The star burst effect for me is caused entirely by my astigmatism. It would happen on any red dot or optic no matter what the quality. As I mentioned, the starburst effect and other aberrations completely disappear when I wear corrective lenses. Poor quality red dots often show a poor or multi dot even when I do wear corrective lenses.I have experienced some of the starburst/corona effect on red dots.
Mostly on the less expensive models (ie Burris & Vortex).
This is the first I've heard of it on a Trijicon.
I've heard mixed results using either Rx or polarized lenses to try to correct it.
What I do know is that if you move to a Holographic sight, it goes away.
Currently the EO Tech makes a really nice one, the EXPS3.
Downside is that it is ugly as hell, moves your head off the stock and eats batteries.
For every plus...a minus.
I still feel the same, the best option is a well fitted stock for reflex/snap shooting.
Sights that naturally align with your eye, with your cheek on the stock.
It should be so natural that you are not even seeing the sights.
It's like looking down the barrel and point shooting.
BTW - I turned 50 this year as well, may we stay forever young at heart.
Best of luck on your upcoming hunt.
BTW, I had LASIK in 2001 and my prescription started out 20/20 for both eyes is now 20/25 left and 20/30 right. My astigmatism and presbyopia have gotten worse over the years. The eye doc says I could get both eyes back to 20/20 and have the astigmatism eliminated with another round of LASIK which wouldn't cost me anything as I had a lifetime guarantee when I had the first procedure. I haven't done it because at this point I'm frankly too chicken to mess with my eyes.