'Some high-power lasers used in entertainment applications can also cause eye and skin damage if higher energy (Joule) is directed onto the human body and at a close enough range.
Some lasers have the potential to cause eye damage if aimed directly into the eye, or if someone were to stare directly into a stationary laser beam. Some high–power lasers used in entertainment applications can also cause burns or skin damage if enough energy (typically a stationary beam) is directed onto the human body and at a close enough range.
In the US, the use of lasers in entertainment, like other laser products, is regulated by the Food and Drug Administration (FDA) and additionally by some state regulatory agencies such as New York State which requires licensure of some laser operators. Safety precautions used by laser lighting professionals include beamstops and procedures so that the beam is projected above the heads of the audience. It is possible, and in some countries commonplace, to do deliberate audience scanning. In such a case, the show is supposed to be designed and analyzed to keep the beam moving, so that no harmful amount of laser energy is ever
received by any individual audience member.
Lasers used outdoors can pose a risk of “flash blindness” to pilots of aircraft if too–bright light enters the cockpit. In the U.S., outdoor laser use is jointly regulated by the FDA and FAA (Federal Aviation Administration).