answersLogoWhite

0

The reason behind why your pupils dilate is because they need to receive more light from their surroundings when it is dark, enabling you to see better. They expand and take in more light, allowing you to see.

They contract again when exposed to a lot of light. You can test this by having someone close their eyes and when they open you can have them look directly at a light and you can see their pupils shrink if you look closely.

User Avatar

Wiki User

14y ago

Still curious? Ask our experts.

Chat with our AI personalities

BlakeBlake
As your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
BeauBeau
You're doing better than you think!
Chat with Beau

Add your answer:

Earn +20 pts
Q: Why do people eyes dilate while they are talking to you?
Write your answer...
Submit
Still have questions?
magnify glass
imp