HogLifer - You must have vision correctable to 20/40 in each eye. In all cases, the uncorrected vision should be at least 20/800. A vision waiver may be granted if the applicant's corrected vision in the better eye is 20/40. You must also have 100 degrees horizontal field of vision.
One other thing I can add is that the ability to identify color is just as important. From what I've heard though is that if you are color blind you can still get a license just with a day only restriction.... maybe some clarification.....