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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.
The potential for eye injury depends on the wavelength, the intensity of the laser radiation and the absorption characteristics of different eye tissues. Absorption of laser radiation occurs in the cornea, the lens and the retina. Absorption occurs at atomic and molecular level and is a wavelength-specific process.