>Continuing on this tangent, I am 50 and have been exposing my eyes to red light for 3 minutes a day for many months and feel like my night vision has been restored. If I wake up in the middle of the night I used to see gray noise and now I can see darker black with better contrast. But I may be kidding myself.
Maybe you can measure this with some placard on a wall with different shades of black strips (kinda like those old TV calibration screens) where you can see some of the black strips but not others and as time goes on measure if you can improve your visibility into it.
Maybe you can measure this with some placard on a wall with different shades of black strips (kinda like those old TV calibration screens) where you can see some of the black strips but not others and as time goes on measure if you can improve your visibility into it.
[1]:https://www.audioholics.com/home-theater-calibration/hdtv-ca...
Maybe some other chart like this might work better.