Swanwick Crystal Day - Diamond Clear Blue Light Blocking Glasses
Crystal Day Swannies - Clear Blue Light Glasses - Diamond
Crystal Day Swannies - Clear Blue Light Glasses - Diamond
Swanwick Crystal Day - Diamond Clear Blue Light Blocking Glasses
Crystal Day Swannies - Clear Blue Light Glasses - Diamond
Crystal Day Swannies - Clear Blue Light Glasses - Diamond

Crystal Day Swannies

$129.99 USD

42 reviews
Free US Shipping on orders over $50
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Description
Swanwick's Crystal Day Swannies® are tough to beat on the fashion front! Originally launched on Indiegogo, these Day Swannies® remain at the top of our bestsellers list month after month. You'll block the bad blue light from phones, tablets, and computers while attracting compliments like never before. You’ll find most clear-lens blue blockers on the market only block blue light up to 420nm. Day Swannies®, however, block over 99% of blue light at 400 nanometers, graduating to 45% at 450nm, and 21-45% of blue light between 450-500nm. This blend of blue light blocking ensures you the optimal conditions for performing your best all day long.
Fast Shipping

We offer free shipping on all orders of $50 or above.

Shipping costs for orders below $50 are calculated at checkout.

Expedited shipping options are available on qualifying orders. This will be presented as an option at checkout when available.

All prescription lens orders are shipped free within the US.
Returns & Guarantee

We’re so sure you’ll love your Swannies that we offer a 30-day 100% money-back guarantee* on our glasses and lighting.

See our full returns policy.

* Please note: the following products are excluded:
Prescription eyewear, “Last Chance” offers, individual bundle items.
Sleep masks, earplugs, melatonin, linen spray, and oil roll-ons for reasons of hygiene.

See our prescription returns policy.
View details

Cellulose Acetate Frames

Natural, BPA-free material, adjustable, strong and lightweight.

Spring Hinges

Wide range of movement for extra comfort and durability.

CR-39 Lenses

Prescription-grade lenses and anti-reflective coatings for superior visual clarity and protection against blue light.

Control blue light exposure

The Day Swannies Lens provides you with the perfect balance of protection against the most harmful part of the blue light spectrum (400-450nm), while letting in some of the healthy blue light (450-500nm), which helps regular circadian rhythm and improves alertness and memory function.

Diamond Crystal Collection

  Small Regular Large
Lens Width 50 mm 50 mm 55 mm
Bridge 17 mm 17 mm 17 mm
Temple 140 mm 140 mm 150 mm
Width 127 mm 138 mm 142 mm
Lens Height 36 mm 38 mm 46 mm

The majority of adults find that the regular size is the best fit for them.

Compare the measurements to your current eyewear. The lens, bridge and temple widths are usually marked on the inside arm of the glasses.

Acetate frames can be heated up and molded for the perfect custom fit, or adjusted if bent out of shape. Most opticians or eyewear stores will do this for free.

How to reduce digital eye strain

  • Day Swannies can be worn all day, every day.
  • Wear them whenever you are using digital devices to protect your eyes against harmful blue light and eliminate the symptoms of digital eye strain, including dry, sore eyes and headaches.

Can Day Swannies help with sleep?

  • Day Swannies are not designed to help with sleep.
  • When the sun goes down, we recommend switching to Night Swannies which block the full spectrum of blue light, to optimize your sleep/wake cycle and get a great night's sleep.
Crystal Day Swannies
Diamond Crystal Day Swannies

Day Swannies® blue-light blocking glasses are essential for productivity and eye care

The result of extensive research and development, Swannies Blue Light Blocking Glasses were created to solve the pain points of working in a digital environment. This is how we do it.

Classic Day Lenses

Block more blue light than other glasses

Most clear lens blue blockers block very little blue light over 420nm. Day Swannies block more blue light in the harmful part of the spectrum up to and over 450nm. Our full transmission reports are available on our website.

Swanwick Man and woman wearing Day and Night Classic Black Swannies

No more headaches

Prolonged exposure to blue light can cause unwanted headaches. Reduce Digital Eye Strain symptoms such as headaches by wearing Day Swannies during screen time.

Best blue light blocking technology

Specially designed lens coatings are combined with proprietary lenses to block the right amount of blue light for daytime. Laboratory tested for effectiveness and quality.

Optimized productivity

Digital eye strain resulting from working on screens for prolonged periods can lower productivity over time. Day Swannies help you work smarter and longer by alleviating the effects of screen time, so you can continue to be productive all day, every day.

Stop fatigued eyes from screen time

The flicker and glare from digital screens make your eyes work harder than normal. This causes eye fatigue and tiredness. Day Swannies counteract these negative effects caused by screen exposure, reducing eye fatigue.

Utilize the good blue light

Some blue light is good for you in the daytime. Your body relies on natural blue light to regulate circadian rhythm, and blue light can contribute to memory, cognitive function and alertness. Day Swannies allow natural levels of good blue light above 450nm to pass, so you don’t miss out on these benefits, while remaining protected.

Crystal Day Swannies FAQ

How much does shipping cost?

We offer free shipping on all orders of $50 or above.

Shipping costs for orders below $50 are calculated at checkout.

Expedited shipping options are available on qualifying orders. This will be presented as an option at checkout when available.

All prescription lens orders are shipped free within the US.
What is your returns policy?

We’re so sure you’ll love your Swannies that we offer a 30-day 100% money-back guarantee* on our glasses and lighting.

See our full returns policy.

* Please note: the following products are excluded:
Prescription eyewear, “Last Chance” offers, individual bundle items.
Sleep masks, earplugs, melatonin, linen spray, and oil roll-ons for reasons of hygiene.

See our prescription returns policy.
Why Swanwick?

Swanwick is the only brand of blue light blockers that have routinely sought third party validation. We've been studied by the University of Washington and the University of Indiana. We've been featured in a study by SleepScore Labs, and had research findings published in the Journal of Applied Psychology and Harvard Business Review.

There is no other brand on the market that has gone to the lengths we have to make the validation of our technology the backbone of our company. Talk is cheap in the blue light world. Why Swanwick? Because our actions speak way louder than their words.
What makes our Crystal Day Swannies so great?
Swanwick's Crystal Day Swannies® are tough to beat on the fashion front! Originally launched on Indiegogo, these Day Swannies® remain at the top of our bestsellers list month after month. You'll block the bad blue light from phones, tablets, and computers while attracting compliments like never before. You’ll find most clear-lens blue blockers on the market only block blue light up to 420nm. Day Swannies®, however, block over 99% of blue light at 400 nanometers, graduating to 45% at 450nm, and 21-45% of blue light between 450-500nm. This blend of blue light blocking ensures you the optimal conditions for performing your best all day long.