Just a quick note that it may not be your astigmatism correction that causes you problems using the EOTech. My bet is that your glasses lenses are polarized, and that's what's causing issues.
In order for the EOTech holographic display to work, the back lens on the optic is
plane-polarized. The reticle display is actually projected out to what appears to be the target plane, like a plane's cockpit Heads-Up Display (HUD).
Generally speaking, if your glasses or sunglasses are polarized, you should be able to see the holographic reticle normally...so long as you are looking dead-on into it, with your glasses and the EOTech lens nicely parallel. If the angle of your glasses lens start to tilt away from parallel to the EOTech, you can lose the reticle display entirely. 'Course, that's one of the advantages of the holographic display: not matter what crazy angle you might need to take to shoot around a barrier, so long as you can see the reticle and put it on top of the target, you're lined up. But if your glasses are polarized, they can conflict with the EOTech's plane-polarized rear lens.
I have three EOTechs, and they remain my favorite CQB optic.
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