For many years, people have devised ways to protect their eyes from strong sunlight one way or another. Back in 12th century China, early models of sunglasses were devised to reduce sun glare and also conceal a person’s identity in court. Much later, more modern styles of both eyeglasses and sunglasses were devised, and today’s models are the most stylish, durable, and effective sunglasses of all. But these handy devices may sometimes get damaged or worn out, so replacement lenses may be needed. If the lenses are cracked, a person can visit a retailer to request replacement lenses, or even get replacement lenses online. Anti glare technology is common to sunglasses, and night vision lenses and more should be swapped out for new ones right away if they are impaired somehow. Polarized lenses can even be crafted to fit a person’s eyeglasses prescription, if need be.
Development of Sunglasses
Eyeglasses have existed for hundreds of years, but it was in the 1930s when sunglasses are we know them now were developed. In the years leading up to World War II, a Mr. Edwin H. Land used his expertise with Polaroid and lens crafting to develop the world’s first polarized sunglasses lenses. For the first time, sunglasses not only reduced glare from the sun’s rays, but also reduced the amount of polarized light that reach the eyeballs, easing strain. These new sunglasses proved very useful for airplane pilots in particular. In 1936, Ray-Ban designed the first anti-glare aviator sunglasses, incorporating Mr. Land’s polarized lens tech. These aviators also had their distinctive drooping frames, designed so that a pilot didn’t have to expose his eyes to sunlight when looking down at his instrument panel. These aviators proved successful, and they are even used in everyday wear as stylish and distinctive personal accessories.
What do sunglasses look like? They all have two lenses and a frame to hold them, but today’s sunglasses come in a fun variety of shapes and materials based on personal sizes. In fact, the lenses themselves may be different colors, such as gray or brown, and the frames may be made of plastic or wire. The shape of the lenses may var y as well, and these elements and more mean that a modern pair of shades can look like nearly anything. Sunglasses vary in how strongly they can resist and block UV light; more stylish models block a moderate amount, while work sunglasses are required to be tougher. Some outdoor jobs may require wearing strong sunglasses, such as in summer or even in winter. After all, “snow blindness” is the result of reflected sunlight bouncing off of snow and ice and into a person’s eyes. Those who work or play sports around snow are urged to wear sunglasses to prevent such eye problems.
Sunglasses might even have special features, or be decorated. Some people may add little decorations to their sunglasses frames such as sequins on thick plastic models, and some retail models have bonus features as well. In fact, Oakley, back in 2004, came out with what they named Thump. These sunglasses had a built-in digital audio player, and Oakley didn’t stop there. In 2005, the company devised the Razrwire model: sunglasses with a built-in wireless cell phone system. These fun accessories show just how popular sunglasses are, that a company can invest in such technology on shades.
Sometimes, sunglasses can be built with a person’s existing eyeglasses prescription in mind. These specialized sunglasses will correct the wearer’s vision while serving fully as sunglasses, making them very convenient. Their design can be modified according to the customer’s interests, and can have plastic or wire frames and different colors for the lenses.
But no matter the model, sunglasses might sometimes get damaged. They might get dropped or sat on, and lenses may fall out or get cracked, or shatter entirely. When this happens, replacement lenses can be found at a local retailer or eyeglasses shop if that’s where th4e customer got them. In other cases, a customer can pack up their damaged sunglasses and send them right to the manufacturer or even order replacement lenses to be sent to them.