The term 'pupil surrounders' refers to the structures that surround the pupil of the eye. These structures are the areolae (7 letters) and the irises (6 letters). The areolae are the pigmented ring of tissue that surrounds the pupil, while the irises are the colored part of the eye that controls the amount of light entering the pupil. Together, these structures help to regulate the amount of light entering the eye and provide protection for the pupil.