If a pilot starts to notice redout while flying, it may be necessary to slow down and adjust the flight plan to prevent damage to the eyes and brain. Pilots usually maintain constant communication with ground control, as well as other pilots in the air, and can alert people to the fact that there is a problem and they may need medical aid on the ground. An ophthalmologist can check the pilot's eyes for signs of injuries and a neurological assessment may also be necessary to check for any brain injuries.