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Astigmatism and Optics

Discussion in 'Black Rifle Forum' started by MississipVol, Oct 27, 2012.


  1. MississipVol

    MississipVol
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    I bought my first AR a month ago (Colt 6920 MOE) and plan to get my 1st optic in the next few weeks.

    I was planning to get either an Eotech or Aimpoint because I like the way they look on an AR and the quick target acquisition regardless of cheek weld. However, I went to a store to check them out - they didn't have an Aimpoint but the Eotech looked cloudy to me and it seemed difficult to focus with it. I wasn't able to check out an Aimpoint but the dot on the Vortex Strikefire I looked through looked like a tiny kidney bean.

    However, I looked through a Burris MTAC 1-4X scope and the reticle was crystal clear. The eye relief was (of course) not nearly as good and I am sure it is not parallax free at 1X but now I am torn because this was so much clearer and I know the extra magnification would be helpful.

    With my Astigmatism, am I better off to go with a etched reticle like the Burris MTAC? Do you think the Aimpoint would be better? Is it possible I would get used to the Eotech? Any other options out there?

    By the way, my budget is around $500 and will be shooting primarily out to 100 yards. TIA!!!
     

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  2. javelinadave

    javelinadave
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    Hebrew Hammer

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    Don't let other people buy you your optics. What works for you is what you should buy. I hate Eotechs, my team mate loves them. I love Aimpoints, another team mate uses a Trijicon reflex. Nobody is right and nobody is wrong with their choices. Do stay away from Chinese anything if you are a serious shooter, competitor or on a work rifle.
     

  3. WoodenPlank

    WoodenPlank
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    Who?

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    ALmost any red dot type scope can look funky with astigmatism, unfortunately. I would suggest playing around with an Aimpoint as soon as you get a chance. I have found it's a little more friendly to astigmatism than the EO Tech, especially if you avoid cranking the Aimpoint's brightness up any higher than is really needed.
     
  4. MississipVol

    MississipVol
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    I live in an area where there is not a lot of places to check out optics so I need input on these types of decisions. I am not looking for someone else to buy my optic but do need some advice on the subject.
     
  5. Cole125

    Cole125
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    Buy what works for you, it sounds like a 1-4x would be best in your case. I am near-sighted so without my glasses Aimpoint and EoTech reticles look blurry, but the Aimpoint is still usable. 1-4x or ACOG type scopes work for me regardless if I have my glasses on or not.

    I don't know if you can get corrective glasses for astigmatism or not, but if you can you will have better luck using a red dot type sight.
     
  6. OdinIII

    OdinIII
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    I was all set to get an Aimpoint Pro a while back and found one in stock to look through. I had hoped that it would look better than the Eotech that I had. It didn't, if I turned it up to the brightness level that I desired there was a very large star like flare effect that just looked terrible. The Eotech reticle doesn't look perfect but for my eyes it is very usable. I ended up selling my old AA model and buying an EXPS which I'm very happy with so far.

    I also bought an MTAC for another rifle. I feel that I should be able to do anything that needs to be done with the rifle.

    If you are concerned about the speed of target acquisition with the MTAC then spend some time on youtube and watch a few 3-gun videos of people using the MTAC. I don't think it will hold you back.

    Good luck.
     
    #6 OdinIII, Oct 27, 2012
    Last edited: Oct 27, 2012
  7. FatBoy

    FatBoy
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    I have an Astigmatism also. My friend was selling his EO, so I gave it a look see. Holy crap, it was horrible to MY eyes. OTOH, I have 3 AimPoints (comp M2s). The dot has a very small "comets tail" coming off it, but it is hardly noticeable compared to the Football like dot of the EO. I also have two ACOGs, which are perfect.

    To MY eyes the tech that AimPoint uses is much better than EoTech for MY Astigmatism. YMMV

    FB
     
  8. FatBoy

    FatBoy
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    You can, and I do have them.

    Although I have not done it, someone smarter than I, recommended to people w/ Astigmatism to bring their AimPoint to the next apt w/ the eye doc and have the lenses adjusted until the dot is perfect.
     
