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Main Boards => PowWow => Topic started by: howl on January 11, 2021, 06:50:50 PM

Title: Eyeglass sweet spot, anchor?
Post by: howl on January 11, 2021, 06:50:50 PM
This is a little long. So, please bare bow with me.

If your eyes are bad enough you know there's a sweet spot in your lens where you get the clearest vision. There's a plain correlation with how accurately I can place an arrow and how clearly I can focus on where I want the arrow to go. Finest accuracy is only when looking through the sharpest part of the lens.

Trouble is, now that middle age took more of my vision this is so critical I pretty much have to have the lens square to the target to get a good focus. Totally ruins my form bringing my arm around and leads to plucking the string. I've been shooting the same old way I always did and letting the groups open up, but I'd like to improve.

I'm looking at moving my anchor to below the jaw to maintain form while still being able to square the lens to the target. Anyone had the same problem but a better idea?
Title: Re: Eyeglass sweet spot, anchor?
Post by: M60gunner on January 11, 2021, 07:28:41 PM
Are your glasses single vision or progressive lens? Reason I ask I wore progressive lenses and had nothing but trouble. I had a pair of glasses made just for distance that solved my alignment problems. One bennie of not being able to see good close up, I wasn’t allowed to keep score. No one trusted my eyesight for that chore.
Title: Re: Eyeglass sweet spot, anchor?
Post by: Orion on January 11, 2021, 07:56:48 PM
Shouldn't have to change your anchor.  Take your normal stance and just turn your head more toward the target. That will square the lens to the target. That should actually improve your left/right accuracy because your eye will be above the arrow looking over it, rather than looking across it, which is the case if your head isn't turned toward the target enough.  Good luck.
Title: Re: Eyeglass sweet spot, anchor?
Post by: MnFn on January 11, 2021, 09:40:53 PM
My Uncle Gene shot his Bear recurve with an anchor below his chin/jaw. (I think he pulled the string into/across his face. I don’t remember for sure because the last time I saw him shoot was over fifty years ago. He shot pretty  well as I recall.
Title: Re: Eyeglass sweet spot, anchor?
Post by: McDave on January 11, 2021, 09:48:39 PM
Many modern lenses are made from polycarbonate, which is very strong and so can be made thin, which looks better than the thicker plastic lenses.  Unfortunately, it is only in good focus in the center of the lens.  You would be better off getting plastic lenses, which are thicker, but are in focus over a much wider section of the lens.  This enables you to glance sideways at the target and still have the target in focus.  Orion is correct that it is best to rotate your head until you are looking squarely at the target.  Unfortunately, we don’t all have a sufficient range of motion to do that.  Fortunately, old fashioned plastic lenses made for distance only without any reading correction are the cheapest lenses you can get, so it shouldn’t break the bank.  You may have an old pair of glasses in a drawer somewhere that you can use the frame from, so you wouldn’t have to buy that too.
Title: Re: Eyeglass sweet spot, anchor?
Post by: Red Beastmaster on January 12, 2021, 09:15:27 AM
Progressives are no good for shooting a bow. My shooting glasses are lined bifocals with a very low line.  No problem focusing on the spot, no tripping in the woods, and I can still see things up close. Also, plastic frames that sit right on your nose work better than nose pads that can let you look through the gap.
Title: Re: Eyeglass sweet spot, anchor?
Post by: MattfromVT on January 12, 2021, 10:02:29 AM
Licensed optician here. I assume you're in progressives now. Since there's so much going on in a progressive, the "corridor" of usable area is pretty narrow. You really need to be facing whatever you're trying to see. Like others said, get a set of distance glasses just for shooting and you'll get more peripheral vision from them. That said, depending on your Rx and the frame shape/size it still may be more limited than what you're used to. If you have specific questions please feel free to DM me and I'd be happy to help. I would note that the material shouldn't make much difference in this situation unless your Rx is pretty strong. I'd recommend sticking with poly, trivex, or another impact-resistant material. Accidents happen in archery/hunting and it's good to have the protection.
Title: Re: Eyeglass sweet spot, anchor?
Post by: Sam McMichael on January 12, 2021, 11:29:19 AM
My glasses are progressive, and I have never found that sweet spot. In fact, I never shoot with them on, mostly because the string has slapped them off my face a few times and it hurts. Fortunately, my distant vision has not deteriorated much, so I can actually shoot well without glasses. If my distance vision does go bad, my anchor will definitely need to change. In a couple of weeks, though, I will have cataract surgery. I know some people do not need glasses after this. I also know there are no guarantees, but I hope to be one of the lucky ones.
Title: Re: Eyeglass sweet spot, anchor?
Post by: MattfromVT on January 12, 2021, 11:35:53 AM
My glasses are progressive, and I have never found that sweet spot. In fact, I never shoot with them on, mostly because the string has slapped them off my face a few times and it hurts. Fortunately, my distant vision has not deteriorated much, so I can actually shoot well without glasses. If my distance vision does go bad, my anchor will definitely need to change. In a couple of weeks, though, I will have cataract surgery. I know some people do not need glasses after this. I also know there are no guarantees, but I hope to be one of the lucky ones.

