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What is an AR coating or Anti-Reflective coating on spectacles?
An anti-reflective coating, AR coating or anti-glare coating is a thin film that is added to the surface of spectacle lenses that allows more light to pass through the lenses.
Why is it necessary?
When you don't wear glasses, 100% of available light enters your eye. When you put glasses on, the light hits the lens, most of the light goes through, but not all. A lens has two flat surfaces, the front and the back. When light waves encounters a flat, transparent surface, some of the light always reflects back instead of going through. So with two flat surfaces, first some light is lost on the front, then more reflects from the back and even gets trapped in the middle between the font and back surfaces. In fact, up to 12% of the light that enters your lens does not make it into your eye due to reflection. Anti-reflective coating uses the same technology as high quality cameras and binocular lenses to allow at least 96% of the light through the lens.
Benefits of AR coatings
If you wear glasses and regularly experience glare, light reflections, or halos around light sources at night, you will definitely benefit from getting a pair of anti-glare glasses.
Essilor is a world leader in prescription lenses, they are committed to providing solutions and protecting vision. Essilor has different anti-reflective coatings for different applications namely Crizal® Sapphire™ UV,
Crizal® Prevencia™ and Crizal® drive
Anti-reflective lenses mean fewer headaches and less eye fatigue caused by reflections from computer screens and daytime lights.
Providing protection against reflection, scratches, smudges, dust, water, UV and other enemies of clear vision, Crizal® anti-reflection lenses can help you see better, look better, and feel better.
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