The present study extends these findings to include protection against photoreceptor degeneration in P23H rats. Previous studies in our laboratory have demonstrated the neuroprotective and retinoprotective actions of 670 nm light treatment in vitro and in vivo. Specific wavelengths of red light have also been shown to improve wound and burn healing. In SD rats, 670 nm light treatment produced a small, but statistically significant, increase in photoreceptor cell death compared with littermate controls.Įxcess photoreceptor degeneration in the P23H retinal begins just after eye opening, peaks in early postnatal life then slows, but persists into adulthood. For example, specific wavelengths of red and near-infrared (NIR) light have been shown to reduce inflammation and promote tissue repair, making red light therapy an excellent treatment for conditions like rosacea, eczema, psoriasis, and even acne. What all these wavelengths have in common is that they. The visible spectrum is from 630 to 660 nanometers, whereas the invisible infrared spectrum is from 810 to 850 nanomeneters. Treatment with 670 nm light attenuated photoreceptor death by nearly 50% in the P23H rat compared with untreated littermate controls. The term 'red light therapy' often includes wavelengths in both the visible spectrum of light and the invisible spectrum of light. In both P23H and SD rats, 670 nm LED treatment increased cytochrome oxidase activity when compared to untreated littermate controls. 11 Key Near-Infrared Light Therapy Benefits. TUNEL labeling was performed to detect apoptotic cells. The other eye of each animal was immersion fixed in 4% paraformaldehyde, washed, cryoprotected in 15% sucrose and sectioned at 14 microns. With the apropos acronym of SAD, this disorder has symptoms similar to depression (such as feeling sad, listless, and sluggish.

The transition from fall to winter means grayer skies, shorter days, and for some people, the return of seasonal affective disorder. At pnd 21, retinae were collected and mitochondrial metabolism was assessed by measurement of cytochrome oxidase activity. Bright light therapy can help ease SAD, major depression, and perinatal depression. Normal SD and P23H rat pups were exposed to 4 joules cm 2 of 670 nm light from a light emitting diode (LED) array or received sham treatment once per day for 5 days from postnatal day (pnd) 16 to 20. NIR therapy is also known as photobiomodulation (PBM), or low-level laser (light) therapy (LLLT). Both modalities offer drug-free healing and pain management. The present study was undertaken to test the hypothesis that a brief course of 670 nm LED treatment would improve mitochondrial function, attenuate oxidative stress and improve photoreceptor survival in a rodent model of retinitis pigmentosa, the P23H rat. Because near infrared therapy is non-invasive, safe and painless, it pairs extremely well with chiropractic. Though health benefits of exposure to certain wavelengths were known, experiments that Marshall Space Flight Center helped fund, with an eye toward addressing atrophy and inhibited healing in space, lent credence to the field and established the effectiveness of LED arrays for safer.

Near–infrared (NIR) light–emitting diode (LED) arrays have been shown to stimulate mitochondrial respiration and improve functional recovery of the retina and optic nerve after acute toxic injury. of Solon, Ohio, builds light-therapy devices based in part on NASA-funded research.

Near infrared light therapy