Breast augmentation: Has anyone had to have corrective surgery because the breasts were different sizes after?

I had breast increase size (saline) completed and one is larger than the other. I have over a week before I see the doc again and I unsatisfied with the results; one was filled more than the other and noticable. Has this happened to anyone? Now what do I do or ask the doc to consider? Seems there would be a more scientific way to get this done so this wouldn't happen.