No real difference for astigmatism - a great optic nonetheless - Holosun Sub-compact HS407K-X2 1x 6 MOA Dot Red Dot Sights

I chose this optic for a number of reasons. I chose the green dot for the minimized "starring" for people with astigmatism. Unfortunately, the 6 MOA green dot still has a lot of distortion (not enough to obstruct my view, but enough that it's easily noticeable). If you have astigmatism, and the option to look through this optic before you buy, make sure it will work for you. The battery located somewhere that didn't require removing the optic (in this case from the side) was an absolute must, so kudos to Holosun for making that decision. The installation was straight-forward, simple, and required only a small torque wrench to secure the optic properly (although the same results can be achieved without one, I already owned the Real Avid Torque Wrench), but everything else required for a successful/proper install was included. The glass is clear and big enough to comfortably utilize. The optic has more than enough brightness settings to accommodate any situation and the Shake Awake feature is awesome. Add to that, the optic turns itself off after only 10 minutes (compared to other brands that exceed 60 minutes), extending the battery life even more. The integration of a rear sight is a plus for those who must remove theirs to install an optic.