Dan asked:
Ganderite,
I am also looking for prescription glasses for shooting sports.
How are your glasses different than just ordinary prescription glasses?
How did you go about it and do you have any advice for someone who needs prescription glasses for the range?
Sorry for digression, but this might probably interest many others.
Regards,
Dan
As you know, it is critical that the front sight of a rifle or pistol is in focus. As we age, the eye gets stiffer and the muscles can't reshape it for close focus. This is when we start holding documents at arm’s length, so we can better focus.
Then we break down and get reading glasses or bifocals, so we can focus at close range – say 12” to 30”.
I have had bi-focals for about 15 years and thought I was OK. For rifle shooting I went to longer barrels to get the front sight farther out. My barrels are 32”, and if I was to get serious about rifle, I would go to a bloop tube to push the sight out another 6”.
I spend a lot of time in front of a computer, and found I was getting a stiff neck tilting my head back all the time to see out the bottom of the bi-focals. So I went to my optical guy and had a pair of single-prescription glasses made that were almost 100% like my bottom bi-focal lens. I think we changed the prescription by about a quarter diopter so they focused at 36” (the computer screen) and back to about 18”. My regular bifocal lens will focus from about 12” to about 30”.
One day, while sitting her at my desk, playing with a pistol, I discovered that I could see the sights much sharper than usual. I was wearing my computer glasses. Flash! Why don’t I wear these at the range for pistol shooting? I tried them, and found I could see the sights very sharply, but the target was a hopeless blur.
What I needed was a lens that had a
close focus distance of 30”, not a
far focus of 30”. So I went back the optics guy with a 1911 slide and tried different diopters until the sights were just barely in focus. Anything closer is blurry. In this way the target is as sharp as it can be, given the need to focus my eye at 30”.
My pistol shooting glasses is a regular cheap frame with plastic lenses (for safety). The left lens is my standard bifocal lens, so I can see at a distance and up close (loading mags, etc.) The right lens is a single prescription lens that just barely brings 30” into focus.
Total cost $60.
Here is what they look like. Nothing special, except only one lens is a bifocal. Other is set up to focus just beyond my hand.