Night vision

About the problem of night vision

Slow adaptation to darkness Many people become very accustomed to constantly being in a point of white light. Unless we are helped to learn to see in the dark, we will continue to see everything white, as if we were unable to see things in the distance that the pupil cannot focus on. In Chapter 7, we saw the physiological mechanism of adaptation that occurs after the eye begins to look at the most distant object located in external darkness. During the day, a person at the same eye height looks at an object that is at the same height as this eye itself. To focus on an object located where