Did you know that sunglasses protect you from the sun’s harmful rays? Many people wear and buy sunglasses as a fashion accessory, but this is not the only reason you should buy them. While sunglasses are indeed an awesome fashion accessory, even the reason you must wear them is primarily to protect your eyes against the harmful effects of ultra violet light. Ultraviolet rays can damage your eye tissues and even cause blindness. This is why it is vital that you buy sunglasses with 100% protection from UV rays.
When shopping for sunglasses online, it is important to understand how each pair of shades works to provide UV ray protection. First, you must buy a frame made from UV resistant material. It is important to note that even “nano” sunglasses work well when properly designed and manufactured. Typically, sunglasses use a metallic outer frame around a lens that has anti-ultraviolet (UV) glass. The actual lens is usually constructed from a hard plastic polycarbonate material.
Sunglasses provide protection when you are not using them. However, this protection is only effective if the sunglasses block out all of the sun’s radiation. One way to achieve this is by having the correct lens design. Glasses used in sunglasses have three basic designs – bifocal, trifocal, and progressive. Let’s take a look at each type and how they provide UV ray protection.
Bifocal sunglasses protect you from UVA/UVB rays while keeping the design classic. You may opt to buy sunglasses with an extended lens case or to buy a custom-made one. In addition to being protected from UV rays, bifocals also provide superior color visibility because they block out all portions of the spectrum. This is because the thin film of plastic between the lens and the frame is thin enough to allow only the lightest portions of the spectrum to enter.
Some people want their eyes to look normal even while outdoors. When that’s the case, it is important to buy prescription sunglasses online with large lenses. Larger lenses block out more of the Ultra-violet (UV) rays than thinner ones. Brands like Oakley, Ray Ban, and Maui Jim all make pairs that feature large lenses for this situation. If cost is a concern, you might also want to consider buying a pair that are polarized.
When you buy sunglasses, it is important to think about the shape of your face. Each type of frame style provides unique benefits. Oval frames offer a narrow, square-shaped face. Round, oval, and rectangular frames fit most faces. Those who have longer noses should consider curved shades since those tend to elongate the nose.
If you know what styles suit you best, it is easier to buy a pair that fits your budget. There are many retailers that offer discounts on many styles. You can usually find a great price on new frames by purchasing them at the end of a season. Retailers that offer discount sunglasses offer great customer service and warranty coverage so that you can receive your sunglasses quickly and in the event that they break. Since many people buy several pairs of sunglasses, shopping online saves you time and money.
If you know exactly the size and shape of your frame, it is easier to compare prices online. However, if you are still unsure, be wary of stores that offer you an unrealistic length or diameter of the lens. Your best bet is to buy a pair of designer sunglasses. Those are typically made of higher quality materials and constructed with extra care. The extra money you spend will be worth it in the long run because you’ll have years of use from your favorite pair of eyewear.