Good morning. I'm getting older and i now wear glasses. I have noticed over the past couple years my new, higher magnification scopes i have issues after 8 seconds looking at a target starts getting blurry. I have my reticle in focus, and parallax is spot on. I get a perfect picture until 8 seconds then gets blurry. According to the internet i have muscle strain. According to my eye doctor i have dry eyes. My eye doctor is not a shooter, he does help with law enforcement with pistol correction, which i have no issues. My question is there any eye doctors that you guys know in central Indiana that are actual shooters? It's getting bad enough that i need to get it resolved or retire. Thank you for any input