Crossword clues for Pupil controller 4 lettersAnswerClueIRISEye part that controls pupil sizeIRISPupil controllerIRISIt's responsible for controlling a pupilIRISIt controls a pupil's sizeIRISIt controls a pupilIRISPupil-size controllerIRISPupil's controllerIRISIts muscles control the pupilIRISController of the pupil's sizeIRISDiaphragm that controls the size of the pupilIRISESPupil controllers