Answer: redout

AnswerCrossword Clue
REDOUTAstronaut's vision problem
REDOUTPilot's vision problem
REDOUTVision problem during rapid flight deceleration
redoutcondition experienced by pilots and astronauts in which blood is forced to the head and results in a reddening of the field of vision during rapid deceleration or in maneuvers that produce a negative gravity force
redouta condition in which blood is driven to the head