Pastornicky will never come close to Uggla's power but he's gonna be far more consistent and I think that will help the lineup more. There have been too many situations like the one last night where Uggla couldn't do the little things like getting a guy in from third with less than two outs. I think Pastornicky will be far better at that which will make the bottom of the lineup less feast or famine.
I hope eye surgery has dramatic results for Uggla but I'm not holding my breath. I think the cause of his struggles is more declining bat speed than declining eyesight. Some guys just go quick (see Dale Murphy).