HD Vision? Surgeons Make It a Reality

Patients are having their eyes fitted with an artificial lens that lets them see in HD. "The change is so accurate that we can even make the lens bifocal or varifocal, so as well as giving them good vision at distance we can give them good vision for reading," says Bobby Qureshi, the first ophthalmic surgeon in the U.K. to use the lens. Here's how the surgery works. <a href="http://www.foxnews.com/story/0,2933,579042,00.html">Read more</a> (Sky News)

Surgeons begin the process by implanting the lens into the eye using the standard procedure for cataracts. First the damaged lens is removed.  (Sky News)

Researchers then implant a new lens made from light sensitive silicon.  (Sky News)

After the eyeball has healed from the operation, surgeons fire a beam of ultraviolet light at the lens that causes a chemical reaction.  (Sky News)

By shining the ultraviolet light on specific parts of the lens, surgeons can change its shape and curvature, making it fatter or thinner, and sharpening the image seen by the patient. (Sky News)