Sacramento Lasik California
Sunday, May 11, 2008
Sunday, May 11, 2008
LiangVision.com - OPD Wavefront Technology
LASIK is now the vision correction procedure of choice for many ophthalmologists worldwide. Instead of removing the surface epithelium with the laser and exposing many nerve endings (as in PRK), the surgeon performing LASIK uses a motor-powered microkeratome to create a "flap." The flap is then lifted and reflected back, allowing a computer guided Excimer laser (cold laser) to use light pulses to remodel the corneal tissue underneath. Afterward, the flap is gently positioned back onto the cornea. Since this procedure is less traumatic to the outer surface of the eye, vision is restored more quickly and the patient's discomfort is reduced. Most patients report greater comfort after surgery and can generally drive two to three days after the surgery.
| Terminology | Testimonials |
Wavefront technology is new technology that measures higher order aberrations unique to your eye or that are unique to an individual’s visual system. Wavefront technology was originally developed for astrophysics to reduce atmospheric distortions when viewing distant objects in space through a high-powered telescope. By using this same technology, a narrow ray of eye-safe light can be passed through the optical system of the human eye and measure the optical distortions, or aberrations of the light as it passes out of the eye.
The OPD-Scan is the wavefront diagnostic equipment Dr. Liang uses that can very accurately measure higher order aberrations. It maps the eye much like taking a finger print of the eye. Wavefront is helpful in determining if you have significant pre-operative higher order aberrations and this information can be used to determine the best way of treating your eyes.
