A laser weapon requires only a split second to obtain desired effects. Targets The most probable target of laser weapons is the human eye behind an optical or electro-optical system, specifically fire control devices and sights of direct fire systems. A laser beam entering a direct view optical system, such as a telescope, has its power increased by magnification of that system. Anyone looking through the system may suffer retinal burns. Severity of the burns, permanence of the damage, and time needed for healing depend on intensity of laser energy received magnification of the optical device, range to the laser, frequency of the laser, and duration of exposure to the laser.
Injuries range from temporary flash blinding to permanent loss of visual acuity.
A soldier with this type of injury may be incapacitated and unable to aim a weapon. The heat is intense enough to burn out electrical circuits or cause a sudden surge of electricity within the sight, making it temporally or permanently useless. Any device so affected may require extensive repairs. Laser weapons may be directed against individuals, although that is a very inefficient way to employ them. They can cause burns, with the eye being most susceptible to injury.