– To practice outdoor sports: sailors, fishermen, golfers, cyclists, runners, athletes for water sports;
– For extreme sports: mountaineering, climbing, trails, skateboarding;
– To drive;
– To travel;
– To leave in the sun or very bright place;
– It can be used as a post-surgical cataract surgery.
And when not to use?
For some sports and activities, polarized lenses are not indicated. Like for example:
Skiing – Ice stains reflect more light than snow, wearing polarized lenses will disrupt viewing, so it will be harder to identify to divert.
Road with ice or frost – For the same reasons above, because with the glare of the ice it is possible to avoid an accident.
Viewing images on LCD screens – Difficult to view cell phones, GPS devices, TVs or other flat screens with LCD screens.
Types of Polarized Lenses
0.75 mm polarized lenses
These polarized lenses are made from thin film sheets and are the best option when you do not have to worry about impact resistance. The .75mm lenses are good for most casual sports such as running and golf.
1.1 mm polarized lenses
These polarized lenses are made with thicker sheets of film. They offer more impact resistance than .75mm lenses, but they have the same polarizing layer. Even though 1.1mm film is thicker, these sunglasses do not offer a better reduction in brightness or superior polarization, but they protect more for sports sports with direct view to the sun, such as archery.
While sunglasses are great for reducing glare, they do not eliminate glare like polarized glasses. Do not let darker lenses fool you into thinking that they offer more protection against UV rays, too. The darkness of the lens does not accurately represent the ability of the lens to block UV rays.
Always check the label on your lenses to see the level, if any, of the UV protection they offer. Also, remember that sunglasses without UV protection will cause more damage to your eyes than not wearing sunglasses at all. Darker shades can cause dilation of the pupil, leaving more UV rays inside the inner part of the eye.
Are there clear polarizing lenses?
No, because they would decrease the intensity of non-polarized light by at least half. Due to the alignment of the parallel line of iodine crystals, if they were clear they would not block light in a specific direction.
How do I know if my glasses are polarized?
If you want to see the difference polarization does, get out on a sunny day and take two pairs of sunglasses (one polarized and one not) and compare the view through the lenses of each pair. You will find that polarized glasses provide greater clarity, which allows you to see details. The view will be a bit darker through polarized lenses, but the image will be less faded and reflective.