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
I didn’t expect to see a benefit to using these glasses so quickly, but after a week or so I could tell my eyes were much less strained after a week of staring at screens. Wish I had picked up a pair sooner, and will be getting the red tinted version shortly.
These glasses had better quality than a pair of ray-bans that I bout for double the price. Cut quality of the lenses and the arms.
I love these glasses! They look great and my sleep has become so much better thanks to these!
Within moments of wearing these glasses, I felt calming in my nervous system and clarifying of energies in my mind. I was hoping they would fit my face and they fit perfectly! ...and I'm grateful to say that I have fallen asleep with them on, which is a first. I'm generally fairly sensitive and that should say everything! Highly recommend these!
I have worn other blue light brand glasses and these are by far superior. I do not need any fancy measurement tools to feel the difference. These are THE best.
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.
