Some of the private practice fellowships "focus" on refractive surgery, but I'm not sure how much actual lasering you are doing. Some of these private practice fellowships include: Durrie's, Pepose, etc.
Of the better-known cornea fellowships, the ones that I've heard where you do a decent amount of refractive (e.g. 75-100 eyes) are: Colorado, Utah, Hamilton Eye (private practice fellowship in Atlanta), Casey Eye. I'm sure there are others. Unfortunately, most cornea/"refractive" fellowships provide very poor, real-world experience to refractive surgery. This is due to the fact that most high-volume LASIK guys are NOT in academia.