We had a beautiful sunny day in NYC today, and I was able to do the 20/10 line before I went out in the morning. I had nice crystal-clear vision during the day time. Couldn’t see any benefit from my -0.25 glasses vs my plano sunglasses, which made me happy.
Now I just spent a couple of hours walking around outside in the dark with a few pairs of glasses, and I just can’t clear up everything to get it absolutely perfect without correction.
There’s a lot of dimly lit text that I can read perfectly with zero focus challenge with correction of -0.25 but just won’t blink and clear no matter how much zen kavannah and active focus I throw at it. I wasn’t getting any obvious astigmatism problems like double images or halos (I can clear those pretty easily now and I don’t detect any astigmatism with the various test images.)
I’m starting to wonder if I need to be slightly hyperopic during the day (+0.50 or +0.75 ??) in order to get perfect night vision, or if there’s some trick to doing active focus at night that I just don’t get. I can do fine with lighted signs and street signs, but I just don’t get that crystal clear image with naked eyes. Or at least I couldn’t get it tonight.