Ashley Thomas

Date of Award


Document Type




First Advisor

Sonya Williams

Second Advisor

Sarah N. Thomas


Photodynamic therapy is a new treatment that is being introduced into the veterinary community. Photodynamic therapy is the use of light activated chemotherapy to kill cancer cells (Dougherty, 1998). It has already been approved by the US Food and Drug Administration to be used as a form of cancer treatment in humans, but has not been carried over to the veterinary community. That is until now. Photodynamic therapy is now being tested in the veterinary community in hopes to find the same results that the human medical community has when dealing with certain types of cancer. They also hope to permanently adopt the new procedure into facilities as an alternative form of cancer treatment.

The purpose of this study is to determine what laser works the best with what concentration of drug and what amount of exposure time will yield the highest kill percentage.