Posts Tagged eye tracker
Wavefront Guided Lasik and Night Driving Performance
Posted by Dr. John Suson in Milwaukee Eye Care on June 4th, 2009
Wavefront Guided Lasik and Night Driving.
Wavefront Guided Lasik treatments use a highly advanced method of scanning the eye for higher order optical aberrations. It has been known for some time that using the excimer laser to eliminate these optical aberrations gives better visual outcomes in situations of low light compared to conventional Lasik treatments. The Wavefront system that I use is called the Visx Star S4 IR Customvue™ system.
Lasik Eye Trackers, Iris Registration, and Decentration.
Posted by Dr. John Suson in Lasik | iLasik, Milwaukee Eye Care on May 31st, 2009
In the early days of laser refractive surgery, the laser systems were relatively simple. The laser energy was produced in a relatively circular simple pattern which expanded outward. The surgeon maintained control of the treatment alignment manually while using an aiming reticle viewed through the surgical microscope. In those days, if a patient had excessive movement or oscillation of their eye, it could be quite challenging to maintain proper centration of the laser treatment. It is always best to maintain perfect centration of treatment in order to obtain the best optical results. Any significant deviation from center can lead to suboptimal results and even induced astigmatism or other optical aberrations. Decentration and related optical aberrations were actually a rare but important complication after Lasik or PRK in its early days. Innovations in technology have reduced their incidence considerably, however.