Eye Health

Updated 14 March 2018

Anti-reflective coatings

Advanced lens coating technology allows crystal-clear vision in any weather, it repels dirt and simplifies lens maintenance. It can even enhance the appearance of your eyeglasses.

Advanced lens coating technology allows crystal-clear vision in any weather, it repels dirt and simplifies lens maintenance. It can even enhance the appearance of your eyeglasses. Zeiss coatings turn every lens into a small masterpiece, combining practicality with pleasure.

Anti-reflective coatings: Lenses that do not have anti-reflective coating comes with a fundamental disadvantage: they produce clearly visible light reflections that can cause vision problems.

These light reflections are particularly disruptive on wet roads or while driving at night, but also in face-to-face conversations when people looking at you see glare or their own reflection in your glasses instead of your eyes.

Anti-reflective coatings give you the clearest, sharpest vision, make your eyeglasses more attractive and allow others a clearer view of your eyes. 

The performance of the anti-reflective coating is judged by how efficient it is at reducing reflections. Anti-reflective coatings come in various performance levels, and can be combined into various upgrade packages (such as coating that repels dirt or filter tints).

The best anti-reflective coatings reflect less that 1% of the light that reaches them, compared to 7 to 13% for uncoated lenses. The remaining reflections will be seen in a subtle but distinctive colour – usually blue with advanced Zeiss coatings.

Vision without anti-reflective coating.

Vision with anti-reflective coating

Scratch-resistant coating

A scratch-resistant coating is a must for plastic lenses. Although plastic lenses are light, comfortable and easy to wear, they are also softer and less resistant to scratches compared to uncoated glass lenses.

A special coating greatly increases the scratch resistance of plastic lenses, thus maintaining constant vision quality and prolonging the lifespan of your spectacles. Plastic lenses from Carl Zeiss Vision are always available with a high-quality scratch coating, regardless of the specific material.

Plastic lenses without scratch-resistant coating.

Plastic lenses with scratch-resistant coating.

Lenses that stay cleaner for longer

Anti-reflective coatings look clearer than ordinary lenses, so dirt and smudges are more obvious. It’s very important that an anti-reflective coating be easy to clean. 

Premium Zeiss anti-reflective coatings feature a top layer that repels water and the oil that makes up a fingerprint or smudge. As a result, cleaning your lenses is a breeze.

Lenses without a hydrophobic topcoat.

Lenses with a hydrophobic topcoat.

(Carl Zeiss Vision/ September 2010)


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Megan Goodman qualified as an optometrist from the University of Johannesburg. She has recently completed a Masters degree in Clinical Epidemiology at Stellenbosch University. She has a keen interest in ocular pathology and evidence based medicine as well as contact lenses.

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