Wearing non prescription colored contact lenses can be fun, exotic, and may be more common than you think. As far back as 1508, contact lenses were an abstract construct in at least one person's mind. Of all people to have this idea was the infamous Leonardo da Vinci. Da Vinci detailed descriptions and drawings of how a person could alter the power of the cornea by submersion of the eye into a bowl of water. His idea, of course was at least 300 years ahead of its time. In the 1820's, an English astronomer, named Sir John Herschel, proposed techniques for grinding and fitting a lens to conform precisely to the surface of the eye. In order to do this most accurately, Herschel suggested that, first, a cast should be made of the eye so that the final product would conform exactly to the person's eyeball. In 1888, a physiologist in Zurich, by the name of A. E. Fick, put Herschel's original idea to the test by developing a pair of lenses for himself. Because he used glass, the lenses were extremely heavy for the eyes. He was only able to wear them for a total of 2 hours because of their weight and the fact that oxygen could not get to the eye. Nevertheless, non prescription colored contact lenses would not have been possible without those first stages of contact lens development.
There were many false starts and do overs throughout the next century. Even with all of the research and activities going, until the 1930's, the only type of lens that was readily available was the glass-blown scleral lens; not quite the right material for non prescription colored contact lenses. Various chemists and eye specialists became aggressive in the pursuit of a more appropriate material for use in the development of contacts. Experimental lenses were made with numerous materials. It wasn't until 1938 that a new material called polymethylmethacrylate (PMMA) was determined to be a much better material because of its low density. Though this material wasn't perfect, it worked fairly well. In 1949, corneal lenses took the place of the original scleral type. This lens was more akin to the type and size of lens that is used in non prescription colored contact lenses. Because of this advancement, mass appeal developed through the 1960s. The contact lens became even more intricate with improved manufacturing technology; giving rise to silicone hydrogels. This new lens technology had extreme oxygen permeability. The level of comfort experienced by wearers of the silicon hydrogels, was unmatched.
After such a major breakthrough, contacts became all the rage. The price of contacts fell considerably. Those people who would have never considered trying them, began to question their doctors. Also, this advancement in technology, catapulted a new industry of non prescription colored contact lenses. People who would have never considered putting something in their eyes to enhance their beauty or change their appearance, began to gobble up multiple pairs, in various shades. It is estimated that a full 2 percent of the population (approximately 125 million people) actually wear contacts. Of that amount, nearly 38 million of the wearers are in the U.S. Contacts are less affected by weather and generally do not steam up when a person goes from one temperature extreme to another. They also provide a clearer field of vision in that there are no arms that hold the lens to your face; to block your peripheral sphere. Lots of people, who need corrective lenses, choose to wear contacts so as not to alter personal appearance or because of the fact that they are more practical than glasses. But, there is also a large percentage that choose to wear non prescription colored contact lenses for purely cosmetic reasons. These people want to alter their appearance.
"Let all the nations be gathered together, and let the people be assembled: who among them can declare this, and shew us former things? let them bring forth their witnesses, that they may be justified: or let them hear, and say, It is truth." (Isaiah 43:9) They are used, like make-up is used, to enhance one's appearance. The available colors go from regular eye colors to extreme colors and shapes; most appropriately worn on Halloween. Some people use colored contacts to color coordinate with their apparel. Others use these contacts as part of a make-over. Because non prescription colored contact lenses tend to be opaque, the natural color of a person's eyes, doesn't really matter. Light blue eyes can be turned into pools of aqua. Dark chocolate eyes can become brilliant turquoise. Hazel eyes can be made jade.
Since 1999, the silicone hydrogel has become the standard in contact lens technology. These lenses are far more comfortable. Yet this comfort comes with a price. The actual cost of a lens is less per lens, but they must be replaced much more often than the rigid lens. Some companies produce contacts that are called daily wear. You wear those lens for one day and throw them away. There are others that are meant to be used for a full week at a time; and up to two weeks max. Whether a person is wearing them for corrective or cosmetic purposes, all contact lenses are medical devices. They are to be worn under a doctors care. This is also true for non prescription colored contact lenses; as well. A person is apportioned only one set of eyes. It is the most valuable of all our senses. People can have fun and make them exotic; if they wish.
There were many false starts and do overs throughout the next century. Even with all of the research and activities going, until the 1930's, the only type of lens that was readily available was the glass-blown scleral lens; not quite the right material for non prescription colored contact lenses. Various chemists and eye specialists became aggressive in the pursuit of a more appropriate material for use in the development of contacts. Experimental lenses were made with numerous materials. It wasn't until 1938 that a new material called polymethylmethacrylate (PMMA) was determined to be a much better material because of its low density. Though this material wasn't perfect, it worked fairly well. In 1949, corneal lenses took the place of the original scleral type. This lens was more akin to the type and size of lens that is used in non prescription colored contact lenses. Because of this advancement, mass appeal developed through the 1960s. The contact lens became even more intricate with improved manufacturing technology; giving rise to silicone hydrogels. This new lens technology had extreme oxygen permeability. The level of comfort experienced by wearers of the silicon hydrogels, was unmatched.
After such a major breakthrough, contacts became all the rage. The price of contacts fell considerably. Those people who would have never considered trying them, began to question their doctors. Also, this advancement in technology, catapulted a new industry of non prescription colored contact lenses. People who would have never considered putting something in their eyes to enhance their beauty or change their appearance, began to gobble up multiple pairs, in various shades. It is estimated that a full 2 percent of the population (approximately 125 million people) actually wear contacts. Of that amount, nearly 38 million of the wearers are in the U.S. Contacts are less affected by weather and generally do not steam up when a person goes from one temperature extreme to another. They also provide a clearer field of vision in that there are no arms that hold the lens to your face; to block your peripheral sphere. Lots of people, who need corrective lenses, choose to wear contacts so as not to alter personal appearance or because of the fact that they are more practical than glasses. But, there is also a large percentage that choose to wear non prescription colored contact lenses for purely cosmetic reasons. These people want to alter their appearance.
"Let all the nations be gathered together, and let the people be assembled: who among them can declare this, and shew us former things? let them bring forth their witnesses, that they may be justified: or let them hear, and say, It is truth." (Isaiah 43:9) They are used, like make-up is used, to enhance one's appearance. The available colors go from regular eye colors to extreme colors and shapes; most appropriately worn on Halloween. Some people use colored contacts to color coordinate with their apparel. Others use these contacts as part of a make-over. Because non prescription colored contact lenses tend to be opaque, the natural color of a person's eyes, doesn't really matter. Light blue eyes can be turned into pools of aqua. Dark chocolate eyes can become brilliant turquoise. Hazel eyes can be made jade.
Since 1999, the silicone hydrogel has become the standard in contact lens technology. These lenses are far more comfortable. Yet this comfort comes with a price. The actual cost of a lens is less per lens, but they must be replaced much more often than the rigid lens. Some companies produce contacts that are called daily wear. You wear those lens for one day and throw them away. There are others that are meant to be used for a full week at a time; and up to two weeks max. Whether a person is wearing them for corrective or cosmetic purposes, all contact lenses are medical devices. They are to be worn under a doctors care. This is also true for non prescription colored contact lenses; as well. A person is apportioned only one set of eyes. It is the most valuable of all our senses. People can have fun and make them exotic; if they wish.
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