red-out
vision disorder
Quick Summary
Redout is a condition where centripetal acceleration, such as that experienced during a sharp aircraft dive, causes blood to rush to the head. This results in a reddening of the visual field and headaches. It was first documented in 1942.1
This is distinct from color blindness, which is the inability to distinguish between certain colors, most commonly red and green. This vision disorder stems from issues with the cone cells in the retina, which are responsible for color perception.2
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