it could and it couldn't. providing the surgery goes well then not at all. i've heard of instances when it didn't go well and that could have an effect. someone once told me that a rare problem that could arise is not being able to deal with glare and that would hindure your chances, but risks are minimal, but i would go to a well established organisation that does it and not just the cheapest option. remember you do get what you pay for.
and secondly, you have to see what your prescription is first. i don't know the rules in australia but in the JAA if your eyesight was outside of the + or - 5 dioptres before the surgery, even if the surgery was fine, then you will have a deviation on the medical permanantly, and that would mean only being able to get a job with an airline which is in the country of issue. so, if your in the limits and want to have it, then look into it, but if your outside the limits trying to get in, i would say most certanly not. take the deviation route with your original eyesight becaue them it is lifted after CPL training.
natural eyesight impovers shouldn't go amiss either, i've heard alot of good things about them.