What Causes a ‘Glow’ in the Eyes During Love?

When you're in love, your eyes can glow because of the way light reflects off a special part of your eye called the iris. Imagine your eye is like a window, when it's dark, the light inside your eye shines through and makes your eyes look shiny or glowing, just like the night sky.

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Examples

When you're in a dark room with your favorite person, your eyes might look like they're sparkling like stars.
Your little brother thinks his puppy’s eyes glow when it sees him, but that's just the tapetum lucidum at work!
A fairy tale princess looks into her prince’s eyes and feels the magic of love glowing inside them.

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Categories: Biology · love,biology,eyes