There are two steps in Lasik procedure. First the surgeon creates a micro-thin corneal flap, which is lifted to explose the inner cornea for step two, tissue ablation by an excimer laser. The Intalase FS Laser introduced the concept of blade-free lasik in 2001, representing the first improvement to the procedure's first step. Surgeons have found statistically and clinically significant differences in the vision patients achieve - better than 20/20 to 20/15 and even 20/12.5 - when the laser is used to make the corneal flap.

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