Other fun military fact, they tell you to decrease the time to gain "unaided night vision" you should close your eyes and shut out as much light as possible. This way they adjust faster and better. Learned it in the Marines and I still do it to this day to adjust to the dark better.
Bit-Tree-Dabook t1_j6jyrom wrote
Reply to comment by Spiritual_Jaguar4685 in ELI5 why do your eyes adjust so fast to bright light but so slowly to darkness? by melig1991
Other fun military fact, they tell you to decrease the time to gain "unaided night vision" you should close your eyes and shut out as much light as possible. This way they adjust faster and better. Learned it in the Marines and I still do it to this day to adjust to the dark better.