I read on the Decot http://www.sportglasses.com/content/Articles.htm website that a prescription that is about 1/2 of your normal reading glasses prescription would be about right for pistol shooting. If your normal correction is +2.00 then try +1.50. In other words you want something that focuses a bit further out than your front sight leaving it in a slight blur. They speak of accomodation, or our ability to focus (in my case strain) your eyes beyond our normal range. I haven't gone to my eye doctor to get a pair yet but I'm going to have to. I went shooting the other day and while I was doing ok on the paper targets, the steel plates were a struggle. I was more in zen mode not looking or rather not seeing the front sight. I'm going to have to try some of these other options such as the tru-glos.