NIR light, or PBM, is a promising and powerful method to mediate biological functions via low power light wavelength from red to near-infrared regions. Eyes and neurons rely on cytochrome c oxidase to generate energy for metabolic process. NIR light can penetrate these tissues and assist recoveries of neurons in methanol intoxication, optic nerve trauma and neuropathy, retinal injuries and pigmentosa, and macular degeneration. NIR light can also help brains to recover from atherothrombotic stroke, brain injury, and neurodegeneration. No side effects have been observed from animals and humans. Therefore, NIR light could be a safe and effective method for a wide range of applications in ophthalmological and neurological fields in the near future.
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