The shift of OR illumination from traditional incandescent to LED technology has received a lot of attention. Some of the benefits of LED are already on your tongue: reduced heat..
An anaesthetic machine is just a pneumatic device that provides a variable mixture of oxygen, gas, and a sedative substance to a patient, enabling them to sleep through a major operation.
Laser therapies are medical procedures that make use of focussed light. Light from a laser (which stands for light amplification by stimulated emission of radiation) is adjusted to certain wavelengths, unlike light from most other sources.