I had gotten into the habit that if I was going on SSE during daylight hours, to close one eye as I'm getting in the queue (almost always FP, which is almost always available day-of). Then I open it once in the dark tunnel. That way, one eye doesn't have day-blindness and I can see the first scene. I also close my eyes for the photo for the same reason.
I’m glad I’m not the only one who does this. Also helps to see details in HM.