Get yourself to a gun store and try out some of those sights to see which seems to work well for you.
My situation is that I can either put on my reading glasses and see the sights, but will not be able to see the target, or leaving the glasses off I can see the target but not the sights. Guess which I consider more important?
Since I'm probably never going to have enough time to pull out the reading glasses and set them on my nose, I train in point shooting (also known by lots of other less-stigmatized names). I'm deadly accurate out to 20 yards, which should cover almost any situation I find myself in where I need to shoot something RFN. Out beyond 20 yards I'm less likely to decide to shoot, but I can miss you close enough to make you want to keep your head down instead of shooting at me.
Your mileage and decision will of course vary based on your personal circumstances, as well as the training and practice you are willing to put into whatever decision you make.