Hartman-Shack guided technology. No other laser offers this true Wavefront High Definition system that is why NASA and the US Navy have approved only the iLASIK technology for their members. This current WaveScan technology was originally developed for use in high-powered telescopes to reduce distortions when viewing distant objects in space. This technology has now been applied to laser vision correction, measuring the visual imperfections in an individual’s eyes that could never be measured before with standard methods used for glasses and contact lenses using the non-invasive WaveScan device. The WaveScan images then produce a WavePrint map. The individual’s customized measurements obtained by the WaveScan will be transferred to the laser to guide the treatment. The doctor then uses that information to fine-tune the procedure thereby providing a new level of precision and accuracy called Personal Best Vision. For additional information, please visit www.personalbestvision.com.
The marriage of the Advanced CustomVue technology with the new Intralase All Laser used to create the flap eliminates the microkeratome, or blade, used in the past. The iLASIK or Intelligent Laser Procedure virtually eliminates all the complications associated with the blade technique, which represents a majority of LASIK complications. iLASIK is Safer, more precise, 100 times more accurate than a blade and leads to potentially far better vision than previous technologies. iLASIK greatly reduces re-treatments, dry eye, postoperative astigmatism and imperfections in your vision as reported in peer to peer scientific studies.