PRK is a different procedure. The main advantage is that there is no incision and less chances of error which is why pilots opt for it. The main disadvantage of

PRK is a different procedure. The main advantage is that there is no incision and less chances of error which is why pilots opt for it. The main disadvantage of PRK over lasik is the much longer recovery time which is a decent trade off for less risk. That said, I still suffer from dry eye years after the procedure though it’s improved compared to before