Sunglasses in almost every form are made with one aim in mind, to protect the wearer from sunlight and other high energy light that could be seen by the naked eye. The bright light of the sun during the day could be a source of discomfort and in cases of prolonged exposure could damage the eye.
There are many different types of sunglasses today they have been tailored to different needs and specifications. There are polarized or darkened lenses, colored glasses, anti glare etc. The term sunglasses has evolved over the years and was previously known in the US as Sun cheaters
Whenever you are outdoors it is highly recommended by healthcare professionals that you have on some kind of protective sunglass to shield your eyes from direct exposure to UV or ultraviolet light and blue light.
Today, sunglasses, like the oakley brand, have made their way into fashion and have become a fashion statement. Whether the sun is out or in the dark of night people are seen wearing sunglasses. You can hardly see a celebrity being interviewed without some form of sun glasses covering their eyes. It could be as a result of shyness or just to throw people off from what they are focusing on. Movies stars, celebrities, musicians and even the law enforcement agents have sunglasses as a permanent fashion accessory.
There are many different types and brands in the market today, Aviators,clip on, mirrored, oversized, polarised, wayfarers, teashades, wrap around sunglasses etc. It depends on favorite preferences and what you are trying to convey.