Laser Vision Correction
The excimer laser is an exciting medical tool uniquely suited to the task of refractive corneal surgery. In refractive surgery, we are attempting to reshape the cornea so that rays of light are focused clearly on the retina. This laser produces a cool beam of ultraviolet light (193nm). The beam literally vaporizes tissue as it breaks carbon-to-carbon molecular bonds. Tissue is removed in a precise fashion on a microscopic level. Each pulse of the laser removes 0.25 microns of tissue, or 1/39 millionths of an inch. This allows the cornea to be gently and precisely re-sculpted into the desired shape.
Photorefractive Keratectomy (PRK)
Photorefractive Keratectomy (PRK) is a procedure in which the front surface of the cornea is sculpted with the laser. The surgeon prepares the eye by gently removing the surface layer known as the epithelium. This epithelial layer regenerates itself within a few days. Computer-controlled pulses are directed on the surface to reshape the corneal stroma, which lies just underneath the epithelium. Less than 10% of the cornea is affected with the deeper layers remaining virtually untouched. The entire procedure takes less than 15 minutes and the actual laser time is usually less than one minute. It is completely painless.
Laser Assisted in-Situ Keratomileusis (Lasik)
Laser Assisted in-Situ Keratomileusis (Lasik) also uses the excimer laser to reshape the cornea but it is done under a protective flap of corneal stroma and epithelium. A specialized instrument called a microkeratome creates this flap of tissue that is attached by a "hinge". This flap is folded back to expose the deeper corneal tissue. The laser gently reshapes this inner surface of the cornea. The flap is then replaced to its original position where it heals naturally and securely. This procedure takes less than 10 minutes and again, the laser time is less than one minute. It is also completely painless.
Patient Testimonials
"I still see perfect after eight years. One of the best decisions I’ve ever made."
-Jon Matlock, 37, Owner, Matlock Auto Repair. (Dr. Massengale’s first laser surgery patient)
"Before my surgery, I couldn’t see 10 feet in front of me without my contacts. Now I have 20/10 vision; I highly recommend Dr. Massengale and this procedure."
-Lauryn Carter, 23, Membership Services Manager
"Spring 2008 I decided to have the PRK procedure. The explanations and preparation leading up to the day were very thorough, and I knew exactly what to expect. My family was allowed to be there, and the Doctor and staff spoke to me throughout the procedure keeping me aware, to the second, as to what was happening. But the best part was the after-care. Dr. Massengale and his staff went above and beyond on following up, and being available to any questions or concerns I had. I currently have 20/15 and this summer for the first time in my life, went swimming and was actually able to SEE where I was going. So, no more contacts, and no more waking up and having to fumble around to find my glasses before I can even see what time it is. What an awesome way to improve your life! THANKS!"
-Gwendolyn Downing, 33, Licensed Professional Counselor
Please click here to download an informational packet on laser surgery.
