You can buy all sorts of tiny bottles of "Crap" dope in dive shops to kill lens fogging. BUT, quite a number of pro outfits use nothing more than blue Dawn dishsoap in bulk as an anti-fog surfactant. Wipe your lenses down with alcohol and then treat them with Dawn. Lasts a long time to prevent fogging and is cheap.
I was introduced to Randolph Rangers many years back and continue to use them for shooting sports, including hunting with bows. Regardless of vision, I prefer having eye protection when shooting stuff, especially when bushwacking in low light. Have no issues with string clearance, but good binos with ample eye relief are a must to work well with glasses in place.