Starting from around my 50th birthday, I noticed a weird phenomenon with my right eye.
If a room abruptly got dark (such as switching off a light at night), my night vision in my right eye would occasionally go to almost zero. This was scary the first time it happened, but if I turned the light back on, my vision would be normal again. This also only happened with the right eye, and only seemed to occur once in awhile. I never had night vision problems outside, such as when I was driving. This only seemed to occur from abrupt transitions from full light to darkness, such as turning off a light switch.
At a recent doctors appointment, I was told that eye has cataracts, though it's mild right now. That is highly likely to be the reason for what I'm experiencing. I just thought of it right now because it occurred a short time ago when I turned off the light in the room.
I know that you can get vision correction along with cataract surgery, where they can bring you back to 20/20, and it isn't likely to induce farsightedness at age 45+ the same way typical laser eye surgery does. (This is why they don't recommend laser eye surgery to correct nearsightedness once you reach middle age.)
I can live with this cataracts issue for now, since it really only tends to affect me when I'm about to go to bed anyway. As I said, it never happens to me while driving at night. However, eventually I will need to address this, and perhaps it would be better to do it soon, so I can also get the benefit of vision correction.
Has anyone done this before?

