
A light therapy device emitting red light at the specific 670 nanometer wavelength, used in clinical studies to potentially improve visual acuity and mitochondrial function in individuals over 40.
view red light of about 670 nanometers. 670 nanometers would appear red to you and me.
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"The speaker references specific studies by Dr. Glenn Jeffrey at University College London using 670 nanometers of red light to improve visual function and rescue rods and cones in the retina."