My prescription was about the same as yours. So yes, you will be able to find a practice that will consider you, although some may not.
The thing you need to know, is that the higher your prescription, the higher the risk that you wont end up with perfect eye sight. I was given the option of either risking slightly too little time under the laser, and having a residual shortsighted prescription, or going longer and risking going over slightly and becoming slightly long sighted.
Being used to being shortsightedness, i opted for the former. I do have a residual prescription of about -1.5, but although a perfect prescription would have been nice, i am happy wit what i now have.
From not being able to even find where i put my glasses, i can now happily go swimming without wearing glasses or not being able to see where the wall was.
So, its a case of being realistic, and then hopefully, you will be more than happy with the results.