The field of low level laser therapy is one of the newest ones in the medical and scientific timeline, having emerged in the mid-60s, just a few years after the first laser was successfully tested in 1960 by American physicist Theodore Maiman. But the concept of using light to treat medical ailments is a lot older than that, the earliest 20th century example being the studies of Nobel Prize winning scientist Niels Finsen. In 1903, Finsen studied the effects of ultraviolet radiation in the killing of bacteria on cutaneous tuberculosis.
For the most part, though, pre-laser studies into the clinical uses of light focused on light’s thermal destructive powers. It wasn’t until the laser was invented that focus shifted somewhat towards the non-destructive benefits of light emission, which is at the basis of the low level laser therapy field.
The Pros
Low level laser therapy began with the experiments of Endre Mester, who proved the positive effects of low level laser light in the stimulation of tissue repair, placing his emphasis on the potential for healing diabetic ulcers.
Since then, further studies have shown low level laser therapy to be beneficial in the treatment of neck pain, rheumatoid arthritis, osteoarthritis, carpal tunnel syndrome, and other musculatory problems.
Low level laser therapy is painless and non-invasive. Also, all studies conducted have shown low level laser therapy to have no adverse side-effects, which have made it a popular alternative to more drastic treatments or medication.
The Cons
Because it’s a new medical field, low level laser treatment studies vary a lot in the ways that they are conducted. As a result, many of the claims of such studies are often undermined by the fact that the methodology used for the research was not up to par with scientific standards. Thus, there are a lot of companies out there who advertise low level laser treatments that have yet to be officially proven to work and accepted by the larger clinical and medical community, and might thus be falsely presented.
The FDA, though it has officially approved a variety of low level laser treatments, still considers the field as experimental, due to an insufficient number of trials and evidence. However, companies who specialize in low level laser therapy are working to conduct proper scientific studies in hopes advancing the legitimacy of their field.
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