Why Your Pupils Expand: The Science Behind Pupillary Dilation 👁️✨
0:55
YouTubeAI-Tech-Pal
Why Your Pupils Expand: The Science Behind Pupillary Dilation 👁️✨
Ever notice your pupils getting bigger when you step into a dark room, or even when you're feeling excited or scared? This fascinating phenomenon is called pupillary dilation. When light decreases, your eyes need more light to see clearly, so the iris enlarges the pupil to let in as much light as possible. This automatic response is essential ...
373 viewsJan 31, 2025
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