Anti-reflection, polarized sunglasses

Sunglasses with polarization or without?

When buying sunglasses, always choose sunglasses with coatings that protect the eye and improve vision comfort. This rule applies to both sunglasses and corrective glasses. Among the many coatings applied to lenses, you will also find this polarizing one.

What is polarization? The vertical rays of light make people see colours, shapes and images. Light running horizontally is responsible for the glare and reflections. The polarization filter is designed to straighten the light wave and not to allow other than vertical. This process removes unnecessary reflections from the field of view. The polarization coating makes the lens let through only simple, polarized light, so the image is clear.

What is an anti-reflection coating? It is a kind of filter that improves the quality of the lens. It is designed to reduce the number of light reflections, thus influencing its transparency. Improves the aesthetics of vision and increases contrast. In addition, this layer protects the lens from scratching. It may also have hydrophobic, oleophobic and antistatic properties. Lenses get dirty less often, which provides better comfort of use.

How we can check if glasses are polarized or not?

The glasses polarization test can be carried out easily. After wearing glasses with this coating, the image seen by them must be more sharp and saturated, e. g. the sky is slightly darker and the grass around it more juicy.

Polarization doesn't hypocrite the image you see. You see the world blurred and slightly more blurred because water molecules float in the atmosphere, reflecting the sun's rays in directions unfavourable to the human eye. The polarization filter in the lens protects against this phenomenon. If you're wondering whether or not to buy Ray Ban polarized glasses, the answer is simple: having this filter makes viewing comfort much better than using lenses without this convenience.

When does polarization come in handy? Glasses - how to check the quality of the coating?

Lenses with a polarizing filter are perfect for the following situations:

• when you drive in rain, sunshine or other difficult weather conditions,
• when skiing or winter walks, because the light is reflected by the snow,
• in water sports, because the coating minimises water reflexes,
• when you spend a lot of time in the sun, for example, on vacation,
• if you have a vision correction, including astigmatism, and you want to be able to see well even in bright light. Polarization can be used not only in sunglasses, but also in corrective glasses,
• if you want your eyes to be protected from the harmful effects of the rays UV-A i UV-B. 

Don't you know if your glasses have a polarized coating? Put them on and answer your questions:

• Are the colors more vivid?
• Can you see more clearly?
• Aren't you blinking your eyes?
• Do you feel more confident behind the wheel?

If the answer to these questions is yes, it is a sign that the polarization coating in your glasses is of good quality. Remember that it is always worthwhile to check with the seller to see if the model you are using has this protection. Wearing glasses without adequate protection can permanently damage your eyesight.

Advantages of polarized lenses:

THEY ELIMINATE  LIGHT REFLECTIONS

THEY INCREASE  BRIGHTNESS OF VISION

THEY DECREASE  EYE TIREDNESS

THEY INCREASE  CONTRAST