Are you ever unexpectedly blinded by a powerful light beam, reflecting off a piece of glass or metal? This condition can be extremely dangerous often, for instance, when one is driving. You may also wear sunglasses, but they will remove those sudden glares in those dim overall light. This is where polarised sunglasses join and save the day!
Polarized sunglasses are, in the simplest terms, glasses that reduce blinding glare. Polarized sunglasses are glasses coated in a chemical film that absorbs horizontal light waves in somewhat more complicated terms-the light waves responsible for glare. The effect is no more blinding light moments and absolute clarity in one’s vision.
The dangerous glare occurs when rays of sunlight are mirrored on a flat surface, which appears to go in all directions. These rays are only sent in one direction, making them much more powerful.
The polarised sunglasses lenses themselves are made of polyvinyl acetate, which is dipped into iodine. When those magnified rays pass through those lenses that have been “polarised,” since they only come from one direction, the lenses can either partially or fully remove them.
Wearing polarised sunglasses provides many advantages. The obvious ones are that reflective sunglasses minimize glare, and make sure you are not experiencing sudden momentary blindness due to a stray light beam. The UV defense they provide is also highly beneficial to eye health in the long term.
Besides that, the same ability to absorb light also can make one ‘s vision much clearer. Often when the sun is too high, everything we see in front of us becomes overwhelmingly coloured, to the point that information can disappear completely.
It’s pretty easy to tell if the lenses are polarised. Thus you can monitor whether or not your sunglasses are polarised:
Although once polarised sunglasses were burly fishermen’s domain, nowadays, they are available in various chic designs! All the classic Ray-Ban sunglasses, for example, are also available with polarised lenses, so you can rock polarised sunglasses without anyone even noticing.
Seeing a bit of glare in some sports will help you to know if a dangerous surface is coming up – particularly, icy or wet surfaces. This means that it will be better to wear standard sunglasses for skiing, snowboarding, or cycling and motorcycling in wet weather, which will minimize the light intensity but will still allow you to know when a wet or icy patch is coming up.
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