LASIK procedures are very safe. These procedures are also US -FDA approved certification, which means they have been given safety clearance for Human Eyes. However, like any other surgical procedure it can have some complications which are extremely rare if a proper screening check is done prior to the procedure. Some patients might experience mild dryness in eyes which usually relieved by lubricating drops and disappears over time. Some may also experience temporary halos during night time which also reduces with time. Immediately after LASIK one might experience mild heaviness and blurring of vision. These are due to the effects of numbing eye drops used during the procedure. All these are rare and can be easily managed by your doctor. Nobody, in our surgical experience, has ever lost sight due to this procedure.