Colleen,

The info I have directly from VELscope is that the device "was developed by The British Columbia Cancer Agency and LED Dental Inc. This is from a Public Relayions Statement given to me by them after purchasing the light. MD Anderson may have been involved, but not acknowledged here.

David,

Glad to help. Good luck with your dentist. If he wants to discuss the VELscope and it's usage with me, let me know. I'll get in touch with him.

Jane,

Getting back to your April 30th question:

1. ViziLite...This is a link to the page on their site that explains how it works. http://www.vizilite.com/about/

2. VELscope...There is no real good explanation on their website, so I found this in some literature I got with the light: "The VELscope handpiece emits a safe, visible blue light into the oral cavity which excites the oral tissue and causes it to fluoresce. When viewd through the VELscope Handpiece, healthy tissue typically shows up as a bright green color while suspicious tissue can cause a loss of fluorescence, which thus may appear dark."

I hope this helps. Let me know if there is anything else I can do.

Jerry