$59 for $150 Toward Prescription Lenses and Frames at Essex Vision Center

Centerbrook

$59
Buy!
Value Discount You Save
$150 61% $91
Limited time remaining!

When stranded in the wilderness, glasses can help you turn sunbeams into fire or look smart as you explain the inedibility of man to a family of grizzly bears. Equip your eyes for the great outdoors with this Groupon.

The Deal

  • $59 for $150 toward prescription lenses and frames
  • Click here to view a general list of available frames and lenses.

Transitional Lenses: Instant Shade for Your Eyes

Doing away with the burden of swapping prescription glasses for a blindfold every time the sun comes out, transitional lenses—more accurately known as photochromic lenses—almost seem like magic. Indoors, the lenses are clear, but outside, they darken as if transforming into a separate pair of sunglasses, shading your eyes from seeing the sun in its bathrobe.

Shady Science

The keys to the transition are the UV rays of natural light. In glass lenses, the glass is embedded with crystals of silver chloride or silver halide. When exposed to UV rays, the crystals combine with the glass molecules, forming elemental silver, which appears dark compared to the clear glass. These days, however, most photochromic lenses are made of plastic. Instead of silver molecules, the lenses use an organic dye. UV rays break the chemical bonds, causing the molecules to rearrange into a form that absorbs the visible wavelengths of sunlight.

Bonus Points

  • The Corning Glass Company—notable today for producing the durable glass on smartphones—invented the first photochromic lenses in 1960.
  • Many photochromic lenses don’t work while driving, since car windows filter out UV light. Ask your optician about alternative transitional-lens options that do work inside vehicles or spaceships headed toward the sun.
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    Centerbrook

    90 Main St

    Ste 101

    Centerbrook, Connecticut 06409

    860-767-3206

    Get Directions

In a Nutshell

Wide selection of eyeglass frames from designers such as Fossil, Gucci, and Calvin Klein

The Fine Print

Expires 180 days after purchase. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. Must use promotion value in one visit. Cannot be used with any other promotions or discounts. Cannot be used with an insurance plan. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

For those who dress to thrill