Generally they can get your distance vision to 20/20 with the surgery but you'll definitely need reading glasses. The artificial lens they put in your eye can't make the switch from distance to reading like a natural lens does.
Title: Re: Eyeglass sweet spot, anchor?
Post by: howl on January 12, 2021, 03:52:08 PM
Thanks for all the replies. I will ask about distance glasses at my next doctor visit this Spring. When I've broached the topic in the past I got the impression I'm lucky to be able to see as well as I do with what I have.

I'm not in progressives yet. I just have to use Hubble telescope lens rejects 'cause my eyeballs are shaped like footballs.
Title: Re: Eyeglass sweet spot, anchor?
Post by: David Mitchell on January 13, 2021, 01:47:03 PM
Discuss the problem with your optometrist.  My son is an optometrist and always happy to work with patients to accommodate their special, sports related needs. 
Title: Re: Eyeglass sweet spot, anchor?
Post by: Lefty38-55 on January 13, 2021, 03:04:18 PM
If your eyes are bad enough you know there's a sweet spot in your lens where you get the clearest vision. There's a plain correlation with how accurately I can place an arrow and how clearly I can focus on where I want the arrow to go. Finest accuracy is only when looking through the sharpest part of the lens.

Thanks for all the replies. I will ask about distance glasses at my next doctor visit this Spring.

I'm going through this right now; I wear progressives (and Transitions lenses, that darken in the sun) and I have an appointment with an optometrist on FRI who just so happens to be a rifle shooter too. Thus I will report back my progress or success!

I asked about this issue last night during the mid-shoot 10-min break at our weekly indoor league. Surprisingly to me, 3 there were wearing contacts and say they only use them for archery as they too had problems with lenses, especially with progressive lenses. I don't see them outside archery, so I had no idea of their eyesight. For the 4 others (yeah ... we're all old(er), lol!) they all agreed progressive lenses are an issue, where 3 of them were wearing non-progressives for archery-use only.

And to a man ... none of them were ever successful in turning their head all the way needed to look through that 'tunnel' of clear vision, as was suggested.

My plan is to remove the progressive feature from my shooting eye only (we'll see ...) and eliminate the Transitions darkening in both, making them into just a pair of "shooting glasses". So preferably I'd like to stay with high index polycarbonate lenses, as I also shoot muzzleloaders and other toys that go 'bang'.
Title: Re: Eyeglass sweet spot, anchor?
Post by: Huntschool on January 13, 2021, 03:20:11 PM
My eyes started going south about 22 years ago.  So, I went to progressive lenses.  I may be the odd ball here (nothing new) but I never experienced any problems with those lenses.  I was able to shoot my usual 3 under with an anchor on the front of my face right next to my nose.

Fast forward to the cataract stage....  This past Oct/Nov I had both eyes done and it has worked nothing short of magic.  One eye is set a bit for distance and the other for closer up.  I was able to read print nd the computer screen without assistance until about a month ago and now use low powered readers.  I knew this was a likely outcome so no big deal.  I can see what I want and that is what matters to me.   
Title: Re: Eyeglass sweet spot, anchor?
Post by: Bowguy67 on January 13, 2021, 04:24:54 PM
Something to think about. A low anchor like you state makes gap much larger. I’m 53 with eye issues. I wear just small distance lenses when I shoot. I hit nothing w my string and have no issues. Your eye Dr if he’s not an archer might have difficulty understanding what you need exactly
Title: Re: Eyeglass sweet spot, anchor?
Post by: Orion on January 13, 2021, 07:24:30 PM
I had cataract surgery last year, but before that I had progressive lenses.  Never a problem.  But, I turn my head toward the target rather than looking across the arrow so I didn't get any distortion. It's really a pretty easy fix.   
Title: Re: Eyeglass sweet spot, anchor?
Post by: LC on January 19, 2021, 07:59:23 PM
I only have one thing to add to all the great advice above. I hope this is OK to mention Zenni glasses on the web. You can literally buy five pair of glasses as to one pair of glasses from your local eye Doctor. So you can buy a pair of progressive, single vision, bifocal all with spare sunglasses for what you'd pay for one pair from Wally world.  Enter your up to date prescription and place the order. My wife and myself have been using them for the last several years with only one complaint which they fixed promptly. I presently each year get a pair for work (which I'm tough on) a Sunday go to meeting pair, a bow shooting pair all with spare sun glasses as I'm really hard on sun glasses. I am in no way connected to or work for them just trying to save some frugal trad bowhunters some money so they can buy another much needed  bow.
Title: Re: Eyeglass sweet spot, anchor?
Post by: YosemiteSam on January 20, 2021, 11:11:05 AM
The last time I shot with glasses, the string caught the side of the lens & they flew off my face.  My arrow landed on target but the glasses went almost halfway downrange.  Never could figure out how some people shoot with them at all.
Title: Re: Eyeglass sweet spot, anchor?
Post by: katman on January 21, 2021, 08:37:28 AM
Licensed optician here. I assume you're in progressives now. Since there's so much going on in a progressive, the "corridor" of usable area is pretty narrow. You really need to be facing whatever you're trying to see. Like others said, get a set of distance glasses just for shooting and you'll get more peripheral vision from them. That said, depending on your Rx and the frame shape/size it still may be more limited than what you're used to. If you have specific questions please feel free to DM me and I'd be happy to help. I would note that the material shouldn't make much difference in this situation unless your Rx is pretty strong. I'd recommend sticking with poly, trivex, or another impact-resistant material. Accidents happen in archery/hunting and it's good to have the protection.

