Same problem here. There is a very long thread on another gun forum going right now about this exact topic. I have found that red dots are the easiest solution but dang it I want to use iron sights too! I'm currently playing with different prescriptions of reading glasses like JStacey suggested. If I find the right power I can get stick-on vinyl lenses and slap them on my shooting glasses. There are a lot of options...keep trying!
Yep, I have the same problems with older eyes. Looking at my front sight by doing the common 'head tilt' and looking at the front sight through my bifocals works well for a crisp, clear front sight picture. My problem is that anything beyond 15-20 yards, I can't see the target well enough. Heck, if some of my targets didn't have that blurry, bright red center, they would look like a black and white blob with no features whatsoever. at those distances.
As much as I like iron sights, a red dot is the solution for me if I want to shoot well. Red dot sights are simpler and faster. Being able to hold steady enough to put the dot where I want the bullet to go and squeezing the trigger when I'm on is the only challenge now. I have to say that a red dot allows me to shoot as well as I ever did, even when I was younger and didn't need glasses.
Check out RX Tactical. They make glasses for this exact reason. I have heard a lot of good things about them from shooters saying they can see their irons as good as they could when they were kids after using them.
Yes, red dot sights are hard to beat on a Mark pistol. They allow you to focus on both the dot and the target simultaneously -- something that is optically impossible with iron sights. For that reason, red dot sights are a natural for us older guys. My vision is still 20/20 but I still appreciate red dot sights. And since the mount on the upper does not move when the Mark pistol fires, these pistols are a particularly good platform for red dot sights.
I've had good luck with this Tacfire, so far. Just use it for plinking and casual shooting. Has 4 reticals, and 5 degrees of brightness, both red and green. I think it is also marketed under other names. i paid $59.95
same problem here, without glasses I can see the target but not the sights, with glasses I can see the sights but not the target, put a red dot on my contender pistol last fall and it worked great for deer hunting, ordered a mount this week to put a red dot on my MKl bull barrel.
I'm in my mid-60's, and have worn glasses for nearsightedness since grade school.
I have one pistol with a red dot mounted, an old Tasco that I've never had to have re-dotted.
I also have an Ultradot that I'm going to mount on something, someday. But like many of you, I just like using traditional sights. There is a good reason to do so; I can blame my normally poor shooting on my vision and the sights.