Sunglasses are the spectacles that are mostly wear by the people in order to protect their eyes from the sun rays. Since 1950s, sunglasses are in great demand. Earlier, almost people sunglasses when they are going to beach. At present, every body likes to wear sunglasses. Some people wear sunglasses in order to protect the eyes from bright lighting while some people use sunglasses for comfort and for clear vision.  Now days, sunglasses are a mark of fashion, style and trend. Sunglasses are like by the every walks of people. Sunglasses are also used by the people during riding, flying and skiing in order to protect the eyes. Many celebrities and film actors also go or particular sunglasses just for fashion. In almost all movies, actor and actress are seen with different style of sunglasses. Men and women equally like to wear the sunglasses. Sunglasses are available in different sizes and in different colors. Ultraviolet radiations when direct enter into the eyes can cause many eye problems as snow blindness, cataracts, eye cancers, photokeratitis and many more. These sunglasses are also used in various sports. In 2003, Onassis sunglasses are very popular and wear by most of the women. These sunglasses are of large size. Many doctors also wear special type of sunglasses while doing laser therapy or any other special operation. Sunglasses are also popular by some other names as glares, sun spectacles, spekkies, sun specs, sun shades, dark glasses, sunnies, specs, smoked spectacle, shades, solar shields, hater blockers, locs and cheaters.

Many new shades have been added in the collection of the sunglasses after a gap of few days. Sunglasses also play a very important role during cataract. There is a special type of sunglasses known as Aviators, with oversized lens and special thin metal frames are made for the pilots and military people. Many models in many fashion shows wear sunglasses of various styles. For police officers, special types of sunglasses are available called Mirrorshades with two popular styles, in which dual lenses are set in special metal frames.  The frames for sunglasses are made up of metal, nylon or metal alloy. In sports, nylon frame sunglasses are more popular because they can easily bend. Models mostly go for the frames made up of metal. Each frame has held the lens in different way. Some frames are very delicate while some frames are strong and durable. During eye examination, patients have to wear disposable sunglasses.

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Reading glasses have been seen from the many last years. Reading glasses are just like a boon for the people. It is because only of the reading glasses that the person who have quite weak vision can also able to seen a clear vision with the help of required reading glasses. At present, many people use the reading glasses to their weak eyesides. Reading glasses are set in frame and when a person wears the frame then he is able to see clearly all the things. There are various frames available in the market for styling the reading glasses in the frames. Frames available are full frames, half frames and a model without frame. Each frame is available in different sizes and in different weights.  Glasses made of glass are quite cheaper as the glasses made up of plastic. There are separate frames available for the men, women, children and for old person. Countless frames are available in the market. Some old persons who want a durable, strong, big frame have to choose a full frame. Young students, think that the speaks as a symbol of fashion. They choose fashionable frames. Glasses are available in both spherical and in cylindrical numbers. Reading glasses are quite comfortable in wearing and removing. People choose a frame which they think that suits with their features and their work. Colored reading glasses are also available in the market. In every city, there are a number of optical shops are seen and in each shop there is a huge selection of eye glasses are there. Glasses are rated for lower as well as for higher rates. With reading glasses a number of things are also linked as eyeglasses cases, eyeglass holders, chains, mirrors, magnifiers, cleaning clothes and lens cleaners.  The person have a weak eyesight firstly has to check the eyes and confirm the number from the doctor. Afterwards choose a frame as per his choice.

There are many companies which make eyeglasses. Princeton started before 100 years back and makes hand crafted rim shaped spectacles that works best for persons have medium face shapes. Oxford is another company, and make frames which offers educated and classic look. These frames are in circular shape and have a black and tortoise finish. Archive III is a brand which is popular from 1949 and is defined by the  Harry Truman and horn rimmed glasses. This company makes glasses of such a shape that provide comfort with silicone nose pads and spring hinges as well as provides a fashionable look to the person.

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Eyes are one of the important organs of our body. The vision of eyes must be right and good. Contact lenses are the optical devices used in place of the simple glasses to see a clear vision of the things. When the lenses have been introduced then only lenses of glass were available. Sometimes, these lenses cause the irritation in the eyes.  Contact lenses are allowed to wear for a limited duration of time. Lenses are either composed of the transparent plastic or of glass. Contact lenses are available in different colors. At present, very few people like to wear glasses, most of them want to go for contact lenses as the lenses are invisible and also very lightweight. There are a lot of reasons for wearing the contact lenses as some people wear the lenses as to offer a different and attractive look, some want to see their eyes with different color and so on. Contact lenses can be classified into various types as corrective contact lenses, cosmetic contact lenses, therapeutic lenses many other types as per constructional material. Corrective contact lenses are used for the purpose of clear vision. Corrective contact lenses are required to neutralize the mismatch between the refractive power and the length of the eye. Second one is the cosmetic contact lenses, these lenses are used by the people to change the appearance of the eyes. Next are the therapeutic contact lenses which are mostly used for the treatments of some of the disorders of the eyes. These lenses are used for the treatment of conditions like comeal ulcers, dry eyes, bullous kertopthy, comeal ectrsis etc. Simple lens includes single optical element while in a compound lens with common axis many lenses are arranged in an array.

 Contact lenses are available in various sizes. A lens solution is available for the lenses by the help of which one has to regular wash the lenses with the help of the solution before keep the solution inside the lens case. At present, lenses are existing for both daily wear or for continue night wear. Dailywear lenses are allowed to wear during day time, don’t during sleeping while continue overnight time can be easily wear for about whole day and around six nights. As the way of designs differ the use of the lens. Lens for both spherical and cylindrical numbers are available. Lenses are designed in such a manner that their orientation is maintained. While using lens, one has to have full knowledge about the usage insertion, removal and care of the contact lenses.

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