pupils on molly - HEALTHIES
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. The amount of light entering the eye is restricted by the aperture in the iris, the pupil.
Understanding the Context
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. 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.
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Key Insights
The size of your pupils and how they react to... 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. 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. Understanding Pupils: What They Are and What They Can Tell About Your ...
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The pupils are generally equal in size. They constrict to direct illumination (direct response) and to illumination of the opposite eye (consensual response). The pupil dilates in the dark. Both pupils constrict when the eye is focused on a near object (accommodative response). Feelings such as surprise, fear, or attraction can trigger the sympathetic nervous system, causing the pupils to widen. This response is linked to the body’s general state of alertness.