This article Anodyne Light Therapy Doesn't Ease Sensory Neuropathy in Diabetics appearing today on Medscape sheds doubt on the purported benefits of Monochromatic Infrared Energy (MIRE) therapy using the probably best known MIRE device on the market.
This double blind study utilized a number of measures which point to a strong placebo effect but refute the claimed benefits of the device itself.
Hopefully I will be able to find the original research article for a more critical review. But in the meantime for those considering the purchase of this device I guess the phrase "Buyer Beware" should hold special meaning in this case.