Interestingly, Cold lasers are portable devices typically held by the clinician, often resembling the size of a flashlight. These lasers are positioned directly over the injured area for a duration ranging from 30 seconds to several minutes. The specific time depends on the size of the treated area and the dosage administered by the cold laser apparatus.
During this interval, non-thermal light photons emitted by the laser permeate the layers of the skin, which include the dermis, epidermis, and the subcutaneous tissue or fatty tissue beneath the skin. This light possesses the capability to penetrate 2 to 5 centimeters beneath the skin at 90 milliwatts and 830 nanometers.
Once the light energy successfully traverses the skin layers and reaches its intended destination, it is absorbed and engages with light-sensitive components within the cells. In essence, this process can be likened to photosynthesis in plants, where sunlight is assimilated by plants, converting it into usable energy for their growth.
As cells assimilate this light energy, it initiates a sequence of events within the cell, which is hypothesized to ultimately yield the following outcomes:
- Normalization of impaired or damaged tissue.
- Diminishment of pain, inflammation, and swelling.
- A comprehensive reduction in the time needed for healing, achieved by boosting intracellular metabolism.