The excimer laser is an instrument used in eye surgery. When the UV light it admits hits the delicate tissues of the eye, it produces an effect known as ablation: the more superficial layers of the tissue hit by the rays are disintegrated and vaporized.
Ablation – in addition to being precise to less than a thousandth of a millimeter – is “selective”, meaning that the process will only occur in the area of the cornea chosen for treatment, at a predetermined depth and width, thanks also to the fact that the laser is controlled by a computer programmed and managed by the eye surgeon.
The corneal surface of the eye is reshaped to correct the sight defect. Using a laser ensures treatments of an almost perfect quality, with consequently extremely precise refractive results. Thanks to the eye tracker system, the laser follows the eye: if the eye movements are excessive, the laser action will be interrupted; however, if there are micromovements, work will proceed without errors.