Laser Applications in Medicine and Photodynamic Therapy
The laser medical application of a few selected items is considered in this short review. These include laser-tissue interactions, low level laser therapy, photo dynamic therapy, purification of drinking water and terahertz application including a caution of various laser hazards. Medical treatment is based on the interaction of laser radiation with biological tissue which enabled the development of an entire new class of non-invasive treatments. The unique application potential of photodynamic therapy in malignant tissue treatment is emphasized. Optimum choice of laser, pulse duration and irradiance along with appropriate chemicals makes it a strong competitor over conventional treatments.