LASIK affects nerve supply of cornea resulting in complaints of dryness with many patients, where as Smile has only cutting of only 2.5 to 3 mm ,so less complaint of dryness with smile,there is no direct blood supply in cornea ,it takes nutrition from tears from blinking from outer surface & from aqueous in anterior chamber on posterior side of cornea.
Answered2017-01-25 23:05:37
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