Dr Durrie: I'd like to work with the panel a little bit. We didn't talk ahead of time about how we are going to do this, but the question posed in this round table was, "What does technology really do for my practice?"* I have been working with several of the companies in this area for the last year and a half. I have tried to answer this question a little by using this with patients, and trying to figure out what the technology can add to what we already know. The way I look at it is that we've had Placido disc technology, which has been there for quite a while and has given us a certain level of information. As we started to move toward looking at elevation, I think that OrbScan plus other topographers drove us a little in that direction, and we are starting to look at heights in elevation. That gave us slightly more understanding. I started looking at that as more the shape of the eye, rather than just a bunch of colors. In my mind, I have looked at wavefront as giving me the shape of the optical system.It may be an odd way to look at it, but it means it is not just the cornea and the shape of the front of the eye, but essentially it is looking all the way through the eye and what happens to each light ray as it goes through the system and where it ends up, and once we look at it that way, how it really affects vision. Then you have to correlate this slightly with the things we already know. And I am going to emphasize this a little this morning. A lot of you are familiar with OrbScan. OrbScan gives you a bunch of information.
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