  9. wct097

    wct097
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    Prior to being diagnosed with Astigmatism, I was set on getting an Eotech. Then I looked at some at a shop and the gun shows and couldn't figure out why they looked so fuzzy. Uncorrected, I think they're completely unusable for me. I'm now thinking about an Aimpoint T1 Micro, having tried one out with glasses on. I need to try the Eotech again with my glasses, but I'm thinking the smaller single dot would make more sense for the times I might need to use the gun without my glasses.


    That's actually a pretty good idea, and I may in fact do that.
     
  10. Big Bird

    Big Bird
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    With most red dot sights its a mistake to focus on the dot. You need to focus on the target. All red dots are fuzzy to a degree and that's normal.

    If you find yourself concentrating on the dot you aren't using the sight correctly.

    http://www.aimpoint.com/us/products/whyreddotsight/
     
    #10 Big Bird, Oct 27, 2012
    Last edited: Oct 27, 2012
  11. cowboy1964

    cowboy1964
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    I have pretty bad astigmatism in my dominate eye and the entire EOTech reticle just is one big blur. It's almost as bad with my other eye too though and that is just nearsightedness. The EOTech would still work for close in shooting though. Fortunately I have 20/20 with no astig. with correction.
     
  12. Zombie Steve

    Zombie Steve
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    Good Lord... 10 posts until someone finally got to it. :thumbsup:

    Both eyes open... focus on the target.
     
  13. Trey83

    Trey83
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    I have an astigmatism and I'm very happy with my Aimpoint. If I focus on the dot I can tell it isn't round but when I'm actually out shooting I don't notice it at all. As mentioned before, turning the brightness down to the proper level helps quite a bit.
     
  14. MississipVol

    MississipVol
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    I've been looking at various optics since reading your posts.

    What do you think about THIS option considering what I am dealing with?

    http://www.burrisoptics.com/ar332.html

    (Burris 332)
     
  15. OdinIII

    OdinIII
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    What will the rifle be used for? I personally wouldn't want a fixed 3X if the rifle might be used for home defense at inside the home ranges.
     
  16. MississipVol

    MississipVol
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    Mostly range use out to 100 yards, VERY occasional hunting, and YES - a potential HD weapon for CHTF scenarios.

    But I was actually thinking I could put a mini-red dot on the top. It has built in rails on the top and sides for this purpose.
     
  17. OdinIII

    OdinIII
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    Everyone has an opinion and mine is that you sound like a perfect candidate for the MTAC. It has the ~1X that enables quick up close and personal shots and 4X for use while hunting or trying to shoot groups at the range.

    The only downsides that I can think of is that the battery life for illumination is quite short and the scope and mount can add a lot of weight to the rifle.



    Sent from my DROID RAZR using Tapatalk 2
     
  18. janice6

    janice6
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    I have a red/green dot sight (switchable), and I find that the eye response to the green is far superior to a red dot. The shape and intensity are better and the dot distortion is less for me. That's not even counting it's much better brightness in daylight.
     
  19. ratf51

    ratf51
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    I'll chime in, too. I have astigmatism and had an Eotech. I like the large circle and dot configuration of the Eotech, but over time it bothered me that I didn't have the nice "dot" due to my astigmatism. I recently did a 20" AR build and sold the Eotech to fund a Nikon M223 2-8x for that build. Put the irons back on my carbine. Plain old cross-hairs are less affected by my astigmatism. I have never had the opportunity to look through an Aimpoint so I can't speak to how they might compare as RDSs, but for me, cross-hairs seem best. I may eventually put a 1-4x of some sort on my AR carbine. YMMV.
     
  20. Cole125

    Cole125
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    I've got a Burris AR332 and its a outstanding little sight. Its built like a tank, pretty much a battery powered ACOG. I've had mine over a year and still on my first battery, its held its zero, and was easy to sight in. IMO its a better option than a red dot for people with less than perfect eye sight, the 3x magnification goes a long way.

    He is mine on my CMMG M4 LE.

    [​IMG]