[Day Lenses]

Nate Day

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

 

$145.00
Please ensure that your prescription includes a pupillary distance (PD), is not expired, and has a power range of +2.00 to -6.00 spheres and up to -2.00 cylinder. Otherwise your order may be substantially delayed or we may cancel and refund your order.
Every order arrives with a luxury cleaning cloth and a branded case.
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Customer Reviews

Based on 2 reviews
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T
T.R.
Love them

Glasses NEVER look good on me and I have kind of a smaller head so I was shocked at how well they fit, they are so comfortable, actually look cute, and I really do feel a difference from wearing them! Going to get my fiancé a pair now!

P
P.L.
Nate’s are great!

Stylish glasses that I’m not ashamed to wear.

BENEFITS

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.

OUR STORY

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.

SUPERIOR SCIENCE

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.