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→Night Vision
Night vision also has constraints: your night eye can't see colours or details, or directly ahead, or differentiate objects that don't move.
Because our night vision functions differently than our day vision, the objective of night lighting is to preserve night vision. Night vision deteriorates when the eye is subject to intense light. This destroys the essential chemical rhodopsin, which can take 45 minutes for 80% recovery. So night lights should be designed for low intensity, no matter their colour, and you should avoid looking directly at bright lights.
For night vision in the pilothouse, switch lighting between daytime white and night-time green or turquoise instead of the traditional red. Turquoise may be better for men with red/green deficiency.