I have heard of the sight-correction procedure for your eyes called PRK...?!
Question: So, basically, instead of cutting your eye open such as in LASIK, the outer part of your eye is somehow shaped, kind of like eye glasses are installed on your eye. My question is, would this procedure need to be redone as often as you would normally need to get a new prescription for glasses? Which procedure lasts longer - LASIK or PRK? Thanks!!
Answers: So, basically, instead of cutting your eye open such as in LASIK, the outer part of your eye is somehow shaped, kind of like eye glasses are installed on your eye. My question is, would this procedure need to be redone as often as you would normally need to get a new prescription for glasses? Which procedure lasts longer - LASIK or PRK? Thanks!!
There is no statistical difference in the stability of post op prescriptions when comparing the results of PRK vs. LASIK. Because PRK thins the cornea less than LASIK, though, if indeed you do find that enhancements are needed later in life, more enhancements can be safely done with PRK because less corneal tissue is removed on each surgery.
I agree with yagman, although in my own personal experience with co-managing PRK surgeries I would say that PRK is less stable long term than LASIK. PRK is still a good option for those people in which LASIK is not possible, like people who have thinner than normal corneas.