Can correct for high amounts and unusual types of refractive errors. Does not appear to weaken the corneal structure in regard to possible future trauma. Lower risk of loss of central corneal transparency because the laser does not alter the outer corneal layer. Yields stable results over an extended time period. Little postoperative pain.
Recovery time is shorter in comparison with traditional excimer laser surgery.
Requires high surgical skill and experience. Can cause, especially initially after surgery, problems with night vision. Surgically involves the central cornea, or visual axis. Thus this technique should generally only be utilized when a moderate to high amount of refractive error exists.