after almost 30 years of competitive shooting I have some hearing loss in the 4000Hz range... that being said, I use the custom molded silicone plugs that enter the ear canal....when I RO someone shooting a 9x25 I'll borrow a set of muffs...I wear a wide brimmed hat in summer, and I still use a pair of the Peltor's made for Dillon that have the neck support wire... regular Peltor's for shooting on a traditional shooting line
for glasses, I wish I could wear polycarbonate wrap arounds, but with a 3.75 diopter astigmatism, and trying 3 or 4 attempts to get the correct optical density of the polycarbonate, including a pair of inserts, just wear the largest titanium framed, spring loaded ear piece I can find... with the need for bifocals, I had my optician make my entire dominant eye lens to my near prescription, and move the bifocal line up a couple of millimeters on the non dominate eye... I tried several pair with the near prescription in different locations but did not work out...
I hope this helps you older shooters... It takes about 30min to adjust to wearing the monovision lenses... and I don't use them for aerial birds