What is a primary function of a laser in medical applications?

The primary function of a laser in medical applications is to cut or coagulate tissue. Medical lasers emit focused light energy that can precisely target tissues within the body. This capability allows practitioners to perform surgical procedures with minimal damage to surrounding areas, resulting in less bleeding, quicker recovery times, and reduced risk of infection. For instance, lasers can be used in various procedures, including dermatology for skin resurfacing, ophthalmology for vision correction surgeries, and in dentistry for precise cutting of dental tissues.

Other options do not represent the main functions of lasers in medical contexts. While lasers can be used in imaging techniques and have roles in diagnostics, their most crucial and recognized application is in the cutting and coagulating of tissues during surgical procedures.