Photodynamic therapy

Photodynamic therapy (PDT) is a form of phototherapy involving light and a photosensitizing chemical substance used in conjunction with molecular oxygen to elicit cell death (phototoxicity).

PDT is used in treating acne, wet age-related macular degeneration, psoriasis, and herpes. It is used to treat malignantcancers, including head and neck, lung, bladder and skin.

Advantages lessen the need for delicate surgery and lengthy recuperation and minimal formation of scar tissue and disfigurement. A side effect is the associated photosensitisation of skin tissue.