Tuesday, November 24, 2009

Contact Lenses

Contact lenses are plastic disks that is inserted onto the eyes, as in a kind of frame, that aims to proivde the user with vision, thus eliminating the need of wearing huge spectacles. The lenses were invented a long time ago, but through out the ages, they were not able to get the attention that was needed simply because they were not comfortable for the user to wear. People would get eye infections if proper care was not maintained, or while wearing, it could only be on for at most two to three hours, any more than that would cause eye redness, swelling and at times pain. Earlier generation contact lenses did not allow the eye to breathe, and sort of trapped the eyes, depriving it of all moisture and softeness.