Dr. Manoj Motwani discusses LASIK and the question he frequently gets about artificial tears. The issues with dry eyes are transient. Good post-op treatment will help your eyes go back to normal tear production in short order.
Artificial tears are helpful to deal with the transient dry eye side effect that resolves over a short period of time so your eyes will soon be producing a normal amount of tears. So the answer is, no, you will not need artificial tears forever. Artificial tears are just helpful to relieve dry eyes resulting from the successful LASIK eye surgery procedure.