My hearing gave out years ago, but my eyesight held on much longer. However, as the years progressed, I found it harder and harder to focus a scope, and when looking at a red-dot sight, I saw two dots instead of one. (If there had been three dots I simply could have aimed with the middle one.) For a while I could squint and get the dot into focus, but then even that didn’t work, so there it was: Get prescription glasses for shooting.
The way you do this is as follows: Take either your scope sight or red-dot sight to the eye doctor to show him what you have to deal with. Do not attach a firearm to the sight or you will have lots worse problems than your vision. He will give you a prescription. Then you need to have your interpupillary distance measured. My eye doctor doesn’t take this measurement (or do windows) so I got it from the guy who fits me for reading glasses.
You next go to the Decot Company website (sportglasses.com) and look at the styles and colors they offer. (If the name Decot is not familiar, they are probably the oldest and largest supplier of shooting glasses in the business.) Tell them what you want and give them your prescription. I got my glasses in about a week and they have made an incredible difference. Everything is in focus. I see one dot instead of two. I even shoot better than I did.
Now, if only someone would invent a hearing aid that actually works.