This is slightly off topic,,,please forgive. I had never heard we have poor red response (assume meant as when dark adapted) so I did some surfing. I came across an article that was very interesting. If this article is correct we're all running around with our red flashlights degrading our dark adaptation every time we turn one on. Read and see! No pun intended Also to see red it appears you need to look directly at what you looking at. The center of your retina is all red cones. Interesting read.