Pupil of the Eye: Definition, Anatomy & Function - Cleveland Clinic
WEBThe pupil of your eye is the black hole in the middle of your iris. Your iris is the colored part of your eye. Muscles in your iris control how big the pupil is. Usually, this happens as a result of how much light is available. This makes the pupil an important part of …
Pupil Definition & Meaning - Merriam-Webster
WEB1. : a child or young person in school or in the care of a tutor or teacher. 2. : one who has been taught or influenced by a person of fame : disciple. pupil. 2 of 2 noun. : the usually …
PUPIL | English meaning - Cambridge Dictionary
WEBa person, especially a child at school, who is being taught: a second-year pupil. a primary-school pupil. The school has over 400 pupils. There is a very relaxed atmosphere …
Pupil: anatomy, structure and function | Kenhub
WEBOct 30, 2023 · The pupil is the small black circle located in the center of the eyeball. Surrounding the pupil is the colored part of the eye, the iris. The pupil’s function is to allow light to pass through and enter the eye. This light then interacts with the cells of the retina, working as part of the visual pathway to provide the ability of sight.
Pupil - Wikipedia
WEBIn humans, the pupil is circular, but its shape varies between species; some cats, reptiles, and foxes have vertical slit pupils, goats and sheep have horizontally oriented pupils, and some catfish have annular types. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop.
Pupil - Definition and Detailed Illustration - All About Vision
WEBFeb 27, 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 begin the process of sight. Typically, the pupils appear perfectly round, equal in size and black in color.
Human eye - Pupil, Iris, Retina | Britannica
WEBThe pupil. 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 …
Pupil - American Academy of Ophthalmology
WEBMay 26, 2023 · The opening at the center of the iris that allows light to enter the eye. Read an overview of general eye anatomy to learn how the parts of the eye work together. All …
Pupil | Iris, Optic Nerve & Retina | Britannica
WEBApr 23, 2024 · 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 the muscles of the iris, the coloured part of the eye.
The Purpose of Pupils in Our Eyes - Verywell Health
WEBNov 8, 2023 · The pupil is the opening located in the center of the iris of the eye. It controls the amount of light that enters the eye. Pupil size is controlled by the dilator and sphincter muscles of the iris. Getty Images / Chris Raven / EyeEm. Why We Have Pupils. The pupil controls how much light is let into the eye.
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