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How Lasers Damage the Eyes. Be it an accident or on purpose, staring into a laser pointer can cause some serious damage to your eye. The kind of damage caused (permanent or temporary) is determined on a case by case basis. Damage also depends on how strong the laser is.
Two characteristics of laser light contribute to the hazard: 1  Laser light can be emitted in a tight beam that does not grow in size at a distance from the laser. 2  The eye can focus a laser beam to a very small, intense spot on its retina, which can result in a burn or blind spot.