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Yes, they do. The dilator muscles in the iris (colored structure) enlarge the central opening (pupil) to allow more light to reach the retina. When light levels rise, the opposing (sphinctor) muscles close the iris again to reduce the admitted light.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoit is actually the other way around, but in the dark your eye get bigger to capture more light your eyes get smaller in the light, because if they were as open as they were when your eyes are when your in the dark it would hurt your eyes which is why it hurts when you turn the a bright light on suddenly while you are in a dark room it catches your eye while their adjusting.
Wiki User
∙ 12y agoOur eyes do dilate in the dark because when I was reading the New Jersey Driver's Manual because I'm getting my lisence soon, it said that our eyes dilate at night time.
Wiki User
∙ 15y agoYes.
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Can steroids cause the pupils to dilate?
Can steroids cause pupils to dilate
Is it true that if you say something someone likes to hear their pupils will dilate?
YES pupils will dilate when that person is interested in you
When your pupils dilate are you lying?
Not necessarily. Eyes dilate for many reasons.
Does pcp dilate your pupils?
Yes
Do your eyes have to be dilated to have a concussion?
No. If the concussion is moderate then the pupils probably won't dilate. pupils usually dilate due to swelling in the brain.
What is a sentence with dilate?
The drops the ophthalmologist put in my eyes made my pupils dilate.
Does weed dilate pupils?
no but i makes your pupils small and gives you bloodshot eyes
Why do narcotics make pupils constrict?
They don't, narcotics make your pupils dilate.
Shining a flashlight into your eye would cause your pupils to become?
Your pupils would dilate
When your pupiles dilate do they get bigger or smaller?
Dilated pupils are bigger, and constrictred pupils are smaller.
What is it called when a person's pupils no longer dilate from the light?
Pupils don't dilate from light, the constrict. They dilate in the dark, to take in more light, and constrict in the light so your eyes don't get damaged. Hallucinogenics, stimulants and alcohol and make your pupils dilate and opiates and diazepam can make them constrict. Im not sure what that's called though..
What OTC drugs dilate pupils?
Dramamine, Diphenhyramine:)
