How long after PRK does your vision stay blurry for?

I can give you the best of both worlds. I am an eye doctor AND I have had PRK. Your doctor is correct about fluctuation in your vision for 1 to 3 months after surgery. My personal experience supports this time frame. I would find that one day my vision would be crystal clear and then the next it would be off a little bit. This went on for probably two months with me. Also, I noticed significant dryness for probably six months or so before my eyes wettability returned to normal. So follow the recommendations of you doctor. He is right.