A contact lens, or simply contact, is a correctional lens placed on the eye. They are considered to be medical devices and can be worn to correct vision, for cosmetic or vision correction related reasons.
In 2004, it was estimated that 125 million people (2%) used contact lenses worldwide. In 2010, worldwide contact lens market was estimated at about $6.1 billion. Some have estimated that the global market will reach $11.7 billion by 2015. As of 2010, the average age of contact lens wearers globally was 31 years old and two thirds of wearers were female.
Contact lenses have been all over the place for more than a few hundred years. During that time, a lot of advancement allowed just about everybody to wear contact lenses. Contact lenses, similar like eyeglasses, can correct your visionary defect such as nearsightedness, farsightedness and astigmatism. While some people today enjoy making a fashion statement with eyeglasses, others prefer their appearance without them. Contact lenses can achieve this without permanent refractive operation. Contact lenses can also provide a full field of open vision, which is great for sports and other adventurous activities. Nowadays there are many contact lenses available in the market meeting the fashion front and competing with the orthodox sunglasses. These lenses are specifically tinted to give the colored effect; color lens.
Probably one of the greatest advantages to using contact lenses is the fact that they can drastically change the appearance of one's eyes. Since the user wears them in direct contact with the eyes, tinted or color lens can change one's eye color and bring about a significant character change. One can use colored lenses to change one's eye color to blue, green, hazel, violet, honey, brown, amethyst, turquoise, gray and many intermediary shades. While the color change is only transitory, it is certainly vivid. This makes color lens, with or without vision-correction features, very useful in filmmaking, modeling, professional photography and many areas of public life.
When contact lenses were first introduced in the market, they were very expensive novelties that only a few could afford. As research and development advanced with time, manufacturing procedures caused competition, they became more affordable. As a result, lenses price dropped and almost anyone can buy contact lenses today. Cut-price contact lenses are available for every purpose. Cheap contact lenses are as effective in altering appearance and correction vision defects as the costlier selections.Many companies now sell discounted contact lenses online. The lenses price difference is often sizeable.
Contact lenses have achieved great importance in an age where the cosmetics sides of life are of supremestanding. Spectacles remain the primary means of correcting vision even today. They often tend to give the wearer an aged look, detract attention from the facial features and cloud up in wet weather, too. Moreover, they limit the wearer's field of operative vision. Unsuitable spectacle frames also cause headaches because they place pressure on the wearer's temples. Because of many such reasons people have chosen to shift to using contact lenses in their day to day life.
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