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  • Pupil - Wikipedia
    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 location and size of the physical pupil because it is magnified by the cornea
  • Pupil of the Eye: Definition, Anatomy Function
    Small pupils can happen when you’ve had a stroke or when you’ve used opiates, among other reasons Mydriasis is the name of the opposite condition, having dilated pupils
  • Diseases of the Pupil: Causes, Signs Systemic Insights
    Its size and reaction to light provide critical information not only about ocular health but also about neurological and systemic well-being Abnormalities in the pupil—whether in size, shape, symmetry, or reactivity—often indicate underlying disease processes
  • Pupil Function and Disorders That Affect It - Verywell Health
    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
  • Human eye - Pupil, Iris, Retina | Britannica
    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
  • Why Are My Pupils Dilated? 5 Causes of Dilated Pupils (Mydriasis) - WebMD
    Those dark circles are your pupils, the openings that let light enter your eye so you can see Muscles in the colored part of your eye, called the iris, control your pupil size
  • PUPIL | English meaning - Cambridge Dictionary
    All pupils are expected to attend school assembly The government has pooh-poohed the idea that primary schools will begin to select pupils The vast majority of pupils attend state-funded schools The artist himself did not paint the backgrounds to his pictures - they were done by his pupils
  • Dilated Pupils Pupil Dilation: Causes Symptoms - All About Vision
    They are sometimes called dilated eyes The size of your pupil is controlled by tiny muscles in the colored part of your eye (iris) and the amount of light reaching your eyes In bright light, your pupils should constrict (get smaller) to prevent too much light from entering your eyes
  • Eye Anatomy: Parts of the Eye and How We See
    Muscles in the iris dilate (widen) or constrict (narrow) the pupil to control the amount of light reaching the back of the eye Directly behind the pupil sits the lens The lens focuses light toward the back of the eye The lens changes shape to help the eye focus on objects up close
  • Understanding Pupils: What They Are and What They Can Tell About Your . . .
    Learn about the dark openings at the center of your eyes called pupils, how they react to light, and what changes in pupil size and shape can indicate about your health





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