It depends on many factors and the assessment of your eye health and visual needs.Certain measurements indicate better sucess with one form or the other. far-sighted patients are best treated with Lasik than lasek . Those who need to return to work within a day often choose lasik for this reason even though lasek may give exactly the same result 4 or 5 days later. Those patients whose cornea is a little thin are more suitable for Lasek