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Advanced Surface Ablation (ASA) utilizes an excimer laser to reshape the surface of the cornea. Like LASIK, it is used to correct nearsightedness, farsightedness, and astigmatism. Unlike LASIK, ASA does not require the use of a microkeratome blade. No corneal flap is created and no blade is necessary.
Patients who have been told they were not good candidates for LASIK due to thin corneas, a high degree of focus error, or other conditions, may be elegible for vision correction with ASA.
After laser treatment is performed, a soft contact lens is applied to the eye and left in place for several days. While recovery time is slightly longer than with LASIK, visual results are excellent.