Nathaniel Kleitman was an American physiologist and sleep researcher who served as Professor Emeritus in Physiology at the University of Chicago. He is recognized as the father of modern sleep research, and is the author of the seminal 1939 book Sleep and Wakefulness.
Square frames in a rich tortoise shell hue with subtle curves and a clear saddle bridge. If you like glasses that wrap, this frame has you in mind.
Fit: Medium - Learn Your Size
If you are someone that is constantly under artifical light then you should get a set of Ra Optics glasses. One of the most noticable things is the extra focus during the day and a easier time falling asleep at night. They come with a case and a box for storage.
I use these glasses because I am really working on getting my circadian rhythm on line for health reasons. I use the Clyde daylight in the morning before the sun has come up to move around my house and to check things on my phone and computer. Use the orange ones in the evenings for the same reasons. I am very happy with them.
This is a life changing product. It works just as advertised. My kid went from frustrated gaming to laughing gaming. I cant believe screens are this harmful that a simple pair of glasses can change your life. Thankyou!
Love these glasses! Look great and are top quality and fit perfectly. I now have 2 pairs and have the Bluesync on order. No regrets…
Very sturdy frame
Great quality lenses
Very relaxing and pleasant to wear
Reduced my eye strain from computer
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.
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.
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.
