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The PRK healing time is longer than the healing time required for LASIK and improved vision may not be evident for one to two weeks. Conversely, LASIK patients may experience improved vision within one to three days after the procedure. However, the flap required for the completion of LASIK surgery may take years to heal. Since PRK does not involve the creation of a flap, patients who undergo this procedure do not have the same concerns about disturbing the flap as LASIK patients have.
The PRK healing process is also considered to more uncomfortable than the process of healing from LASIK patient. Discomfort may be more severe and may last longer than the discomfort associated with LASIK.