New surgery op to improve eye problem

This is a news article on a surgery operation to improve eyesight to better than 20/20 vision.

Excerpt:

Patients are having their eyes fitted with an artificial lens that allows them to see in high definition.

Surgeons begin the process by implanting the lens into the eye using the standard procedure for cataracts. Then, for the first time in Britain, they can fine-tune the focus of the lens several days later. The technique gives patients vision so sharp that it is even better than 20/20 - the best an adult can usually hope for.

Bobby Qureshi, the first ophthalmic surgeon in the UK to use the lens, described it as "a hugely significant development". It can correct both cataracts and the long-sightedness that usually comes with age. The lens is made from a special light-sensitive silicone.

By shining ultraviolet light on specific parts of the lens, surgeons can change its shape and curvature, sharpening the image seen by the patient.

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