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Astigmatism and Optics Choices #15204008 09/07/20
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JakeBlues Offline OP
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I have astigmatism. As most people know, astigmatism causes havoc when using non "multiplied" red dots. I would love to use a red dot for the eye relief and eye placement forgiveness when moving but I'm not hitting anything when it looks like a Rorschach inkblot.

I'm struggling with a decision on an AR optic between a prism scope, a low power variable scope, and a red dot with multiplier. I can make an argument for any of those 3 choices. This rifle would be for close in shooting and out to about 100 yards. Regardless of what I choose, it will have iron flip up sights anyway.

Prism scopes offer simplicity, etched glass reticle, glass clarity and possibly magnification. Low power variable scopes probably offer the best glass quality, good close in vision on 1x, etched reticle, magnification and possibly illuminated reticle. The red dot with magnifier offers red dot eye relief and placement forgiveness, clarified dot when used with the magnifier and obviously magnification.

Have you used 2 or more of these options and decided to go with one over the other? Please share your thoughts. Thanks in advance.


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Re: Astigmatism and Optics Choices [Re: JakeBlues] #15204035 09/07/20
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I don't have any RDS/magnifier. The RDS is a non-starter for me, with 59 year old eyes.



I do have prisms in 1X, 3X, and 5X, and a couple LPVO scopes. Primary Arms stuff.

Between the prisms and the LPVO, it's kind of a toss up. I probably like the 3X prism the best for a simple all-arounder. The LPVO offers some added versatility, but it's heavier and bulkier too.

Choices, choices.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15204047 09/07/20
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Here's something to consider.

Comparing the 1X prism to the 1-6x24 dialed to 1X. In this situation, the reticle on the 1X prism appears quite small. The reticle on the LPVO (2d focal plane model) appears large.

I like the large reticle much better in that comparison.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15204071 09/07/20
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The red dot looks so bad for me that I'd rather use iron sights if I had nothing else. The red dot coupled with the magnifier offered a sharp dot but the glass wasn't as clear as other choices. Yeah choices choices.


Government is a disease masquerading as its own cure- Robert LeFevre.
Re: Astigmatism and Optics Choices [Re: JakeBlues] #15204139 09/07/20
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Originally Posted by JakeBlues
This rifle would be for close in shooting and out to about 100 yards. Regardless of what I choose, it will have iron flip up sights anyway.


Everyone's eyes are different, but for </=100 yards I wouldn't worry about it. Let it flare into a big blog blob, and fire away grin

I have the astigmatism too, and see a "comet" shaped blob instead of a red "dot". That said, I don't find it to be a problem unless I am shooting at 300+ yards.

Are you certain that the RDS is the problem?

Last edited by 4th_point; 09/08/20.
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Re: Astigmatism and Optics Choices [Re: JakeBlues] #15204366 09/08/20
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I have it as well and prefer low power variables, since I can focus the reticle. That said, I have an Aimpiint Carbine Optic, and it’s great. My particular brand of astigmatism makes red dots look like an infinity symbol oriented at 45 degrees. I just aim with the same part of the symbol, and make sure the dinner is set to the lowest setting with a visible dot to reduce flare and it works well.

Old70

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15204413 09/08/20
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I have LPVO’s and red dots. I have astigmatism too.

I used to think LPVO’s were the best for me and I suppose they are more versatile but for close range speed shooting, there is no doubt a red dot is faster. I have always cleaned up the dot by using the rear sight and finally figured out that you don’t need a crisp dot up close and at distance you have time to use the sights with the dot and they enhance each other. We were making solid hits on a 2/3rd size silhouette at 300 yards.

I’ve not used a magnifier but looking through one I don’t see the benefit over the extra weight, expense and bulk.

If I had one gun, it’d have a LPVO but given the time to choose for each situation I do like a red dot.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205534 09/08/20
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I use a burris 1X6 on mine. I have an astigmatism too.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205626 09/08/20
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What 4th and TWR said. Have pretty bad astigmatism, too. Not just one comet tail.

Perfect is the enemy of good enough. Am still better, faster with RDS. To 200 yds anyway. With/without iron cowitness to help.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205803 09/08/20
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I heard for some people, wearing polarizing glasses help quite a bit.


