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3.Next, your doctor will use a special instrument called a microkeratome to make a small incision in the cornea’s outer layer to create a small corneal flap. When this "hinged" flap is pulled back, a small area of your cornea is exposed. The excimer laser beam is applied to this exposed corneal area.
While you continue to watch the blinking light, your surgeon will apply very small and very rapid – billionths of a second - "bursts" of the excimer laser to your cornea to reshape it. For example, areas that are too flat may be made steeper or more rounded; areas that are too curved may be "smoothed."
This reshaping – the heart of the LASIK experience – normally takes about one minute.
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