Various lasers are used more and more in all fields of medicine. Particularly with ophthalmology lasers have become
extremely important in treatment and prevention of disease. When light shines through certain substances, its energy level
is increased. Depending on the substance used, various qualities of laser can be produced. The decision to use a certain
laser for a certain problem is determined by the tissue's ability to absorb a particular laser light. The goal is to focus
the laser light on the tissue being treated without damaging the portions of the eye that it passes through or the
surrounding tissue. Therefore it is important to consider the duration of the laser, the color or type of light, the heat
generated, the number of pulses, etc. The types of laser discussed in Eyeline are the Excimer, the YAG and the Argon. These
are by no means the only type, but they are the most commonly used at this time.
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