How
Laser Works
The
human body absorbs and utilizes light emitted from the 635 soft lasers in the
same way the chain of photosynthesis reaction in plants uses light quanta. The
basic principle is that the energy in a soft laser beam can be incorporated into
the natural processes of the living body.
Coherent
monochromatic red light emitted at a wavelength of 635. 8 nanometers
(
nm ) is absorbed very well by the tissues, as the Optimum photoelectric
effect occurs in this range of spectrum. The 635.8 nm wavelength comes within
the absorption lines of the ions in the human body.
WHAT
IS LASER THERAPY?
This
is the use of a laser beam to treat an injury to a soft tissue such as a
ligament, tendon or muscle. A low intensity laser beam reduces pain,
inflammation and swelling, and promotes healing of damaged tissue. It works by
increasing the flow of blood and lymph through tissue, and by reducing the
production of prostaglandin, which is a chemical released in response to an
injury that causes pain and inflammation. A laser produces a concentrated beam
of radiation, which is focused onto the area of damaged tissue from a hand-held
treatment probe.
WHY
IS IT PERFORMED?
Injury
to a muscle leaves behind residual down this scar tissue, allowing exercises to
muscle to its normal length and thereby further strain or tear.
Laser
therapy speeds up recovery from a recent injury to a ligament, tendon or muscle.
It reduces pain and swelling and promotes healing. It can also be used to treat
an old injury in one of these structures. Scar tissue, which causes the muscle
to shorten and work less efficiently.
Laser
can help break down this scar tissue, allowing exercises to be done to stretch
the muscle to its normal length and thereby reducing the risk of a further
strain or tear.
KEY
INFORMATIONAL POINTS
Laser
is the most modern form of therapy. Low power laser is quickly becoming the
first line attack in pain control and medicine. It is safe, painless quick, easy
to apply, and results are often immediate with no side effects.
Low
power lasers are not harmful. Lasers used for tissue stimulation do not have
sufficient strength to damage cells. However,
as the laser beam is quite bright, the patient should avoid staring directly
into the beam as it could irritate the retina of the eye.
Lasers
stimulate biological processes. When laser light interacts with tissue, it
causes certain photochemical reactions to occur, and stimulates natural
biological processes. Many of these reactions have beneficial effects on the
body which help to control pain, as well as arthritis, tendon and ligament
problems, carpel tunnel, nerve root irritations, back and neck dysfunction,
tennis elbow, burns, herpes lesions and a variety of other skin conditions.