$30 for an Eye Exam and $100 Toward Prescription Glasses at Omelio Optical ($175 Value)

Eldersburg

$30 Buy!
Value Discount You Save
$175 83% $145
Limited time remaining!
Over 10 bought
Only 48 left

It's important to have regular eye exams so that you can tell if your vision is slipping or if your loved ones are devolving into fuzzy blobs. Stay sharp with this Groupon.

The Deal

  • $30 for an eye exam ($175 value) and $100 toward prescription glasses ($175 total value)

Frames and single vision lenses both start at $95.

Polarized Lenses: Blocking the Glare

The inventory includes sunglasses with polarized lenses. Learn exactly what that means with Groupon’s introduction to this technology.

When light leaves the sun, it’s kind of aimless. As a ray barrels through space at the speed of, well, light, the advancing electromagnetic field that makes up a light wave fluctuates in strength around the direction of the ray in many different planes.

It’s the job of polarized lenses to get this erratic light in line. A polarizing filter consists of microscopic crystals in which strands of molecules are all aligned parallel to each other. When unpolarized light hits the filter, those molecule chains absorb any energy that’s traveling in the same plane they’re aligned in, blocking it from passing through. What emerges on the other side is now polarized, with all its energy fluctuating within a single plane.

Why worry about how a wave of light gets to you at all? As anyone who’s ever squinted through the too-bright reflection from a car’s hood or a body of water can sense, light polarized in certain directions can be dangerous. When light bounces off horizontal surfaces, it becomes horizontally polarized, resulting in the blinding phenomenon known as glare. For this reason, sunglasses with polarized lenses are coated with (or, in some cases, formulated containing) a filter that blocks this horizontal light, allowing through only the gentler vertical components in the environment. This improves safety for drivers, beachgoers, boaters, and whale ranchers, although not for downhill skiers—on the slopes, you need to see horizontally reflected light to alert you to icy patches ahead.

In a Nutshell

Try on frames by Vera Bradley and Calvin Klein inside a shop owned by the Omelio family with over 50 years of filling eyeglass prescriptions

The Fine Print

Expires 90 days after purchase. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Appointment required. Not valid for non-prescription sunglasses. Not valid with insurance. Complete pair must be purchased at time of eye exam. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

For those who dress to thrill