Contact Lenses

Korea Optical Contact LensesContact lenses are a fairly new invention, and they still constitute a minority share of the general eyewear industry and market. Similarly to eyeglasses, contact lenses can be used for corrective and therapeutic purposes, but they also have cosmetic uses, as people can use cosmetic contact lenses to change their eye color.

The German physiologist Adolf Fick constructed and inserted the first contact lens successfully in 1887. Since contact between sensitive organs such as the eye, and non-biological objects like a glass or plastic lens is usually interpreted by the body as a threat and rejected, this was a huge advancement. Almost a century later, in 1971, the Food and Drug Administration (FDA) in the United States approved the manufacture and sale of soft hydrogel lenses. There have been further advances made in the production technology and materials of contact lenses to improve comfort and safety, especially by designing contact lenses that are more oxygen-permeable (i.e. allow the eye to receive more oxygen, which it needs, through the lenses).

A new and promising development might be the invention of workable “bionic lenses,” which is a contact lens that combines biological tissue safe for the eye, and non-biological electronic and computer circuitry that can be integrated into the vision of the wearer. This would mean a radical breakthrough in both designer eyewear and computer science, as the two converge. Imagine being able to do all your daily tasks for which you need a computer through your bionic contact lenses! But this is also very promising to people with severe vision deficiencies, such as blind people, for whom a computer-generated image, produced by a bionic lens, may be transmitted straight to their brain to give them vision.