I'm also curious about the incidence of PD with the use of laser assist vs bladed surgery. I opted for laser, it probably has no bearing since it's thought to be the material and shape of the lens replacement, but I am curious. Saw my opthalmologist yesterday and he said no one knows why or how some people get PD, that they just do. At my one month post op visit we test for new eyeglass RX and he said that a new RX (if needed) may calm down the streaks. Needless to say I won't be doing my other eye any time soon.