$20 for $150 Towards a Complete Pair of Prescription Eyeglasses at Crisp Vision Optometry

Multiple Locations

Value Discount You Save
$150 87% $130
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In a Nutshell

Frames from renowned designers such as Prada, Armani, Gucci, and Oakley—all expertly fitted to sit flush with the face

The Fine Print

Promotional value expires 180 days after purchase. Amount paid never expires. Consultation required; non-candidates and other refund requests will be honored before service provided. Limit 1 per person, may buy 3 additional as gifts. Valid only for option purchased. All goods or services must be used by the same person. Call for availability. Not valid with insurance. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $20 for $150 towards a complete pair of prescription eyeglasses

Corrective Lenses: Shedding Light Where It’s Needed

There’s a lot that can go wrong in the human eye, but fortunately opticians can do a lot to make up for that. Learn how with Groupon’s introduction to corrective lenses.

Light begins its transformation from electromagnetic radiation into visual information by traversing three parts of the eye. It first hits the outermost layer—the cornea—and then enters through the pupil to pass through the lens. The shape and orientation of all three elements are crucial, as they all affect how light is refracted onto the optic-nerve-connected retina at the back of the eye. If these mechanisms don’t get it right, corrective lenses can add a fourth layer to compensate.

For instance, nearsightedness is typically caused by a cornea that is overly rounded from staring at too many billiard balls, or by an eyeball that is too long. As light passes through the pupil, it focuses the light at a point before it hits the retina, creating a blurrier signal. So in this case, concave lenses work to spread the light they intercept before it hits the natural lens.

Today, sophisticated computer programs determine the exact degree of curvature necessary on each surface of the lens to approximate normal vision for eyes with various irregularities. The lenses themselves may be made of several different materials; glass, naturally, is the oldest, although its weight and fragility makes it less popular today. Plastic resin is most widely used, but injection-molded polycarbonate is a favorite of many opticians: along with being durable and light, it also filters out UV radiation and several of the dirtier types of glares.

Merchant Location Map
  1. 1

    Casanova Oak Knoll

    2440 Fremont St

    Ste 209

    Monterey, CA 93940

    +18313753937

    Get Directions
  2. 2

    Salinas

    1152 South Main Street

    Salinas, CA 93901

    +18316763669

    Get Directions

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