Archive for April, 2013

What is a Polycarbonate High Index Lens?

  • Kieran Hunt
  • April 29, 2013

Polycarbonate high index lenses are a bit of a paradox. The refractive index of polycarbonate is about 1.58, but most optical professionals nowadays consider 1.60 to be the lowest refractive index that can be called “high index”. So what does this mean? Do polycarbonate high index lenses exist? The straight answer is no, but the […]

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Thick Glasses Lenses

  • Kieran Hunt
  • April 24, 2013

Is your glasses lenses thickness a problem? There are solutions to thick glasses lenses, and the best one is high index plastic. The lens material for high index allows your optical supplier to create sharp-looking glasses with the thinnest, lightest lenses possible, and the best part is that high index also gets rid of the […]

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Why Do High Index Lenses Cost So Much?

  • Kieran Hunt
  • April 24, 2013

If you’re shopping online for high index prescription glasses or lenses, chances are you either don’t have eye insurance, your eye insurance won’t cover the new pair of glasses you need, or you need a special kind of glasses that you can’t find at the eye doctor’s office. Either way, you’re probably looking to spend […]

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What Makes the Index “High”?

  • Kieran Hunt
  • April 24, 2013

High index glasses contain lenses that have a refractive index that is generally above 1.60. If you are in the market for prescription glasses, you may be wondering what the difference is between 1.53, 1.60, 1.74, 1.80, and various other refractive indexes advertised online. Since most people shopping for glasses online are not optometrists, it […]

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High Index vs Hi Index and Lens vs Lense

  • Kieran Hunt
  • April 24, 2013

You may be wondering about some of the differences you see in spelling when it comes to high index lenses. Nowadays, it’s not uncommon for a site to come up with a different way of spelling something to attract the customer’s eye. First of all, it is very common to see high index lens written […]

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What are High Index Lenses?

  • Kieran Hunt
  • April 18, 2013

It’s easy to feel some ambiguity when it comes to high index lenses. Some of the most common questions floating around about high index lenses have to do with spelling differences, refractive index numbers (1.74, 1.67, etc), and the availability of high index lenses with regard to frame style. Hopefully this article will clear up […]

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