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Why does the pupil get smaller when a bright light is shone in the eye?
Wiki User
∙ 11y ago
Our pupils adjust to absorb enough light to see, but not so much that it damages our eyes. So when a bright light is shined in the eye, the pupil closes so that the eye isn't damaged. That's why doctors make you wear sunglasses after they dilate your eyes.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoYour pupil gets bigger to let more light into your eye so you can see better. When you are in the light, the pupil gets smaller to block out excess light.
Wiki User
∙ 13y agothe pupil controls the amount of light into the eye, it becomes smaller so that less light enters the eye
Wiki User
∙ 13y agoBecause in the dark, it needs to capture more light, which is why it gets bigger. In the light, you are already able to see, so it stays small.
Wiki User
∙ 14y agoThe eye opens its aperture (the pupil) wider to let in more light to the retina, improving vision in darker conditions.
Wiki User
∙ 8y agoIt contracts to limit the amount of light entering your eye in order to avoid overwhelming and possibly damaging the retina.
Wiki User
∙ 9y agoso less light will enter
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The part of the eye which decreases in size when a bright light is shone into the eye?
The pupil decreases in size to lessen the amount of light allowed in, so as to prevent damage.
When a light is shone into one eye what happens to the pupil of the other eye?
The eyes constrict, not dilate, when a light is shone into the eye...this is a multi-arc process going through the parasympathetic nervous system and the EW nucleus.
What is the state of the pupil before light was shone into it?
usually the state of the pupil is determined by the
Example of reflex action?
reacting when someone flashes his or her hand to your face that includes blinking-------------------------------------------------------A reflex action is a sudden reaction to a stimuli (a change in the environment) & often acts to protect you.Some are controlled by the brain (cranial reflexes) such as when you blink as dust lands in your eye, or your pupil gets smaller as light is shone in your eye.Some reflexes are controlled by the spinal cord (spinal reflexes) such as when you touch a hot object or stand on a pin.Some reflexes can have learnt responses so they are calledconditioned reflexes. These reflexes occur without you even thinking about them e.g. walking & producing saliva when you smell food.
My pupils have hippus When shone in light they contract then get a tiny bigger than contract but they only get a tiny bit bigger What can this be caused by?
it can be present in young adults simply because they have elevated or higher levels of epinephrine in their blood
What is the medical term for contraction of the pupil?
The phrase that means that someone's pupils contract when a bright light is shone into their eyes is "pupils reactive" ... they react to the light. If they don't react to the light, they'd be described as "pupils fixed and dilated."
The part of the eye which decreases in size when a bright light is shone into the eye?
The pupil decreases in size to lessen the amount of light allowed in, so as to prevent damage.
When a light is shone into one eye what happens to the pupil of the other eye?
The eyes constrict, not dilate, when a light is shone into the eye...this is a multi-arc process going through the parasympathetic nervous system and the EW nucleus.
What is the state of the pupil before light was shone into it?
usually the state of the pupil is determined by the
What happens when bright light is suddenly shone into the eyes?
Your mother.
What is an example of Luminescent in a sentence?
The Luminescent crystal shone in the bright light.
What kind of pattern of light would you get if you shone monochromatic light on a diffraction grating?
If you shone monochromatic light on a diffraction grating it would alternate bright and dark bands. Only white light white light shone through a diffraction grating would produce a band of colors.
Why is it important for the pupils to constrict when a light is shone in your eyes?
This protective reflex prevents excessively bright light from damaging the delicate photoreceptors.
What is an egg candler?
an egg candler is when a bright light is shone on the eggs to check the fertility rate of the egg (infertile or fertile)
How do you use the word shone in a sentence?
The sun shone so bright people got burned.
How do you spell the past tense of shone?
shone is the past tense of shine.The light shines in my window.The light shone on my bed.
Will increasing the amount of light entering the eyes cause the pupil to increase?
Increasing the amount of light entering the eyes causes the pupils to contract. Think about it, if someone shone a flashlight into your eyes, wouldn't you try to shield them?
