Eye Safety Blog

What Do All of These Options Mean!?

Posted by Courtney DeFord on Mon, Feb 15, 2016 @ 15:02 PM

Do you ever go to your local eye care provider and when ordering your new glasses, you have no idea what anything is that they're asking you to order? Well I can tell you from personal experience that before I was educated about what all of the different options were, I would always just order the cheapest thing possible. I didn't think that the other upgrades were really worth paying the extra money for.

In some cases, I was right, it was not worth it for me, but there are others that think the same way that I always did, when in fact, they would really benefit from some of the options that are available to them. 

As a result, I figured that it would be a good idea for me to post about some of the options that are offered at most eye care providers, so that our readers can feel more confident the next time they order a new pair of glasses.

  Pros Cons
Glass Lenses
  • Exceptional Optics
  • Heavy
  • Breaks easily, which could easily harm the eyes
Plastic Lenses
  • Lightweight
  • Low Cost
  • Good Optics
  • Scratches Easily
  • Thicker than Polycarbonate or Hi-Index Lenses


Polycarbonate Lenses
  • Lighter than HI-Index
  • Impact resistant
  • Used widely for children, safety and sports
  • Blocks Ultra Violet light
  • Contains Scratch Coating
  • More expensive than plastic.
Trivex Lenses
  • Lightweight (lightest available)
  • Premium impact resistance
  • Higher Abb Value
  • More expensive than the other materials
Hi-Index 1.67
  • Lighter than plastic
  • Used for higher prescriptions
  • Blocks 100% of U.V light
  • More expensive
  • Not necessary for lower prescriptions
Anti-Scratch Coating
  • Protects against scratches
 
Anti-Reflective Coating
  • Eliminates reflections
  • Lenses become nearly invisible
  • Less glare from glasses in photos
  • Reduces eyestrain
  • Improves vision
  • Need for Hi-Index lenses
  • Premium A/R Coating has hard coating in it and usually comes with a warranty
  • Can be harder to keep clean
Transitions
  • Blocks out U.V light
  • Automattically tints
  • No need for spare prescription sunglasses
  • Un-tints automatically
  • Does not work in a car
  • Takes several minutes to return to clear once inside.
Tints
  • Used for visual comfort or fashion
  • Yellow tints are generally used for shooting
  • Green, Brown, and Grey tints are usually used for  sunglasses.
  • Red is generally used for a bold fashion statement.
  • Not always necessary
Mirror Coating
  • Used for sunglasses
  • Decreases the amount of light passing through the tinted lense by a further 10-60%
  • Very useful in sand, water, snow, and high altitudes
  • Gives the wearer a brown or grey tint to everything that they see
  • Easy to scratch
Anti-fog
  • Keeps lenses from fogging up
  • Can be applied to any lense material
 

 

So there you have it, friends. And if you're ever unsure about what options to get, but do not want to be forced into getting something that you don't need, come on in to Hi-Tech Optical, where our opticians do NOT work on salary, so you're sure to get an honest opinion every time!

Remember, Hi-Tech Optical. Savings, Service, Selection


 

Tags: Yellow Lens, Lenses, UV Rays, Fogging Lenses, Glasses, Safety, Fogged, Tint, Eyewear, Photochromic, Prevent fogging lenses, Fogging, Amber Lens, Brown Lens

Do You Suffer From Fogging Eyewear?

Posted by Cristie Wineland on Wed, Mar 07, 2012 @ 11:03 AM

When you rely on your glasses for everyday use the common problem of fogging can become a real annoyance. Whether you’re in and out of vehicles or buildings fogging lenses become a problem. Fog is moisture droplets that collect on the lenses and obscure vision.  People use a variety of anti-fog remedies and treatments to counteract this effect. The effectiveness comes from keeping water from collecting on the surface of your lenses.

Winter clothing can be a contributingC  Documents and Settings Stephanie Desktop Cristie Marketing Blogs Fogged Lenses factor to fogging eyewear. Check to make sure your winter clothing such
as a scarf is not directing your breath upward toward your eyes. The heat and moisture from your breath can easily cause fogging of the lenses.

Changing temperatures or can cause eyewear to fog up.
A gradual transition will help keep glasses from fogging. When inside, stand near the doorway where air is cooler and when in a vehicle allow it to heat up gradually when you’re hands are occupied and unable to your glasses.

An Example of Dangerous Fogging is downhill skiing

Skiing is already a dangerous sport without the added danger of fogging eyewear. Fogged lenses make you unable to avoid other skiers as well as see trees or snow conditions. As you ski your body radiates heat and moisture which then reaches your cold lenses and this creates fog on your eyewear. Try these tips below to help avoid fogging.

Tips on How to Prevent Your Eyewear from Fogging

  • One Solution
    -Apply liquid soap, potato juice, shaving cream and toothpaste containing no baking soda, which is abrasive, detergent, shampoo or shaving cream to your eyewear.
    -Let substance dry on glasses.
    -Wipe off extra without rinsing in an outward circular motion.

  • Second Solution
    -Coat lenses with a solution of three part water and one part white vinegar.
    -Rub solution on both lenses and let dry (Do not rinse or wipe away)

  • Third Solution
    -Use an Anti-fog product such as: Defog It™ which is a dry anti-fog cloth.
    -Follow the package instructions for proper use.

  • Fourth Solution
    -Acclimate a pair of glasses to the environment you are about to be in.

Warnings

Read warnings on anti-fogging products. Some anti-fogging products remove coatings and can dull plastic. Some anti-fog products require a long period of time for drying to avoid irritation to your eyes. If you have plastic lenses and are using a household item as anti-fogger, make sure it contains nothing abrasive.

Tags: Lenses, Fogging Lenses, Glasses, Anti-fog Lenses, Fogging Glasses, Fogged, Fogging Eyewear, Eyewear, Prevent fogging lenses, Fogging