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  • Fourth Ave Vision Centre

What To Expect From Your Coatings

Glasses dog child

Take a look at your glasses. Do they have a green or blue reflection? If they do, it means you have an anti-reflective coating. About 75% of all lenses we sell these days have anti-reflective and scratch resistant coatings. These coatings make your lenses as clear as possible. Think of a window and how you can see your reflection in the glass. Without coating, eyeglass lenses would have the same nuisance reflections. Imagine how bothersome it would be looking at the reflection of your eyeball all day. At nighttime this is especially important with the bright led headlights shining into your vehicle. A great example of an anti-reflective coating is the one you have on your camera lenses.

The majority of lenses on the market are plastic. Because the base to which all coatings are sticking to is plastic, your lenses will only be scratch resistant to a point. As we like to say, nothing is scratch proof. In the old days lenses were glass, which is a harder material and therefore more difficult to scratch, however it had its disadvantages, namely being quite heavy and not as safe. The advantages of plastic are that they are much lighter and come in a variety of materials varying in thickness, especially important in high prescription lenses. Plastic lenses are also available in many specialty options like office lenses, driving lenses and self-tinting lenses.

Most of the coatings come with a 1 to 2 year warranty on manufacturer defect. If you ever notice your lenses are starting to look foggy or patchy or don’t seem to clean very easily anymore, bring them in and we can take a look to see if they’re under warranty.

You can find out more about Carl Zeiss lens coatings at

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