Government is a disease masquerading as its own cure- Robert LeFevre.
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Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205823 09/08/20
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I have and use the Primary Arms prism scopes. I have the 1x Cyclops , the new 2x GLX model and the older 3x scope. I love the 1x and the new 2x model. The older 3x has short eye relief and small field of view.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205828 09/08/20
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JakeBlues Offline OP
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Thanks, I was looking at the cyclops too.


Government is a disease masquerading as its own cure- Robert LeFevre.
Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205833 09/08/20
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I'm no eye doctor but I wonder if there are any red dot sights that have some kind of diopter ring that would allow for some mitigation. If you wear your prescription glasses, do you still have the dot issues>


Government is a disease masquerading as its own cure- Robert LeFevre.
Re: Astigmatism and Optics Choices [Re: JakeBlues] #15205943 09/08/20
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Just came across this Bushnell prism scope that's 1x and only weighs 4 1/2 ounces without the mount and has an adjustable diopter. Anyone looked at this?

https://www.bushnell.com/red-dots/tac-optics/lil-p-1x-prism-tac-optics-red-dot-sight/BU-BT71XPS.html


Government is a disease masquerading as its own cure- Robert LeFevre.
Re: Astigmatism and Optics Choices [Re: JakeBlues] #15206097 09/08/20
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Eotech works well for me. As my astigmatism gets worse im moving away from red dots.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15206486 09/08/20
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I've got an eotech, an aimpoint, 2 Sig's and I find it odd that the Sigs have a cleaner dot to my eyes than the Aimpoint. Trying different red dots might make a difference.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15207091 09/08/20
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Originally Posted by JakeBlues
Just came across this Bushnell prism scope that's 1x and only weighs 4 1/2 ounces without the mount and has an adjustable diopter. Anyone looked at this?

https://www.bushnell.com/red-dots/tac-optics/lil-p-1x-prism-tac-optics-red-dot-sight/BU-BT71XPS.html


I've considered it too, but don't have any good intel on it and don't care for most devices with push buttons.

I still feel that you're overthinking the problem. Unless your astigmatism is really bad, I don't think you should have a problem with a RDS at 100 yards. If you do, are you sure that it isn't the rifle itself or ammo?

With my astigmatism, I've hit 12" plates at 300 yards with my .338 Magnum using a RDS. And my AR rifles with RDS actually shoot as well for me, or better, than using a 2.5x prism at 50 -100 yards. Go figure.

Last edited by 4th_point; 09/08/20.
Re: Astigmatism and Optics Choices [Re: JakeBlues] #15207184 09/09/20
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In the same situation. It is indeed bad enough for me to not want to use RDS. A $60 reflex sight looks better. Might try a prism. Standing by for someone to tell me what I see shouldn't bother me...... Thanks in advance. Love LPVs but want something else in the dark. Open sights are fun as hell too, in the light. Subscribed.


Maybe?
https://www.primaryarms.com/primary-arms-slx-3x32mm-gen-iii-prism-scope-with-acss-556-cqb-m2-reticle


Critical thinking not needed.

Re: Astigmatism and Optics Choices [Re: JakeBlues] #15207236 09/09/20
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I am using a Leupold VXR Patrol, LPVO with a firedot. At its lowest setting I can see red dot fairly sharp, most times leave it off using lowest magnification setting.Astigmatism sucks especially now at age 63.


1st John 4:7-8
Re: Astigmatism and Optics Choices [Re: MtnBoomer] #15207901 09/09/20
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Originally Posted by MtnBoomer
In the same situation. It is indeed bad enough for me to not want to use RDS. A $60 reflex sight looks better. Might try a prism. Standing by for someone to tell me what I see shouldn't bother me...... Thanks in advance. Love LPVs but want something else in the dark. Open sights are fun as hell too, in the light. Subscribed.


Maybe?
https://www.primaryarms.com/primary-arms-slx-3x32mm-gen-iii-prism-scope-with-acss-556-cqb-m2-reticle


I just got one of those 3X with the 5.56 ACSS reticles in, a few days ago. Haven't got it mounted /zero'd yet, but it looks a little safer to shoot now (fire conditions).

I have had the 3X with the 7.62x39 ACSS reticle for a couple years. I like it a lot.

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