With the advancement of technology in every field of work, the lifestyle of people nowadays has become very sophisticated. This change has occurred in almost every aspects of human life; the field of business, music, games and most important the medical field. The advancement of technology in the medical field has helped people a lot; it has brought a new dimension in the medical sector. One of the most important discoveries in the medical field is the discovery of contact lens. We all know that eyes are the most precious part of human body and protecting from any type of harm is very necessary. Previously, people used to wear eye glasses to protect their eyes; but nowadays, most people have shifted to the contact lenses to protect their eyes. The thick glassed spectacles basically had no problems; they were easy to use and maintain. But, with the introduction of contact lens, people have found that it is much more advantageous than the eye glasses.

The eye glasses are easy to wear and maintain, but using a heavy glass spec for long hours is very uncomfortable. It gives a scratchy feeling on the ears and nose. Using the contact lenses relieved the general people from these types of problems. The contact lenses serve well in enhancing the style of a person also. Moreover, these lenses are cheaper than the glass specs and much easier to carry. Contact lenses are generally made of soft and light round piece of plastic in such a way that it serves the purpose of a person. A contact lens is worn on the cornea of the human eye; and because of its light-weight, people do not find it uncomfortable even after wearing throughout the day. The best of a contact lens is that it can be used by people of any age. It can be used by a 90 year old person, as well as an infant. In the later case, the parents of the infant have to insert and replace the contact lens from the baby’s eyes.

Nowadays, most teenagers use the contact lenses instead of the eye glasses as these lenses are much more fashionable. Contact lenses, which are used for fashion purpose, are mainly of three types; one has opaque color in it, which changes the color of the eyes completely. These types of lenses are used extensively by the teenagers. Colored contact lenses are also available in attractive themes. These lenses are mostly used by the young generation and the people of the fashion world. The second one is the semi-colored contact lens; these are not fully colored and generally used to enhance the original color of a person’s eyes. These lenses are also used at a large extent. The third type of lens is the invisible contact lens; these lenses are not used for fashion purpose as their colors are not properly visible. These lenses are provided with a green or blue tint, so that people do not find any problem while cleaning them.