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Frequently Asked Questions

 What is low level laser therapy?

Low level laser therapy (LLLT) is a light source treatment with a single coherent wavelength. It consists of a laser of lower power (< 500mw) compared surgical lasers. Unlike cosmetic lasers, LLLT emits no heat, sound, or vibration. Instead of producing a thermal effect, LLLT acts via nonthermal (hence first given the name of cold laser) or photochemical reactions in the cells, which is why LLLT is sometimes also referred to as photobiology or biostimulation.

 How does cold laser work?

Once the light (of a specific wavelength) penetrates skin and reaches targeted damaged tissues, it is absorbed by light sensitive elements of the cell in a process similar to photosynthesis in plants – absorbed light is converted to usable energy, which lead to reduction of inflammation, pain relief, enhanced immune response and overall, the healing time also shortens due to more efficient cellular metabolism. Extensive laboratory studies also suggest that irradiation stimulates collagen production, reduces oxidative stress, increases endorphin and serotonin levels and alters DNA synthesis, which are supportive for regeneration of damaged neurological tissues and other soft tissue reparation.

 What does LLLT do to the body?

Several mechanisms underlying the therapeutic effects of LLLT have been widely supported in clinical research around the world.

  • Anti Inflammatory effect
  • Analgesic effect
  • Tissue reparation
  • Immune system modulation
  • Stabilisation of blood lipid level
  • Nerve regeneration

 What is the treatment regime like?

This varies for different conditions. Time of each session is typically between 25 minutes to 50 minutes and should be applied two or more times a week. The frequency of treatments and duration of treatment will depend on the severity of your symptoms and other factors. Ultimately, you will elect the number of treatments.

 Is this the same as surgical or cosmetic lasers (such as the ones advertised for hair removal)?

No, surgical lasers are more powerful since their pulses are designed to disrupt and destroy cells. LLLT is of low power nature (typically under 0.5 Watt) and does not produce thermal or ablative effect, hence cause no tissue damage.

 Does it hurt?

LLLT is a non-invasive treatment. Patients generally do not feel any sensation during the treatment. LLLT certainly does not hurt.

 Is it safe?

While LLLT is safe to irradiate tissues, one should never stare directly into the beams. Sydney Laser Health Solutions provide safety eyewear during the treatment.

 Does it have any side effects?

No adverse side effect is documented so far. Some patients may feel tiredness, thirstiness, sleepiness and so on for a little while following the treatment. In addition, some patients (applicable for patients on pain management program) may feel slightly heightened painful sensations a few hours after treatment, this is consistent with literatures, which describe this as the initiation of the cellular healing process, this is not expected to last long.

 Is there a risk of developing skin cancer from exposures to Laser beam?

To date, there has been no report of cell mutation as a result of low level laser irradiation in research articles published.

 Who may not be suitable for LLLT?

There are some contraindications to the use of LLLT, these include:

  • Irradiation of the abdomen for pregnant patients
  • When malignant tumours are located in a target area for irradiation.
  • Light sensitive patients - pulsed light may trigger seizure for some epilepsy patients, though no incident has been reported if continuous or invisible beams are applied.

 Would normal tissue be affected?

Healthy cells also absorb light. Damaged or stressed cells, however, are associated with lower absorption threshold. That is, they are more likely to receive the benefit of LLLT.

 What are benefits from laser blood irradiation?

The non-invasive laser irradiation of blood is an ideal systemic therapy, which will supply photon energy directly to the body. Because the non-invasive method can be considered as riskless, it may be used on almost any patient and environment.

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