Eyeglass Lenses Can Do THAT? 5 Facts You Didn't Know

   
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November 13, 2017, by Bard Optical

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At their base level, eyeglasses help people with vision problems see the world. However, there is quite a bit more technology in eyeglasses than meets the eye. Read on to learn five interesting facts about how eyeglasses work and the types of eyeglasses that are available.

1. Eyeglass Lenses Can Reduce Glare 

Think about a day after a snowstorm during which the sun is shining. You look out the window or get in your car, and you squint when realizing how bright it is outside. This is because light reflects off the surface of the road or the snow. The same phenomenon also happens off roads, water, rain, and even water vapor in the air.

This glare can affect how you see.

Polarized lenses help to reduce this glare by eliminating light from reflective sources. This results in increased visual clarity for you and better comfort when outdoors.

You can benefit from polarized lenses while driving or taking pictures outdoors.

2. Your Lenses Are Probably Unbreakable

Using the term “glasses” is a bit misleading. In fact, most eyeglass lenses aren’t made out of glass at all. They’re made of polycarbonate. This material helps reduce the size of lenses by 30% and is up to 10 times stronger than plastic. That means they are resistant to impact.

Polycarbonate is so strong, in fact, that it is used in roofing, lighting, and even police riot shields.

Polycarbonate lenses are great for children, people who are active, and in environments in which glasses may be otherwise easily broken.

3. Eyeglasses Are Repellants

Self-described neat freaks will be happy to learn that anti-reflective eyeglasses can repel water and grease from the lenses. Lenses in these glasses contain a “microscopically smooth oleophobic layer on the front and rear surfaces,” according to The Telegraph.

The coating is the same type that appears on touchscreen phones. It’s why your phone isn’t covered with your fingerprints. This oleophobic layer prevents human oil from adhering to it.

Perhaps it’s only a matter of time until we can swipe on our glasses like we can with our phones.

4. TVs Aren’t The Only Thing in HD

A common selling point for TV nowadays is that it’s in high definition. However, eyeglasses are also in HD now.

High-definition glasses, also called “free form” lenses, reduces peripheral distortion because it puts the design of the lens on the back surface. These provide sharper vision and increased clarity, yielding more vivid colors.

Consumer Reports suggests that people with more complex vision problems, such as cataracts or corneal scars, may consider wearing HD glasses.  

5. Eyeglasses Can Adjust To Nearly Any Brightness

You may have seen this one since it’s a little more obvious. Eyeglasses can tint themselves depending on what kind of light you’re in. If you’re in full sunlight, they tint themselves. If you’re driving at night, you can get true clarity.

The way self-tinting lenses work is that they are photochromic. That means they darken when exposed to the invisible UV rays that originate from the sun, protecting your eyes in the process.

As you can see, eyeglasses are more than just a fashion piece. If you’re interested in learning more about these amazing features of eyeglasses, please stop in to a Bard Optical near you. 

 

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