Glasses with polarization, or, as they are also called, anti-glare glasses, not only save from bright light. They help the eye more clearly recognize the image illuminated by the sun's rays, while correcting all distortions that have arisen.
About polarization
Reflecting from various surfaces, the rays can continue their path in the vertical or horizontal direction. In the first case, the human eye can easily distinguish objects surrounding it. Horizontal rays partially overlap the image, forming glare. To eliminate light distortion, glasses with polarization are used. What it is, it is easy to understand if you imagine a kind of filter that blocks horizontal rays.
A polarizing surface is a material coated with a thin protective film. Once on the surface layer, ultraviolet rays are absorbed by it. As a result, a person sees only vertically directed light waves that do not interfere with the vision of objects. The absence of horizontal rays reduces the brightness and increases the contrast of the image, thereby reducing eye strain.
Who needs anti-glare glasses
The most common polarized lens consumers are motorists. Due to the risk of accidents, they simply need perfect visibility while traveling. Polarized goggles for drivers eliminate visual disturbances such as glare from the windshield, dashboard, wet asphalt and even the glare of headlights. When using lenses that absorb ultraviolet rays, a motorist can easily see all objects on the road, even on a sunny day. In addition, experts have proven that polarizing glasses significantly increase the driver’s reaction.
The second group of contingent involved in the use of special protective lenses is fishermen. As a rule, bright sunlight leaves strong glare on the surface of the water. Therefore, many avid fishing enthusiasts began to use polarized sunglasses while fishing. What does this give them? Anti-glare glasses provide excellent visibility of the water surface even on the clearest noon.
Polarization plays an important role in the lives of athletes. Sunlight can interfere with surfing or skiing. This is completely unacceptable, because the lack of good visibility is unsafe for athletes and often causes injuries.
The benefits of polarizing glasses
Sunglasses with polarization have a number of positive properties. The undeniable advantages of anti-glare lenses are that they:
- Reduce the load on the optic nerves.
- Protect eyesight from the harmful effects of ultraviolet rays.
- Improve visibility by reducing brightness.
- Keep a natural color rendition.
Negative moments
In principle, polarization lenses have no drawbacks and cannot be. They are convenient to use and absolutely safe for sight. Only the following points can be highlighted as minuses:
- Quality anti-glare lenses are much more expensive than regular glasses. The price of such products can make the buyer give himself a pretty penny.
- On inexpensive glasses, a thin polarizing layer is usually applied. During operation, it quickly becomes unusable and begins to exfoliate.
- Sometimes driving glasses distort the image on the navigator screen.
How to choose polarizing glasses
It is not possible to purchase universal glasses with polarization, suitable for any conditions. When choosing anti-glare lenses, experts recommend starting from their color. For example, motorists should give preference to at least two options. For day driving, brown or copper glasses with polarization are suitable. That this gives special advantages has been proven by many users: the image contrast is reduced, as a result of which the eye muscles relax. In addition, brown-tinted lenses absorb UV rays better than others. To stay behind the wheel in the evening, you should choose a separate model. The ideal choice would be products with yellow lenses.
As for fishing, you can purchase one model of glasses for this lesson. Gray lenses will do their job perfectly. They are especially suitable for those who are fond of fishing in deep water. And for fishing on a hot clear afternoon it is better to give preference to glasses with green lenses.
Polarization check
Not all manufacturers produce high-quality and genuine goods, so it is very important to know how to check the polarization of glasses. Understanding if your model is really equipped with anti-glare lenses is easy. To do this, just bring the glasses to any LCD monitor. If you turn the polarizing lens at an angle of 90 ° to the display, the image will sharply darken. For glasses without anti-reflective coating, this experiment will not work - through the glasses you can still clearly see the monitor. Also, instead of a liquid crystal screen for authentication, you can use one more glasses with polarization. Normally, the effect should be the same - one of the lenses will darken.
Tips for wearing regular glasses
In the presence of visual defects, it is more difficult to wear polarized glasses . That this is a huge problem cannot be said, but still the use of anti-glare lenses in this case is a little expensive. It’s just not possible to get polarized glasses - they are not designed for vision correction. There are two ways to fix the situation: by wearing contact lenses or using special anti-reflective pads. The first option is quite financially disadvantageous, since it requires regular expenses. In addition, some people simply do not feel comfortable wearing lenses all the time.
A much more profitable option is to purchase anti-reflective pads. They can replace polarized sunglasses. What kind of products is not known to everyone. The polarizing pad is a design of two anti-reflective lenses, which is attached to ordinary glasses. This is very convenient - the product is easy to put on and take off, without causing any discomfort to the user. It is better to give preference to models with fastening on the nose, as they are most convenient to use. An ideal choice would be a lining designed specifically for driving.
Sun lenses are designed to protect the human eye from the harmful effects of ultraviolet rays. However, only polarized glasses can handle this task. What does this mean? Polarized glasses are a marvel of technology compared to conventional sunglasses. For simple mods, they are not so useful, but for lovers of an active lifestyle, they are indispensable.