The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. [1] It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil. [2] The size of the pupil is controlled by the iris, and varies depending on ...
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.
Human eye - Pupil, Iris, Retina: The amount of light entering the eye is restricted by the aperture in the iris, the pupil. In a dark room, a person’s pupils are large, perhaps 8 mm (0.3 inch) or more in diameter. When the room is lighted, there is an immediate constriction of the pupils, the light reflex. This is bilateral, so that even if only one eye is exposed to the light, both pupils ...
What Are Pupils? 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 ...
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.
The meaning of PUPIL is a child or young person in school or in the charge of a tutor or instructor : student.
All the different part of your eyes work together to help you see. Learn the jobs of the cornea, pupil, lens, retina, and optic nerve and how they work together.
All about the pupil of the eye, including Adie's tonic pupil and other conditions that affect pupil size.