This morning I got up, put on my glasses, visited the kitchen, and on the way back to the bedroom I thought, "Wow, my vision is really blurry."
I stopped, took off my glasses, and checked to make sure they weren't Gary's. Nope. I rubbed my eyes. Did no good. I couldn't quite tell if my vision was better or worse; it was just wonky.
"Ah," I thought, "My cataracts must be advancing. Sometimes that makes your vision worse and sometimes temporarily better."
I just took it in stride and by the time I got back to the bedroom I had plans to contact the eye doctor and accept my fate.
Until I looked on the table, and saw what were clearly my glasses, which meant that I was wearing Gary's. I'd checked that, but I took off Gary's glasses to check Gary's glasses, so I was blind when I checked. I put on my actual glasses, checked the glasses in my hand, and then the differences became obvious.
I'm really pleased with how well I faced imminent blindness, though.