What Is LAHayeSIK Until now Versatility, Precision, and Reliability The LAHayeSIK Instrument Over the past decade and a half, LASIK has emerged as one of the safest and most successful surgeries of any variety Millions of people around the globe have been able to regain their visual independence and reduce or eliminate their reliance. What Is LAHayeSIK Until now Versatility, Precision, and Reliability The LAHayeSIK Instrument Over the past decade and a half, LASIK has emerged as one of the safest and most successful surgeries of any variety Millions of people around the globe have been able to regain their visual independence and reduce or eliminate their reliance.