photodynamic therapy

Photodynamic therapy (PDT), matured as a feasible medical technology in the 1980s at several institutions throughout the world, is a ternary treatment for cancer involving three key components: a photosensitizer, light, and tissue oxygen. It is also being investigated for treatment of psoriasis and acne, and is an approved treatment for wet macular degeneration. The German physician Friedrich Meyer–Betz performed the first study with photodynamic therapy (PDT) with porphyrins in humans in 1913. Meyer–Betz tested the effects of haematoporphyrin-PDT on his own skin. Modern day versions of it were tested at the Mayo Clinic and Roswell Park Cancer Center, but did not really become widespread until Thomas Dougherty initiated clinical trials and formed the International Photodynamic Association, in 1986.
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Photodynamic therapy n. A type of phototherapy in which a nontoxic light-sensitive compound that has been injected into a patient is exposed [more]Photodynamic therapy - Community and Resources

Treatment that destroys cancer cells with lasers and drugs that become active when exposed to light.

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Treatment with drugs that become active when exposed to light. These drugs kill cancer cells.

the process of blood vessel coagulation in the retina through activation of a light-sensitive drug injected into the system.
For more information, see the MD Support Library. To read personal experiences, visit the Treatment Archives on the MD Support web site.