Yellow Turn Signals vs Red Turn Signals

Tonight (after dark) I was stopped behind a Toyota RAV4 at a signal when my eyes began to hurt. I commend the driver in front of me for using his/her left turn signal, but that brash yellow light was painful. I thought red was the preferred color for dash lights and rear lights because the red helps one to maintain their adjusted night vision. Whose idea was it anywhere to go with these yellow bonkers?