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Vectra® Genisys Laser
ABOUT LASER LIGHT THERAPY
Continuous Mode
– The output of the laser light is not interrupted during the treatment time.
Dosage
– A measure of the intensity of the laser light energy over the treatment area. The unit of measure is Joules or Joules/cm
2
.
Energy
– Measured in Joules, energy equals the treatment time multiplied by the power. More importantly, Energy Density equals
the power output multiplied by the treatment time, and divided by the spot size (cm
2
). This gives a more specific measurement of
energy delivered.
Frequency
– Pulsed frequencies are selectable from 8 to 10,000 Hz.
Laser Head
– The clear lens face of the applicator that contacts the patient’s skin. It consists of laser diodes with or without LED’s or
SLD’s (depending on the applicator).
Power
– Measured in Watts (W), power wattage is directly proportional to the treatment time and penetration of the laser light
energy. High-powered diodes will reduce patients’ treatment time and give a higher amount of energy at a deeper depth. Power
output can be either continuous or pulsed.
Power Density -
Ratio of power divided by treatment time.
Pulsed Mode
– This is the ratio of the “On” time to “Total” time of the cycle, expressed as a percentage. The lower the percentage, the
lower temporal average intensity. 100% is continuous laser light. Pulsed Mode is 90% on and 10% off.
NOTE:
Pulsed Mode is also equivalent to Duty Cycle.
Spot Size -
Area of the LED, SLD, or laser beam when it leaves the face of the lens.
Treatment Area -
Area of tissue affected by LED, SLD, or laser when wavelength, divergence angles, and depth of penetration are
factored. This is the area used to calculate dosage.
Treatment Time
– Measured in seconds, it is the suggested time per laser point that therapy is given.
OVERVIEW OF LASER LIGHT THERAPY
