C$19 for C$200 Toward Complete Pair of Prescription Eyeglasses at Oasis Eye Care

Edmonton

C$19
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Value Discount You Save
C$200 90% C$181
Limited time remaining!
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Over 160 bought

In a Nutshell

Shop brands of eyeglasses that includes Fendi, Tom Ford, Gucci, Bellinger and Hugo Boss

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. Limit 1 per person. Must have valid prescription. Consultation required; non-candidates and other refund requests will be honored before service provided. Must purchase lenses and frame. Not valid towards eye exams, safety eye-wear, or contact lenses. Not valid toward kids frames/sunglasses, Superflex, Kate Spade, Marc by Marc, Carrera, Soho, Nat and Coco, Myznaki, and Diesel frames. Must use promotional value in 1 visit. Cannot be combined with any other discounts, promotions, offers, in-store deals, or gift cards. Valid with insurance. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

C$19 for C$200 toward a pair of prescription eyeglasses

Visible Light: Staring Down Roy G. Biv

Correcting your vision makes the world brighter and sharper. Learn why we see what we’re seeing with Groupon’s illumination of visible light.

For most of us, vision is as simple as breathing: open your eyes, and the visible world appears in all its bright glory. It’s made possible by a rather complex system of interactions between visible objects, our eyes, and light itself. As we gaze at a flower garden or squint at a stranger who looks like our aunt’s cat, our eyes are bombarded by massless energy packets called photons, moving in electromagnetic waves of varying length and frequency. Specialized cells in our eyes called cones interpret each wavelength as a different color; the shortest wavelength we can see appears to us as violet, the longest as red.

When we see a red apple, we’re seeing an object that absorbs all wavelengths of light (whether from the sun or another source) except for the ones our eyes code as red, which are bounced back to our eyes. Other objects can sort out these wavelengths differently than our cones: although sunlight may appear white to us, placing a prism in its path reveals that it contains wavelengths all along the spectrum. The prism’s structure makes the apparently white light refract, or bend, at different degrees depending on the wavelength, stretching into a rainbow of all the colors we’re familiar with.

What we call visible light is a rather arbitrary selection of the spectrum, excerpted by the limitations of our eyes rather than by nature itself. Beyond the visible spectrum, light continues in wavelengths we are blind to. Those longer than red are called infrared, and those shorter than violet are called ultraviolet. The extent of the visible spectrum can change from species to species—and even from human to human. As the Guardian reported, some birds, insects, and small mammals can see ultraviolet light. People aren’t generally born with this power, but there’s one reliable way to access it, besides hiring a mouse to sit on your shoulder and tell you about all the cool ultraviolet stuff you’re missing. Because the lenses of our eyes normally filter out UV light, those who have had their lenses removed during cataract surgery report that the bluish glow of UV light adds an extra color to their world.

Customer Reviews

Awesome
Laura M. · August 26, 2016
Treated me quite well.
D R. · June 5, 2016
Excellent service, large selection of frames and very quick arrival of order.
Rena M. · July 28, 2015
Merchant Location Map
  1. 1

    Edmonton

    11432 17 Ave. SW

    Edmonton, AB T6W 2S5

    +17807050135

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By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.
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