Fritz Hollwich was a pioneer in the field of light research. He discovered the "non-visual" pathways of the optic nerve, proving beyond a shadow of a doubt that light passing through the eye controls a majority of biological systems, including our circadian rhythm, sleep/wake cycles, liver function, kidney function, heart function, brain function, and the production of key hormones and neurotransmitters throughout the entire body.
Square frames with subtle upper and lower curves and a retro keyhole bridge. This black frame is for those wanting a bold style yet with refined touches.
Was so happy with my day lenses that I made a second purchase of night lenses. RA over delivers again, I also purchased the Light Diet course and am anxious to go thru the material. Thank you again for the health education, quality products and service.
Thank you so much for your kind words, Peter! We are so grateful that you are benefitting from our products. Please do not hesitate to reach out if we can be of assistance.
Protect Your Health
Finding yourself inside, staring at screens day and night? You need to protect your health from the damaging effects of all that artificial blue light. Ra Optics glasses are scientifically-proven to block 95-100% of artificial blue light, saving you from poor sleep, eyestrain, headaches, and feeling fatigued.
As Featured On
Why Ra Optics
For years I searched for a treatment that would heal - not mask - my underlying health issues. What I uncovered changed everything about the way I thought about light, sleep and my health. Keep reading to learn how Ra Optics’ Blue Light Blocking Glasses have made all the difference.
What makes our glasses so effective?
We started with science then made it stylish. Our glasses have been developed with leaders of photoscience, neuroscience, and optics. They are infused with pigments that have been tested and retested for effectiveness. We personally know they work, but many leaders in health and fitness can attest to that too.