How lasers are used to treat cancer

Lasers, often seen in sci-fi, are crucial in medicine, especially oncology. They offer precision in treatments like vision correction and cancer therapy. Lasers work by emitting focused light, with properties like monochromatic and coherent light. In cancer treatment, lasers target tissues or activate drugs to kill cancer cells. Different lasers, like CO2, argon, and ND:YAG, serve various medical purposes. Despite their benefits, such as reduced infection risk and faster healing, laser treatments have limitations, including availability and safety precautions. Overall, lasers are versatile tools in modern medicine.

Describe how photodynamic therapy (PDT) works in cancer treatment.

What are the different types of lasers mentioned in the text and their uses?

Discuss the advantages and limitations of laser treatment in medicine.