People who need corrective lenses for better vision prefer contact lenses to glasses for reasons more than one. Besides the apparent appearance, glasses may be uncomfortable on the face, be heavy on the ears and nose and may have glare problems. This drawback can be overcome by using contact lenses, which are almost invisible on the eyes to others.
Initially, contact lenses were made of glasses and were rigid and uncomfortable. But soon they were replaced by a polymer based product which made them a little comfortable. But this type of contact lens too had a hiccup, the oxygen flow to the cornea was restricted and this caused problems to the eyes of those who wore contact lenses for a prolonged time.
But now is the era of soft contact lenses which are made of silicon hydro gel that is similar to plastic and are more comfortable on the eyes. Though they are thinner and tend to tear off easily, they are almost weightless and blend well with the eyes. So, now it is possible to have color contact lenses in colors of jade, yellow, violet or red. Color contact lenses are basically for aesthetic or cosmetic purposes because they […]
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The causes of juvenile diabetes remains shrouded in mystery though it is believed to be a genetic disorder. But genetics is only half the story.The pancreas, responsible for producing insulin necessary to get glucose out of the bloodstream and into the cells of the body, fails to function. Ultimately blood sugar rises to dangerous levels. If not addressed, the heart, kidneys and circulation are impaired. Ultimately death results.While there’s mo single reason for pancreatic failure, it is believed that genetics can predispose a child to getting type 1 diabetes. What is known is that the insulin producing beta cells of the pancreas are destroyed or injured mostly by the body’s own immune system. What triggers this destruction isn’t known.Genetics does play a part in getting the disease but it is now believed that an improper diet, environmental factors and lifestyle are more responsible in bringing about the disease.Genetics account for 5 to 10 percent of all those who develop diabetes and is assumed to set the stage for getting the disease. An improper lifestyle could become the trigger that leads to the destruction of the beta cells in the pancreas.
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