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Anti-reflection coatings are not the same

7/3/2015

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However there are many additional layers to an anti-reflective coating which helps it's performance, and it is these invisible layers which make anti-reflection coatings either a nightmare or a dream. I have separated the layers below to allow you to appreciate what is involved in the best anti-reflection coatings, such as the Nikon Seecoat Plus UV or the Zeiss Purecoat Plus. Cheaper lenses will obviously omit certain layers and it is up to individual lens manufacturer to decide what to compromise on to keep the cost low for the consumer. 

Anti-reflective Technology
Lenses without anti-reflective technology reflect a significant amount of light. Surface reflections from lenses can distract the wearer and even interfere with vision, particularly in low-light conditions like night driving or when performing intensive visual tasks like computer use. The anti-reflective technology helps reduce reflections to less than 1% of the incident light — compared with 7% to 13% for uncoated lenses.

Scratch-resistant Technology
Plastic lenses help make glasses lighter and more comfortable, but they’re much more prone to scratches than glass lenses. The scratch resistant technology varies depending on the lens manufacturer with some lenses easier to scratch than others. This technology helps keep lenses from developing scratches from cleaning and normal wear and tear. 

Anti-static Technology
Dirt and dust can cling to traditional untreated lenses, reducing vision quality and leading to scratches when cleaning. The anti-static element in premium coatings helps repel contaminants like dust and debris.

Hydrophobic and Oleophobic Technology
Grease, water, and oil will more readily slide off the surface of lenses treated with this super-slick coating, so the lenses are easier to clean and stay clean longer.

UV Blocking Technology
We all know UV can damage our skin. But what about our eyes? UV can seriously damage your vision. Normal UV protection helps shield your eyes from rays that pass through the front of your glasses. The Nikon Seecoat Plus UV goes further, protecting your eyes from UV light reflected off the back surface of your lenses too.

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    Author: 
    Jay Patel

    Jay is an optometrist with over 10 years experience in both hospital and high street practice.

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  • Home
  • Eyecare
    • Eye Examination
    • NHS Sight Test
    • Retinal Photography
    • Childrens Eyecare
    • Glaucoma
    • Age Related Macula Degeneration
    • Cataracts
  • Eyewear
    • Frames >
      • Childrens Frames
    • Lenses
    • Contact Lenses
  • About
    • Who we are
    • Where we are
    • News
    • Blog
    • Our Future
  • Contact Us
  • Your Feedback
  • Covid -19