Matt, can the 'sweet spot' be moved on a lens to accommodate an archer?
Title: Re: Eyeglass sweet spot, anchor?
Post by: MattfromVT on January 21, 2021, 08:57:19 AM
Matt, can the 'sweet spot' be moved on a lens to accommodate an archer?

It can... but you wouldn't want to walk around wearing them. I've done it for rifle shooters but I'm not positive I've done it for an archer. You'd essentially want to move the spot in the right lens towards your nose so you get your best vision when your head is turned for shooting. If your eye is pointed in that direction toward the target you'd be able to see well, but when your eye faces straight ahead it would feel like it's being pulled off to the side. It could cause double vision and definitely eye strain.
Title: Re: Eyeglass sweet spot, anchor?
Post by: Terry Green on January 21, 2021, 09:05:15 AM
Maybe I missed it... what about contacts?
Title: Re: Eyeglass sweet spot, anchor?
Post by: howl on January 21, 2021, 09:46:36 AM
In my case contacts are the hard ones that make me hate life. They have to be worn every day so the eye builds up to tolerate them. Pollen is torture. I'd rather deal with poorer vision than deal with that. 

When I go to an eye doctor he consults with his co-workers and often they come to look and be amazed.

Anchoring under chin worked great at one distance. Changing distance opened groups vertically more than I want to fight. Would be fine for deer hunting I guess, but boring for targets.
Title: Re: Eyeglass sweet spot, anchor?
Post by: McDave on January 21, 2021, 11:36:36 AM
Maybe I missed it... what about contacts?

I shot with contacts for years before I got cataract surgery.  Contacts are definitely the best solution for sharp vision when glancing sideways and avoiding problems with the frames of eyeglasses contacting the bowstring.  The problem with contacts is irritating the eyes with dust, smoke, etc.  This is definitely an issue with all day tournaments where it is difficult to take them out and clean them, and even more of a problem on multi-day hunts where hands get dirty and stay dirty.

If you already have cataracts, but they aren't bad enough yet to require surgery, my advice is to go ahead and get the cataract surgery ASAP.  It is probably the most successful surgery in the world, and the great majority of people who get it end up seeing better than they ever have in their lives.  If you think you might need cataract surgery, don't get LASIK, because cataract surgery will correct your vision better than LASIK.  OTOH, if you don't need cataract surgery at all, it would be hard to advise you to get it, because any surgery carries some risk, which is why they will only do one eye at a time.

Title: Re: Eyeglass sweet spot, anchor?
Post by: hawkeye n pa on January 22, 2021, 07:50:30 AM
I shoot with progressive lenses and have for the last twenty some years with no issues.  They are actually trifocals now.   Got the anti glare on my recent pair and really like that for inside shooting.  I did aerial work and getting used to looking down was the difficult part for me.
Title: Re: Eyeglass sweet spot, anchor?
Post by: Lefty38-55 on February 02, 2021, 04:03:54 PM
I can 'finally' see! At least whilst in my archery or shooting (rifles) stance!

I too wear progressives for all-around daily wear, but my vision may be worse that others here who had success with progressive lenses. I took an old pair of frames to the eye doc, who also shoots, and we removed the progressives, the Transition darkening feature and also moved the optical center of my master eye over 1/4", so when in my stance ... I can see.

They came in last week and now I can see the bullseye or target clearly! Yes, yes, yes .... !
Title: Re: Eyeglass sweet spot, anchor?
Post by: the rifleman on February 02, 2021, 07:31:47 PM
Had cataract surgery and the results were amazing--- i see 20/20 w my left eye.  Thank God everyday for my vision.  My right eye has always been very weak.  I went to optometrist to have a pair of safety glasses ground w bifocals.  They made me progressive lenses and my vision is now 20/15 in my left eye.  I could shoot without glasses, but with only one good eye, i want the protection that eyewear affords.  Nocks break, strings break, arrows break and bows break.  I know im being paranoid, i mean what could happen in a sport where a bunch of old men are stumbling around the woods with pointy sticks...  A nice thing happened when i began shooting w progressives--- i found i needed to tilt my chin toward my chest to get the long distance spot in the lense.  A happy byproduct of that was tighter gaps.  Guess its just how you look at things.