In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop. The image of the pupil as seen from outside the eye is the entrance pupil, which does not exactly correspond to …

The pupil is the black hole in the center of the colored part of your eye (iris). The pupil is the pathway that lets light get to your retina.

The meaning of PUPIL is a child or young person in school or in the charge of a tutor or instructor : student.

Jan 6, 2026 · A pupil is the opening created by the iris, which controls the amount of light that enters the eye. Learn about medical conditions affecting the pupils.

Feb 26, 2019 · The pupil is the opening in the center of the iris (the structure that gives our eyes their color). The function of the pupil is to allow light to enter the eye so it can be focused on the retina to …

Pupil, in the anatomy of the eye, the black centre opening within the iris through which light passes before reaching the lens and being focused onto the retina. The size of the opening is governed by …

pupil noun [C] (EYE PART) the circular, black area in the center of the eye that gets larger and smaller and lets in light (Definition of pupil from the Cambridge Academic Content Dictionary © Cambridge …

May 26, 2023 · The opening at the center of the iris that allows light to enter the eye.

Dec 4, 2024 · Pupils are the dark-colored openings at the center of your eyes that let light in. Doctors can look at your pupils for clues about your health. The size of your pupils and how they react to...

The pupil is the circular opening that allows light to enter the eye. It is found at the center of an eye structure called the iris, which is ring-shaped and causes differences in eye color...