Provato Eyewear - Sunglasses Store Online

1. Provato Eyewear Sunglasses or sun glassesare a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from damaging or discomforting the eyes. In the early 20th century they were also known as sun cheaters

2. History of Sunglasses In prehistoric and historic time, Inuit people wore flattened walrus ivory "glasses," that came with narrow slits that block harmful rays of the sun . First Sunglass in History Which Protect the eyes from Snow…. Inuit snow goggles function by reducing exposure to sunlight, not by reducing its intensity

3. Modern developments In the early 1900s, the use of sunglasses started to become more widespread, especially among movie stars. It is commonly believed that this was to avoid recognition by fans, but an alternative reason sometimes given is that they often had red eyes from the powerful arc lamps that were needed due to the extremely slow speed film stocks used Foster in 1929. Foster found a ready market on the beaches of Atlantic City, New Jersey, where he began selling sunglasses under the name Foster Grant from a Woolworth on the Boardwalk

4. Functions of Sunglasses Visual clarity and comfort Sunglasses can improve visual comfort and visual clarity by protecting the eye from glare. Various types of disposable sunglasses are dispensed to patients after receiving mydriatic eye drops during eye examinations. The lenses of polarized sunglasses reduce glare reflected at some angles off shiny non-metallic surfaces such as water. They are popular among fishermen because they allow wearers to see into water when normally only glare would be seen. The glare is neutralized by blocking the vertical (magnetic) components of light.

5. Functions of Sunglasses Protection of Eyes from many Factors Sunglasses offer protection against excessive exposure to light, including its visible and invisible components. The most widespread protection is against ultraviolet radiation, which can cause short-term and long-term ocular problems High-energy visible light (HEV) has been implicated as a cause of age-related macular degeneration. before, debates had already existed as to whether "blue blocking" or amber tinted lenses may have a protective effect. Sunglasses are especially important for children, as their ocular lenses are thought to transmit far more HEV light than adults

6. Special use sunglasses Sunglasses in Sports - Sunglasses have to meet special requirements when worn for sports . Strap or other fixing is typically used to keep glasses in place during sporting activities, and they have a nose cushion . Mountain climbing or traveling across glaciers or snowfields requires above-average eye protection, because sunlight (including ultraviolet radiation) is more intense in higher altitudes, and snow and ice reflect additional light. Popular glasses for this use are a type called glacier glasses or glacier goggles. They typically have very dark round lenses and leather blinders at the sides, which protect the eyes by blocking the sun's rays around the edges of the lenses.

7. Type Of Sunglasses Aviator sunglasses - are a style of sunglasses that were developed by Bausch & Lomb and branded as Ray-Ban. They are characterized by dark, often reflective lenses having an area two or three times the area of the eyeball, and very thin metal frames with double or triple bridge and bayonet earpieces or flexible cable temples that hook behind the ears. The original design featured G-15 tempered glass lenses, i.e., neutral gray, transmitting 20% of incoming light. The large lenses are not flat but slightly convex. The design attempts to cover the entire range of the human eye and prevent as much light as possible from entering the eye from any angle Aviator sunglasses, or "pilot's glasses", were originally developed in 1936 by Ray-Ban for pilots to protect their eyes while flying.

8. Type Of Sunglasses Oversized sunglasses - Oversized sunglasses, which were fashionable in the 1980s, are now often used for humorous purposes. They usually come in bright colors with colored lenses and can be purchased cheaply. Singer Elton John sometimes wore oversized sunglasses on stage in the mid-1970s as part of his Captain Fantastic act. In the early 21stcentury moderately oversized sunglasses had become a fashion trend. There are many variations, such as the "Onassis", discussed below, and Dior white sunglasses.

9. Type Of Sunglasses Teashades - "Teashades" (sometimes also called "John Lennon glasses", "Round Metal", or, occasionally, "Granny Glasses") were a type of psychedelic art wire-rim sunglasses that were often worn, usually for purely aesthetic reasons, by members of the 1960s counterculture, as well as by opponents of segregation. Pop icons such as Mick Jagger, Roger Daltrey, John Lennon, Jerry Garcia, Boy George, Liam Gallagher and all wore teashades. The original teashade design was made up of medium-sized, perfectly round lenses, supported by pads on the bridge of the nose and a thin wire frame. When teashades became popular in the late 1960s