How old should you be before you have eye surgery (to correct your eye sight)?

At least 18: For the most part, 18 years old is the youngest that most refractive surgeons will operate on a patient. That is because prior to that a patient's eyes will reliably and consistently change refractive errors. Even then, though, it is wise to make sure that the refractive error is not changing regularly before doing so. That being said, for special circumstances, it can and is done before age 18.

18 or older: Laser vision correction (lasik) is the most common surgery to correct vision. It is approved by the fda for treatment on those who are 18 or over. The reasoning behind this cutoff is that the eye's shape and therefore prescription continue to change until one is about 18. For this reason age and prescription stability are both important prior to having lasik.