Modern days. sunglasses are now more used for fashion than the blocking of sunlight rays, well, probaly some people bought sunglasses for fashion and the uses.
And here, I'll be bouughting you guys some interesting facts about sunglasses:
1.People Have Worn Sun-Blocking Eyewear For About 2000 Years
Wow, never thought that sunglasses have such history. These sunglasses are used by the eskimos to protect themselves from snow blindness. Thanks that sunglasses have evolved, not much people want to wear these sunglasses right?
2.Chinese Judges Wore Sunglasses In Court During The Middle Ages
By wearing the sunglasses, the judges can maintain "poker face" more easily. Sunglasses are used for them to hide their expression while questioning witnesses. It doesn'st correct vision, instead these spectacles are worn purely for the psychological effect.
3.Polaroid Cameras And Polarized Sunglasses Came From The Same Inventor
Edwin H. Land, brilliant inventor and founder of the Polaroid company, developed a lens filter to reduce glare. Since 1937, this polarizing technology has been used not only for sunglasses, but also in planes, windows, and LCD screens—just to name a few.
Humans surely need protection from sunglasses to prevent damage to the eye.
That is probaly why sunglasses are invented. Protecting your eyes from the sun is essential to maintain a healthy vision.