Viewing red light (670nm) for 2-3 minutes daily for up to 12 weeks resulted in a 22% improvement in visual acuity in individuals aged 40-72.

“What's remarkable is that when you collapse the results across these two studies, what they found is that when looking at these subjects ranging from 28 years old to about 72 years old, the major findings were that in individuals 40 years old or older, so in the 40 to 72-year-old bracket, but not in the subjects younger than 40 years old, they saw an improvement in visual function. That improvement in visual function was an improvement in visual acuity, meaning the ability to resolve fine detail, and using a particular measure of visual function, which is called the Tritan exam. T-R-I-T-A-N, Tritan exam, which specifically addresses the function of the so-called short wavelength cones, the ones that respond to green and blue light, they saw a 22% improvement in visual acuity, which in the landscape of visual testing is an extremely exciting result.”