CR39 SV Day (Reading)

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.

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.

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.