How Lasik Works
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LASIK has really developed technologically over the past decade, and continues to become increasingly more advanced day by day. However, the basic idea stays the same: your inner cornea is exposed to smooth away the bumps with a laser that cause imperfections in your vision. Now, the more advanced version.
In the 1970's, the cornea was sliced open, creating a flap, with a diamond blade. As technology advanced, the blade become an acutely vibrating blade that required surgeons to be exceptionally apt at handling. (Keep in mind, these highly specialized surgeons are likely some of the same to be working on you - now with even better technology!) As the technology of lasers continued to advance, some state of the art surgeons realized lasers could not only be used to smooth the imperfections, but to actually create the flap as well. To take it one step further, LASIK was then customized to each patient by taking a meticulous array of topographical measurements of the eye to pre-program into the laser so there was less room for human error, and a more precise, finite level of operation.
There are a few vision problems that cannot be corrected through LASIK, but quite a few common vision impairments are easily corrected with this easy, yet incredibly technologically-advanced procedure.