Trends in fashion have changed rapidly over the years. People, who earlier used to wear designer flashy and vibrant clothes, now prefer to have colors that are subtle and suit their moods. Similarly, one can observe a similar trend happening with regards to accessories, particularly sunglasses. Use of polarized sunglasses has become the latest fashion craze in U.S. Also, these types of sunglasses seem to go well as a fashion accessory with kids, adults and people of every age group.
Iris is an intricately designed part inside the human eye with a natural ability to block the penetration of excess light from getting into the eye. However, with gleaming sunlight, even the iris of the eye becomes non-functional. Designed specifically to absorb the reflection of the sun emitting from transparent and flat surfaces such as water and snow, polarized sunglasses are primarily used by fishermen, divers, and skiers so as to ensure a clear vision under the water or up in the sky. These sunglasses are primarily made of polarized lenses that were discovered in 1936 by Edwin H. Land. Polarized lenses are specialized lenses capable of polarizing the reflected light, thereby making it vibrate only in one direction. In fact, polarized lenses can absorb almost 97% of the reflection and are an extremely useful safety device even for marine navigators and professionals practicing aquatic sports.
Usage of these is specifically recommended for individuals suffering with eye-related disorders such as hypermetropia and presbyopia. In the recent years, these sunglasses are becoming increasingly popular among joggers, walkers, athletes and even other sports enthusiasts. Even while driving during nights, wearing polarized sunglasses can be extremely helpful as they can effectively reduce the amount of glare reflecting from the top of the car glass. As a result, one can easily avoid getting frustrated during driving, prevent any untoward incidents or dangers and ensure a safe journey.
On the contrary, there are also certain disadvantages of polarized sunglasses that are often ignored, particularly when moving through snow-covered surfaces. Often users find polarized sunglasses ineffective as it becomes difficult to differentiate between ice patches and moguls while practicing sports such as downhill skiing as a result of sunbeams reflecting from the snow. In particular, it can be extremely dangerous to have polarized lenses when skiing on thin ice. Secondly, it is also predicted that they can react with polarized light present in Liquid Crystal Displays (LCDs) that are commonly found either on the car dashboards or digital screens on ATMs, thereby rendering them indiscernible to view.