What is the definition or description of: photodynamic therapy?

Light treatment : Photodynamic (pdt) therapy involves the use of a unit that emits "intense pulsed light" or "ipl" in combination with a chemical that absorbs light energy. By applying a chemical such as levulan to the skin then exposing the area to light from the ipl the effects and benefits of the light therapy are enhanced. Uses for pdt include acne, aged skin and enlarged oil glands.

Photodynamic therapy: Photodynamic therapy (pdt) involves activation of a photosensitizer by visible light in the presence of oxygen to produce reactive oxygen radicals which selectively destroys the target tissue.

Phototherapy: Photodynamic therapy matches up a specific drug and a specific type of light to destroy certain targeted cells... Like cancer cells... It also can be used to treat other conditions like acne.

Type of treatment: Photodynamic therapy (pdt) uses a drug, called a photosensitizer, and a light to kill cancer cells. Depending on the type of cancer, the drug is applied to the surface of the skin or injected. It can be used for certain cancers of the skin, esophagus, and lung. Studies are being done looking at the use of pdt for cancers of the head and neck, brain, and gastrointestinal tract.