Technolas 217 Excimer laser
Bausch & Lomb's Z100 is the world's leading excimer laser. It's innovative "flying spot" technology produces an extremely smooth corneal surface. Unlike standard lasers, the B&L Z100 uses a state of the art feedback mechanism that makes sure every pulse is placed exactly as prescribed. The Bausch & Lomb Z100 laser is a 7th generation, flying spot laser with an eye tracker that is capable of treating the entire cornea.
What is a "flying spot" laser?
An excimer laser is an extremely precise computerized instrument that uses invisible ultra-violet light to perform corneal surgery. The cool light produces virtually no damage to the surrounding tissue, increasing its safety. Each pulse of the laser removes only a minute amount of corneal tissue.
- about 1/500th of the thickness of a human hair.
Larger Treatment Zone
Many lasers only treat an area of 6-8mm with narrow smoothing of the edges. This can result in night vision difficulties when the patient is under low light conditions, as the pupil can grow/dilate up to twice its normal size to accomodate for the lack of light. Thus, the pupil can enlarge beyond the treatment zone resulting in glare and a "halo" effect.
The Bausch & Lomb laser eliminates this problem by offering the widest treatment zone available for treatment. In addition, the laser creates a blend zone that allows the doctor to smooth the corrected area into the rest of the cornea, maintaining a spherical shape.
FDA Clinical trial Results
*U.S. FDA clinical studies results show that, following Lasik surgery using the Bausch & Lomb Z100 laser, 99.7% of patients see 20/40 or better without glasses or contacts. 20/40 is the legal requirement for being able to drive without correction. Results also concluded that 87.3% of patients see 20/20 or better without glasses or contacts and that over 90% of patients treated do not experience any night vision disturbances.
Source: http://www.fda.gov/cdrh/LASIK/lasers.htm
