by jshuberg on Sun Jan 18, 2015 12:36 pm
I'm in a similar situation. I'm slightly nearsighted. I wear glasses most of the time, but can see well enough out to around 10 feet, then things start getting fuzzy.
The problem is, as my eyes have slowly gotten worse, I really have to strain to see my front sight clearly when wearing my glasses. It's gotten to the point where I just can't see the sight crisply enough for precision work with glasses. I've found that using a front sight with coarse serrations gives my eye something crisp and precise to lock onto, so I can tell if my eyes are actually properly focused on it or not. The problem is that without glasses, that target can become too out of focus to be able to see well enough. A 3" target at 25 yards all but disappears, and my groups open up considerably. This kinds sucks, since just a few years ago I was able to consistently hold 2" groups at 25 yards, and an occasional sub-inch 5 round group.
I've started experimenting with something called monovision. Having a different prescription in each lens. It's not very commonly prescribed, but is occasionally as an alternative for bifocals for both seeing at distance, and seeing up close for reading, etc. Quite a few competition guys with old eyes seem to be running this precision, where their dominant eye is focussed at arms length for the front sight, the non-dominant for distance. I've spoke with my optometrist about this, and I don't think he has any idea what I'm talking about. I joined an optical forum specifically to discuss this and other optical-related shooting oriented questions, but want to wait until I've played with the technique enough to decide whether it's worth bothering other people about, however, so far it looks promising.
What I've been doing is using my Oakley Fast Jacket sport glasses with prescription orange tinted lenses, only taking the left lens out (my dominant eye) and replacing it with a non-prescription lens that came with the glasses. When I first put them on it's pretty strange, different lenses with different prescriptions (in my case one prescription, one not), but the theory that seems to hold true is that if you wear them for brief 30-60 mins a day your brain will work out how to use them, and the "weirdness" goes away. How it works is that your mind will simply switch between which eye it's favoring when looking at objects at different distances. It sounds strange, but does seem to work.
Yesterday I was able to shoot around a 2.5" group at 25 yards, having not really done much precision work for quite awhile. So this is definitely something that would be very useful when shooting competition and the like. I suspect that an optometrist "in the know" when it comes to shooting would actually prescribe two different prescriptions to maximize the effectiveness of the technique rather than using one non-prescription lens. But this is good enough to play around with before putting any money into an oddball prescription.
My plan is to find an optometrist that understands all this and get a proper set made, and then try wearing them as my everyday glasses for awhile and see how that goes. Based on how the mind learns how to adapt pretty easily, I suspect that wearing this prescription, optimized for shooting will work just fine in the real world, and may work instead of bifocals should my eyes ever get bad enough to need them. At this point anything more than a few feet away works really well, but up close my brain is trying to figure out which eye to use, since either are capable of focusing up close. My guess is that one eye will end up winning, and after that everything will look perfectly normal to me when wearing them, but I'll be able to see both my front sight and the target well enough at distance for precision shooting out past 25 yards again.
So this is kind of a long post, mostly because I'm still in the "playing around" with it stage, but if you've got an older set of glasses try popping a lens out and wearing under safety glasses and see how it works. It's gonna look really weird at first, try to ignore it and just focus on your front sight and let the weirdness dissolve away. After awhile you mind will adjust and things won't look so weird anymore. There are enough shooters out there running a monovision prescription designed for shooting to make it worth looking into. And I suspect that using a "shooters monovision" all the time would work just fine once you get used to it, and might delay the need for bifocals.
Anyways, hope this helps.
NRA Certified Basic Pistol Instructor
NRA Certified Personal Protection In The Home Instructor
NRA Life Member
MCPPA Certified Instructor
Gulf War Veteran