Photodynamic therapy, also known as PDT, uses a photosensitizing agent and particular types of light to treat cancer. The photosensitizing agent produces a form oxygen when it is exposed to certain wavelengths of light. The oxygen then kills the nearby cancer cells. The specific photosensitizing agent and wavelength of light determine how deeply the light …

Photodynamic therapy to treat skin cancer is a wonderful, non-invasive treatment that uses special drugs, called photosensitizing agents, along with light to kill skin cancer cells. Also called PDT, photodynamic therapy is only effective when special photo sensitive drugs have been turned on by light to treat the affected area. Your medical dermatologist treats an area …